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Scroll saw problems and Solutions


Scroll Saw Problems and Solutions

Scroll saws are a popular tool for woodworkers who want to make intricate cuts.

However, there are some common problems that can occur when using this type of saw.

In this blog post, we will discuss the most common scroll saw problems and their causes.

We will also provide solutions for each problem, so you don’t have to worry about your project being ruined by these issues!

Problem: My Scroll Saw Won’t Cut Straight

Causes:

  • Incorrect blade tension
  • Dull blades
  • Poor alignment of the blade and saw table
  • Misalignment of the workpiece

Solutions: This is one of the most common problems, and there are many potential causes for it.

Here’s what you can do to fix this problem. First, make sure that your saw blade is straight (not bent or warped).

If it isn’t, replace the blade immediately. Next, adjust your fence so that it lines up with the blade.

If your saw table is not parallel with the blade, adjust the saw table so that it is.

Finally, make sure that your workpiece is correctly aligned with the blade and fence.

Problem: Why Does My Scroll Saw Blade Keep Breaking

Causes:

  • Broken Blades
  • The blade is not tensioned properly
  • The blade is the wrong size or type for the material
  • The blade is old and worn
  • The blade is not properly aligned
  • The stock is too thick, or the cut line is too close to the edge

Solutions: The solution to the problem of a broken blade may be as simple as replacing it with another one.

If you are using an old blade, this could also be the issue. Make sure that you are using the correct size and type blade for your material and that it is properly tensioned.

Check to see if the blade is properly aligned and that the stock thickness is appropriate for the cut line.

If all of these things are in order and you are still having problems, you may need to adjust the saw’s blade tension.

Problem: Why Is My Scroll Saw Jumping

Causes:

  • Blade tension is too loose
  • There’s a burr on the bottom of your material, causing it to stick to the table
  • You’re not using a blade that’s appropriate for the material you’re cutting
  • The table isn’t level

Solution: First, make sure that your blade is at the right tension for cutting through your material.

If it isn’t, tighten or loosen as necessary and try again. Next, check to see if you have a burr on the bottom of your workpiece.

This can occur when a material sticks to the table while being cut by the saw blade, causing it to vibrate.

Clean the material and make sure it’s not sticking to the table as you cut (use a lubricant such as WD-40 if necessary).

Finally, make sure that your blade is properly sized for cutting through your workpiece, and level out any unevenness in your saw table with shims or other materials before continuing.

Problem: Why Does My Scroll Saw Blade Twist

Causes:

  • Tension is too tight
  • Friction on the blade as it slides across the table
  • The blade is too thick for your saw
  • Uneven feed pressure

Solution: Blade twisting can often be caused by incorrect blade tension. If the blade is too tight, it will cause the saw to vibrate and the blade to twist.

You can try adjusting the blade tension until the problem goes away. Another potential cause of blade twisting is friction on the blade as it slides across the table. Make sure that your table is smooth and free from burrs or scrapes.

You can also try lubricating the table to see if that solves the problem. If none of these things work, you may need a thinner blade for your saw.

Finally, check to make sure that your feed pressure is even on both sides as you cut through material with varying thicknesses.

Problem: Why Is My Scroll Saw Shaking

Cause: Scroll saws vibrate because of their reciprocating blade movement.

Solution and Tips:

There are a few things you can do to help reduce vibration on your scroll saw.

One is to use a higher tooth count blade. This will create less vibration than using a lower tooth count blade.

You can also try using a dampening agent such as wax or cutting oil to help reduce the amount of vibration.

CHECK THE COUNTERWEIGHT

Another thing you can do to help reduce vibration is to check the counterweight.

The counterweight helps keep the saw blade in position and reduces vibration.

If your scroll saw doesn’t have a counterweight, you can make one by using a piece of metal or wood that is about five pounds.

USE A MOUNTING BOARD

If you are still having problems with vibration, you can try using a mounting board.

A mounting board is a piece of wood that is attached to the saw table and helps keep the workpiece in place.

This will help reduce vibration and make your cuts more accurate.

PURCHASE A SHOCK ABSORBER

A shock absorber is a device that attaches to the back of the scroll saw and helps reduce vibration.

A shock absorber really comes in handy if you are cutting aluminum or other hard materials because it reduces vibration even more than using a mounting board.

