The Best Brush For Applying Polyurethane [Reviews/Buy Guide]

Table of Contents

Polyurethane is a popular finish for furniture, flooring, and other wooden items. It is durable, long-lasting, and provides a beautiful glossy finish. However, the quality of the final finish depends on the tool used to apply the polyurethane. This is why choosing the best brush for applying polyurethane is crucial.

The best brush for applying polyurethane depends on the type of surface you are working with. From furniture to flooring, the right brush can make a big difference in the quality of the final finish. Natural bristle brushes are great for large surfaces like furniture, cabinets, and floors. The natural bristles are soft enough not to scratch the surface but tough enough to get into all the nooks and crannies. They also have excellent paint retention so they won’t lose their shape over time.

Summary of The Best Brushes For Applying Polyurethane

Purdy 144402620 Syntox Series Flat Trim Paint Brush, 2 inch
Wooster Brush 5220-3 Paintbrush, 3 Inch
Minwax 427320008 Polycrylic Wood Stain Brush, 2”, White
Pro Grade - Paint Brushes - 6 Pack Variety Angle Paint Brushes
Bates Paint Brushes - 4 Pack, Treated Wood Handle, Paint Brush, Paint Brushes Set, Professional Brush Set, Trim Paint Brush, Paintbrush, Small Paint Brush, Stain Brush
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
Purdy 144402620 Syntox Series Flat Trim Paint Brush, 2 inch
Wooster Brush 5220-3 Paintbrush, 3 Inch
Minwax 427320008 Polycrylic Wood Stain Brush, 2”, White
Pro Grade - Paint Brushes - 6 Pack Variety Angle Paint Brushes
Bates Paint Brushes - 4 Pack, Treated Wood Handle, Paint Brush, Paint Brushes Set, Professional Brush Set, Trim Paint Brush, Paintbrush, Small Paint Brush, Stain Brush
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
$17.74
$10.49
$8.07
$15.99
$8.65
$6.99
Purdy 144402620 Syntox Series Flat Trim Paint Brush, 2 inch
Purdy 144402620 Syntox Series Flat Trim Paint Brush, 2 inch
$17.74
Wooster Brush 5220-3 Paintbrush, 3 Inch
Wooster Brush 5220-3 Paintbrush, 3 Inch
$10.49
Minwax 427320008 Polycrylic Wood Stain Brush, 2”, White
Minwax 427320008 Polycrylic Wood Stain Brush, 2”, White
$8.07
Pro Grade - Paint Brushes - 6 Pack Variety Angle Paint Brushes
Pro Grade - Paint Brushes - 6 Pack Variety Angle Paint Brushes
$15.99
Bates Paint Brushes - 4 Pack, Treated Wood Handle, Paint Brush, Paint Brushes Set, Professional Brush Set, Trim Paint Brush, Paintbrush, Small Paint Brush, Stain Brush
Bates Paint Brushes - 4 Pack, Treated Wood Handle, Paint Brush, Paint Brushes Set, Professional Brush Set, Trim Paint Brush, Paintbrush, Small Paint Brush, Stain Brush
$8.65
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
$6.99

Factors To Consider When Buying a Brush for Applying Polyurethane

There are a few factors you need to consider when purchasing a brush for applying polyurethane.

Type of Brush

When it comes to choosing a brush for applying polyurethane, you have two options: natural and synthetic. Natural brushes are made with animal hair and are ideal for use with oil-based polyurethane. Synthetic brushes, on the other hand, are made with nylon or polyester fibers and are ideal for use with water-based polyurethane.

Another important consideration when choosing a brush is the shape. There are two basic shapes: flat and round. Flat brushes are best for large, flat surfaces, while round brushes are ideal for trim work, such as edging and corners.

Brush Size

The size of the brush you choose will depend on the size of the surface you are working on. A larger brush is best for large surfaces, while a smaller brush is ideal for trim work. It’s important to choose the right size brush to ensure an even and consistent application of polyurethane.

Bristle Quality

The quality of the bristles is another important factor to consider when choosing a brush for applying polyurethane. High-quality bristles will hold their shape better and provide a smoother finish. Poor-quality bristles may shed or leave brush marks, ruining the final finish.

Brush Style

There are two basic styles of brushes: single and double. Single brushes have a single row of bristles, while double brushes have two rows of bristles. Double brushes are ideal for use with thicker polyurethane and provide a smoother finish.

Handle Comfort

It’s important to choose a brush with a comfortable handle. You will be using the brush for an extended period of time, so it’s important to choose a brush with a handle that is easy to grip and won’t cause discomfort during use.

Related Post: How To Get Rid Of Polyurethane Smell On Furniture And Floor

The Best Brush For Applying Polyurethane; Reviews of the 8 Best

When it comes to choosing the best brush for applying polyurethane, there is no one-size-fits-all answer.

Here are eight of the best brushes for applying polyurethane, based on customer reviews:

1. Purdy 144402620 Syntox Series Flat Trim Paint Brush, 2 inch

Purdy 144402620 Syntox Series Flat Trim Paint Brush, 2 inch
  • PURDY SYNTOX PAINT BRUSHES - Purdy Syntox brushes are made with soft, synthetic bristles to provide a mirror-like finish. These paint applicators will help you get the job done right the first time.
  • DESIGNED FOR ALL STAINS - Designed to be long lasting and durable, these painting tools are designed to work best with latex and oil-based paints, stains, clears, polyurethanes and varnishes.
  • EXTRA SOFT BRISTLES - With lightweight and moisture-wicking alderwood handles, these high-quality painting brushes make every painting job more efficient. Perfect for the DIY-er or the professional painter.
  • IDEAL USES - Handcrafted in the USA with global materials, this Purdy paint brush is ideal for interior surfaces like wood floors, cabinets, doors and trim.
  • PURDY - From the first Purdy brush built in 1925 to the wide range of painting supplies and products we make today, one thing has stayed true - our dedication to craft and quality. And it's still at the heart of every tool we make.

Product Description:

Purdy’s 144402620 Syntox Series Flat Trim Paint Brush is an outstanding brush that can handle both water and solvent based clear finishes. The solid round tapered filaments are 20% softer than Ox-Hair, making the brushes incredibly comfortable to use while still providing an ultra-smooth finish. Plus, the Dupont™ construction makes these brushes incredibly durable – they’ll last up to five times longer than traditional Ox-Hair brushes.

Pros:

  • Even coverage
  • Soft bristles
  • Tough brush

Cons:

  • Only available in 2 inch

Buy On Amazon

2. Wooster Brush 5220-3 Paintbrush, 3 Inch

Sale
Wooster Brush 5220-3 Paintbrush, 3 Inch
  • White & silver CT polyester with chisel trim
  • Very soft formulation, feather stroke
  • Stainless steel ferrule
  • Hardwood handle

Product Description:

The Wooster Brush Company has been manufacturing innovative, high-performance painting tools right out of Wooster, Ohio USA since 1851. Our trade names include Ultra/Pro, Advantage, Yachtsman, Shortcut paintbrushes; Super/Fab, Super Doo-Z roller covers; Sherlock frames and extension poles; Jumbo-Koter minirollers; and Prep Crew surface prep tools. You can feel confident knowing Wooster has the