CHECK THE BLADE GUIDES

Another way to reduce vibration on your scroll saw is by checking the blade guides.

Check to make sure that the blade guides are parallel with the saw blade. If they are not, it could cause your scroll saw to shake or vibrate while you are cutting.

You can adjust the blade guides, so they are parallel with the saw blade.

Problem: Overheating Dilemmas

Cause: Your scroll saw’s blade is probably overheating due to a lack of proper ventilation.

Solution and Tips: One method you can try to reduce the heat on your blade is by spraying it with a cooling spray.

You should also make sure that your saw does not overheat, which can cause damage to your tool or even pose a safety hazard for you.

Make sure the ventilation system on your scroll saw is not blocked by dust or debris and that fresh air is being drawn in from the side.

Can I use 8 dado blades on 10 table saws?


If you are thinking about whether or not you should use an 8-inch dado blade on a 10-inch table saw. Then the answer is very simple.

Yes, you can use it.

It all comes down to the arbor hole your table saw has if the arbor holes of your table saw and the dado blades are of the same diameter.

Then you can install an 8-inch dado blade that will give you the deeper cuts of 1 ½ inch deep, this level of deepness is usually get from a 10-inch dado blade.

Most people seem worried about choosing the right size of dado blades, mainly when it comes to performing deep dado cuts.

And I noticed one thing that is common among many people who face problems in installing an 8-inch blade, which is either their table saw does not accept dado blades or in some cases they don’t check the arbor’s diameter carefully.

Other than this there is nothing to worry about.

If you want to know more about the benefits of an 8-inch dado blade, read on to explore more.

Why should use 8 dado blades on 10 table saws?

From the many different sizes in dado blades, 4-inches, 6-inches, 8-inches, 10-inches, the 8-inch is the most common that you will see in every carpenter’s toolbox. This is not without reason.

There are some advantages of using an 8-inch dado blade over a 10-inch.

First of all, you will spend less on small-sized dado blades compared to large-sized ones.

Aside from the pricing talk, the second biggest advantage with an an-inch dado blade is that majority of table saws have sufficient power to rotate it, small in size also means they are less heavier than larger ones.

With that said, a table saw will have to put more power on running a-10 inch dado blade to get 1 ½ deep cuts.

Whereas the same sized cuts you would easily get from an 8-inch dado blade.

 If you replace a 8-inch dado blade with your 10-inch table saw blades while the motor power is the same.

At that moment, there is a high probability you would end up heating your table saw badly due to too much power consumption.

Can I Install an 8-inch dado blade on a 10-inch table saw?

Stacks of dadoes consist of two outer blades, these blades have a number of teeth and are usually inscribed on one side.

Whenever I have installed a Dado stack, I have placed the writing side toward the outside.

Install the outside blades of your Dado Stack according to the instructions.

A chipper blade has between 2 and 4 teeth and is available in different widths depending on the brand.

If you install these blades, you will be able to adjust the width of the cut yourself.

There are little rings called spacers that you can use to adjust the width of your cut.

It is usually expected that a dado stack will feature spacers of various widths.

Following the steps to install dado blades.

Step.1 Removing saw Guard.

Begin with removing off the saw guard, but before that make you unplug your table saw; safety comes first.

Step. 2 Remove Screw

Remove screw

Now the remove the washer to untighten your current blades.

Keep your hand below while removing that off so that it would not drop inside the machine that could damage internal parts.

Step. 3 Remove Blade Guard

Remove blade guard

Depending upon your table saw brand if you see this type of elbow that is for securing the blade you might need to remove it also. 

Step.4 Read instructions

Read instructions on Thickness

Now before you install the dado blade, there would be some instructions on the thickness and how to use the shippers and spaces.

Read it carefully so you could end getting the desired thick-cut.

Step. 5 Install Dado Blade

First, place the 8-inch blade and then add shipper next to.

You can add more than one shipper depending you think you want to cut. Also, use spacers for accuracy.

Step.6 Cover the blade

In the last step, you might not able to cover the blade after installing them.

It could be due to the dado blade’s thickness, at this point, you will need to buy that steel cover with a wider gap.

Check the arbor size of an 8-inch blade

Always pay some extra attention to the arbor hole size before making your purchase.

A little inaccurate measurement can result in a loss.

Secondly, don’t save your money on buying a cheaper one since they are poorly manufactured and can break apart when exposing to high power.

The arbor hole size of your saw must be included in the stacked dado blade set you purchase.

In order to fit the blade on a table saw or radial arm saw, the saw is equipped with a 5/8-inch arbor. 

The most common exception is when a saw or blade set lacks an arbor hole or has an arbor hole smaller than 5/8 inches.

It is simply impossible to balance a blade properly if the arbor hole is too large.

The opposite is also true:

if you find that your blade set’s arbor hole is too small, do not drill out the arbor hole as you may not only damage the balance of the blade but also alter its temper.

Check the Arbor Length of the blade

Not just the arbor’s diameter size you should also look for the right length.

The more the length the more you can install washers that simply means, the dado blades will remain to tighten. 

Many people avoid installing washers at times when they want to add more dado blades and shippers, due to the short arbor’s length they trade the space with more shippers.

That’s not recommended at all, no matter how safe and tightly the blades hold there, a washer is the most important thing to add.

In general, there is a rule of thumb here: the blade must fit on with the washer (never omit the washer), and the nut-so the arbor is at least a little bit longer than the nut. Hence, the nut needs to be fully threaded onto the arbor plus a bit more. The nut can come loose if the arbor is not threaded completely onto the nut.

Is miter gauge the same as rip fence?


Should you Use a Rip Fence or a Miter Gauge on a Table Saw?

When it comes to woodworking, two essential tools for making accurate cuts on a table saw are the miter gauge and rip fence.

While both serve a similar purpose, they have distinct features that make them unique.

In this article, we’ll explore the differences and similarities between these two tools, so you can determine when to use each one for your woodworking projects.

Miter Gauge:

A miter gauge is a tool used to guide wood through a table saw at a specific angle.

It’s designed to help you make precise crosscuts and angled cuts, such as miter cuts and bevel cuts.

The miter gauge typically comes with a scale that allows you to adjust the angle of the cut accurately.

You can also adjust the gauge’s fence, which is a straight edge that runs perpendicular to the blade and helps keep the wood straight while cutting.

Rip Fence:

A rip fence is a tool used to guide wood through a table saw in a straight line parallel to the blade.

It’s designed to help you make accurate rip cuts, which are cuts made along the length of the wood.

The rip fence usually consists of a long metal bar that runs parallel to the blade and is attached to the table saw.

The user can adjust the distance between the fence and the blade to make precise cuts.

Differences between Miter Gauge and Rip Fence:

The primary difference between a miter gauge and rip fence is the direction of the cut they guide.

A miter gauge is used to make angled and crosscuts, while a rip fence is used to make straight rip cuts.

Another difference is that a miter gauge allows you to adjust the angle of the cut, while a rip fence only allows you to adjust the distance between the blade and fence.

Similarities between Miter Gauge and Rip Fence:

Despite their differences, a miter gauge and rip fence have some similarities.

Both tools are used to guide wood through a table saw, making precise cuts.

They also help ensure the safety of the user by keeping the wood straight and preventing it from moving while cutting.

5 Popular Types of wood finishes


Types of wood finish

So basically, we have two types: one creates a layer, second does not create a layer rather gets into the wood grains.

But there are too many finishes on the market to make you lost.

Different types of wood finishes offer different benefits to the owner.

When deciding what type of finish you want, it’s important to consider how the finish will be used and where it will be installed. 

For example, if your furniture is going in a high-traffic area with kids who are always spilling stuff on them.

Then you would probably want a durable protective coating like polyurethane or lacquer instead of an oil or water-based finish that can easily scrape off when touched.

It’s important to have a basic understanding of the finishes you’re going to apply.

Not only does it add a final coat of the desired color, but it is also one of the biggest factors that can increase durability.

Type of wood finishes

1. Varnish

Varnish is a type of finish that creates an extremely durable and water-resistant layer on top of your wood. 

Unlike other types of finishes, it doesn’t penetrate the surface as deeply, which means you can use it on any type or color (unlike stain).

Varnish is best used on projects where the wood will be exposed to high levels of wear and tear. 

It acts as a protective coat against scuffs, scratches, stains, water damage, and more making it great for cabinets or furniture which are frequently touched with hands. 

Applying varnish also helps create a finish that produces less friction when surfaces rub against one another.

Pros

  • it’s a long-lasting finish. 
  • It protects against damage from water, oil, alcohol, etc. 
  • Helps maintain the natural beauty of your wood flooring for years to come!
  • It makes cleaning up spills quick and easy because it doesn’t stain or absorb liquids. Just wipe with a dry cloth to remove any debris that may have built up over the years.
  • Lasts longer than other finishes (ex. paint)
  • Can be redone multiple times without losing effectiveness

Cons

  • Varnish finishes are not very durable; they can chip or peel off easily.
  • Because varnish finishes dry quickly and form a thick coat, some areas of the wood may have thicker coats than others.
  • Varnish finishes are not highly resistant to scratches and water. When sharp objects are in contact with wood finish surfaces, they can easily damage or mar them. The wear and tear caused by outdoor furniture and flooring like kitchens and bathrooms make varnish a poor choice.

Drying time

On average, natural varnish takes 24 hours to dry, while water-based varnish and polyurethane usually take less time. Dampness or wet and cold weather slows drying, so it’s recommended that you wait a bit longer than 24 hours to let the applied coat be fully cured, before applying the second coat. 

2. Oil Finish

Oil finishes are easy to apply, provide great protection for wood surfaces, and have a natural sheen that makes the grain pop.

They’re perfect for restoring old wood pieces or for staining new ones.  

The oil finish is made of many different components among which there are linseed oil, tung oil, soya bean oil, and polyurethane.

It can darken the wood’s color, which makes it excellent for use on oak pieces. 

Oil finishes can provide a protective barrier that slows down water penetration into the wood.  

In other words, if you’re looking to have a surface that isn’t susceptible to water damage, an oil finish is the way to go.

Pros

You can choose between a natural or colored finish depending on the project’s needs.

They are water-resistant with good stain resistance, so they guard against coffee spills, red wine stains, and heat.

Oil finishes are safe to use in the home and do not emit harmful fumes.

Cons

The only downside with using Oil finishes is that it penetrates the wood surface and leaves no protective finish on the top of the wood. So the surface is more prone to get scratches when it comes into contact with nearby surfaces. 

Drying time

Oil finishes can take days to be cured. Due to the fact that oil penetrates the wood grain. Normally, 3-5 days are considered good as long as the dumbness is not the factor of concern. 

3. Lacquer

A lacquer finish is very popular for furniture and other wooden projects, and an exceptionally easy-to-apply coating that creates a hard, smooth film with no brush or roller marks. 

This finish typically comes in an aerosol spray and is available in both matte and gloss finishes

It is a popular protective coating for furniture and other wooden projects.

Lacquer is made from nitrocellulose, a derivative of cotton or wood pulp that, when combined with plasticizers and solvents, forms cellulose acetate. 

This liquid mixture is sprayed on the wood surface under high pressure to produce a smooth, durable top coat that’s resistant to stains.

Lacquer can also be used to give a glossy sheen to the surface of painted wood or other surfaces such as metal. 

It is generally applied in three coats, although some brands may require more for optimal results.

Pros

  • It provides a high gloss finish
  • It is water, alcohol, and acid-proof
  • It provides good protection against scratches and marks
  • It has a beautiful finish
  • When dry it can be easily polished with polishing wax to restore the sheen of the project

Cons

  • No protection against scratches on the top layer of the piece.
  • Have to seal your entire piece if you are working with different primers or stains, it’s not possible to put lacquer over any other type of stain or primer.
  • You have to buy a special type of brush for the finish, most often they are called “one stroke” brushes. 
  • The surface is extremely smooth and shiny, there is no grain showing at all.
  • It has to dry under a fan or heat gun otherwise you will get ugly bubbles on your piece,

Drying time

The length of time required for lacquer paint to cure depends on the grade. 

A faster drying formula, known as hard lacquers or fast-drying lacquers, can be achieved by using a thicker coat that has more solids in it. These take only 10 to 30 minutes to dry under normal conditions. 

However, you must wait at least 24 hours before applying another coat over fast-drying lacquer. 

The longer curing time of regular, or soft, lacquers makes them a better choice where you might need to apply multiple coats in one day.

4. Wood Dye

Dye is a pigment dissolved in a solvent, like mineral spirit, alcohol, or water. Their workarounds are as similar as dying clothes. 

In simple terms, you can give any color of your choice to your wooden set of furniture by mixing the dying with the color particles. 

This type of wood finish does not fully penetrate a wooden surface. To some extent, they do actually. 

The basic idea of dying wood is to give a color to a wood surface that is not thick as paint and does not create a hard-thick layer.

Pros

  • It’s easier to apply.
  • It changes the color, any color you wish.
  • It keeps the wood grains from appearing on the surface.

Cons

  • Not very protective.
  • Water can easily damage the surface, unlike oil stain finishes they are poor to resist water. 
  • After dying wood, you will need to protect it by applying any protective finish.

Drying time.

These are faster-drying finishes, requiring only 1-2 hours to completely get cured and to be used.

5. Wax

A coat of wax can be a wood finish for anyone looking for a short-term solution and that’s also in a hurry and the easiest way.

Use a rag, put some wax onto the surface and apply it to the wooden project that needed to be protected. This type of finish can also add a beautiful, glossy coat. 

There are three types of waxes: liquid, solid and stick. Different types of wax are used for finishing wood such as vegetable, animal, and mineral waxes, and they are specially treated to make them as odorless as possible. 

Although a coat of wax cannot do any wonders as a wood finish, it can provide a little protection against scratches and wear as it creates a thick layer on the surface and doesn’t penetrate into the wood grains.

Pros

  • Easy to be applied.
  • Cheap.
  • Adds a thick layer, which can protect from scratches.

Cons

  • Not suitable for long-term wood projects.
  • Can get dust over time.
  • Don’t give a so-called nice-looking surface.
  • After it dries, the wax becomes dull rather than shiny.

Drying time

Generally, waxes on wood dry within minutes, 5 to 10 minutes are enough, though you might have to wait for up to 30 minutes for it to dry completely. 

What happens if you paint wood without a primer?


paint without primer

When it comes to painting a wooden surface, the first question that comes to your mind is whether you should use a primer first.

You’ll definitely have to put extra effort into it.

If you skip priming before painting. Here’s what can happen:

The absence of primers on woods like pinewood also means that no coat is applied to press wood grains.

As such, when you directly paint on bare woods. Surface grains are most likely to be visible.

So that the color coat would not last long because the particles will not adhere strongly to the surface, but rather become enmeshed in the grains.

Why should you apply a primer before paiting?

The following are reasons why primer is usually applied to surfaces before painting.

Primers give smooth end results by filling the open pores of a wood surface. Hold up paint well, provide longevity, keep the surface withstand in a harsh environment, also reduce the number of coats to be applied.

If you paint wood without a primer, what happens?

If you don’t want to use primer in your project, you might end up having a few problems. 

The causes of skipping primer should be known to you.

Here are the possible downsides of not using primers.

You’ll end up with a bad-looking painted surface.

Without a primer anything you are painting using color, the surface will expose on top.

It happens the most in cases when you are trying to apply a light color on a darker surface.

The surface will be exposed once the paint layer has dried, creating an unattractive effect.

To obtain the desired color, additional coats are necessary.

Not applying a primer’s coat would not save you money.

The fact is, you will have to coat twice or three times the paint color to look nice and smooth since the surface will become exposed as soon as the paint dries.

Color wouldn’t adhere to surfaces better.

There is a good chance that the paint is not going to hold up for long.

It may stick, but some areas with a thin layer of oil or grease will have problems sticking. As time goes on, it will become clear to observe. 

Even if the bond appears good after the first coat, the peel-off may be an issue down the road.

You will face this issue more clearly if your project has an exterior.

You will face problems caused by dust particles.

If you don’t prime it first, the bare wood surface gets a little messy in a place that wasn’t totally clean, and some of that paint gets contaminated with gunk.

When is it okay to not apply primer?

If you are going to paint an old-wooden piece that will not be used for a long period of time.

You have prepared your mind that the thing to be painted does not have to hold paint color well, which means you will cope with a mediocre result.

In these circumstances, omitting primer is okay, and you can save time by skipping it.

Secondly, using only a color coat is perfectly fine, if the project you are going to paint has been painted with a similar color already you’re about to apply.

It’s likely you will achieve good results even if you skip the priming part, given other factors the material’s surface is evenly balanced, given its indoor location.

What does a primer’s coat do on a wood?

A primer does more than just give you an evenly balanced smooth surface. It does many things. We’ve listed them below.

  • Primers are primarily used to provide a smooth surface for a final coating. 
  • A solids-rich primer prevents wood from cracking and makes a smooth finish coat possible by filling in wood grains. 
  • Primers help the final coat to withstand harsh weather effects such as direct sunlight effects and humid weather.
  • Primers have more adhesive properties than paint colors, which establish a good bond between the wood surface and the paint color: allow the paint to adhere to the surfaces better. 
  • Primer has stain-blocking properties, which becomes especially crucial when painting knotty pine.

Primer may be required at times.

In order to achieve a nice-looking end result, a primer’s coat is all you need. It comes in handy when you are painting a natural bare wood for example a pinewood, where you do not want wood grains to be apparent, but rather you are aiming for a perfectly smooth finish. You should apply primer first.

A secondary purpose is to ensure the paint does not flake off too early is also addressed as well.

Types of primers that work well on wood.

The market with primers today offers dozens of different types, each of which serves a different purpose and works best with a different type of material. 

Mainly there are two types readily found in primers.

Oil-based primer: These primers are made of using oil, take a long time in drying, and curing time is about 24 hours. They are thick, therefore, projects requiring filling pores are best suited with these types.

Furthermore, unlike water-based primers, they don’t raise the grain of wood surfaces. Which makes achieving smooth results difficult when they occur.

Latex priming: These sort of primers although have a fast drying time, but when it comes to providing protection, they are not as effective as oil-based primers. It also raises the grain of the wood because of its water-based property

How to Prime

If this is bare wood, you have been advised to first sand the surface with a light coarse grit, usually something between 180 to 220. Clean the surface as you finish sanding, and make sure there are no longer any dust particles on the surface. Now depending upon which primer you chose, apply the first coat and let it get dried and cured for the next 24 hours.

If you are painting a light color on a darker color, then you will have to apply two or three coats of primer, never forget to give them 24 hours curing time.

Once your priming is done, sand again with a light grit coarse, 220 grit is recommended for getting rid of grains that have risen to the surface. Now keep the project aside for a week or some days to let the primer gets absorbed all the way to the surface.

After the final steps come down, the coloring part. Depending on the size of the area, you can use a paintbrush, a roller, or even a spy gun to complete the colored job quickly.

types of primers for (wood, metal, and otehr)


To make your painting job last longer the primary layer which is basically a layer of a primer plays an important role. 

But there are so many types of primers available, which one should I use for my painting project? Let’s find out.

Primers differ in their properties, each has specific uses, pros, and cons and demands a certain surface to better adhere to. Not familiarizing yourself with them will put you at a greater disadvantage.

With that said, regardless of the surface, you’re going to put primer on, metal, concrete, drywall, wood, etc.

Understanding them better will give you an advantage in the painting process.

Since types of surfaces demand certain primers be applied onto and skip priming is not advisable because the results will be unattractive. 

You can find out more about what happens when you skip priming?

In this blog post, I’m going to review the types of primers available today and will also mention which surfaces they are designed to be applied onto. Let’s get started.

What are some types of primers? 

But first, here are the types of primers.

Oil-based Primer- 

An oil-based primer has oil as the main agent and is better adhered to oil-based paints but other paints can be applied onto it, such as latex or water-based paints.

Advantages of oil-based primers

  • Good water-resistant ability.
  • Highly-protective
  • Latex-based paints are compatible.
  • Good Blocking stainers.
  • Used for indoor or outdoor projects.
  • Ideal for bare wood to stop bad tannin’s bleeding effects.
  • Are Easy to clean off.

Disadvantages of oil-based primers

  • Contain High VOC (Volatile organic compounds)
  • Hard to remove off of a surface.
  • Are prone to become brittle when exposed to sunlight for a long period.
  • Have a longer drying time of about 6-8hours.

Latex-based Primer- 

They are basically water-based, use water as the base. They come in handy when preparing surfaces other than wood such as unfinished drywall made of bricks or concrete, cost less, and offer a faster drying time.

Advantages of latex-based primers

  • Cost-effective.
  • Have a quicker drying time.
  • Are easy to apply. 
  • Ideal for priming drywalls, masonry, as well on hardwoods.
  • Contain low or No VOC, which is good for health.
  • Cleaning them off from the surface is easy.
  • Less susceptible to getting cracks when exposed to direct sunlight.

Disadvantages of latex-based primers

  • Over bare woods, they raise the grains due to water.
  • Lack in providing a protective coat to block stains.
  • Create a weak bond with oil-based paints.

Shellac Primer- 

They are also called stain-blocking primers, beetles are used in their production.  For painting over problematic old varnishes, stains, plastic, oil-based paint, metal, and ceramic tile, these are better suited to use as a stain-blocking primer. 

Advantages of shellac primers

  • Fast-drying
  • Compatible with oil and water-based paints.
  • Stain blocking capabilities.
  • Suitable for wooden surfaces, provide a protective coat to stop tannins.
  • Effective for in or outdoor applications.

Disadvantages of shellac primers

  • Extremely high VOC primers.
  • Not durable as others.
  • Costly.
  • Prone to get cracked.

Where to use which primer

I’ve mentioned below some surfaces where we need to apply primers beforehand painting.

Surface Primer to use
Bare woodTo make a porous surface sealable, use an oil-based or latex primer.
DrywallFor smooth, even surfaces, prime drywall with a latex primer rather than with an oil-based primer.
Stain-prone surfacesA stain-blocking shellac primer is recommended for stained wood, bare wood with high tannin content that is prone to bleeding, walls that have smoke or water stains, and cabinets that are coated with grease.
Painted woodPriming over painted wood showing chalking is usually a good idea with an oil-based primer. or chipping; as it dries, it will become denser, smoother, and less likely to have imperfections.
MetalTo prevent the formation of rust on metals such as aluminum, use an oil-based primer, which is resistant to rust formation.
Glossy surfacesEspecially when the surface is glossy like glass, plastic, or tile, bonding primer is a good choice to apply over them.

Best primers

KILZ Original Interior Oil-Based Primer/Sealer– BEST FOR WOOD

Photo: amazon.com

Kitchen cabinets, bathroom vanities, or frequently used items like bar stools are especially suitable for the coat of this primer.

 This quart-sized container covers between 300 and 400 sq. ft area. It can be top-coated with latex or oil-based finishes after it gets fuller sired to the touch.

With its oil-based formula and tintable appearance, It primer for Kilz Original prevents water-based stains and odors like smoke.

Additionally, KILZ Original is also appropriate to be applied on drywall, plaster, masonry, brick, metal, and glossy surfaces like tile. 

Rust-Oleum Protective Enamel– BEST FOR METAL

The Best Paint Primer Option: Rust-Oleum Protective Enamel

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A clean metal primer from Rust-Oleum is available in half-pint containers to cover a maximum area of 55 square feet, is re-coatable in two hours, and must be painted over with an oil-based paint. 

Use this interior/exterior oil-based primer to prevent rust from forming on bare, painted, or lightly rusted metal. 

Despite its smooth and even formula, this primer adheres well to clean metal surfaces (and to less-than-perfect surfaces too).

Rust-Oleum Zinsser Bulls Eye 1-2-3 Primer– Best for all

The Best Paint Primer Option: Rust-Oleum Zinsser Bulls Eye 1-2-3 Primer

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Water-based formula repels solvent-based stains (like grease) and resists mildew and peeling and lasts up to 100 square feet (one wall 10 feet wide and 10 feet tall). 

Faster drying of this primer allows a second coat to be applied in an hour with latex-based or oil-based topcoats.

Applied to walls, furniture, fences, and other interiors/exterior surfaces, this versatile, tintable latex primer adheres as strongly to drywall as it does to wood, concrete, masonry, metal, and glossy surfaces like tile. 

KILZ Adhesion High-Bonding Latex Primer/Sealer– BEST FOR GLOSSY SURFACES

The Best Paint Primer Option: KILZ Adhesion High-Bonding Latex Primer Sealer

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 It comes in one-gallon cans that can cover 300 square feet, dries in one hour, and provides a good base for either latex- or oil-based topcoats.

The next time you’re considering painting a tile backsplash, a lacquer chair, or your outdated gutters, this tintable latex primer can handle a variety of surfaces with its ability to adhere to glass, plastic, tile, Formica, vinyl, glazed brick, metal, and more.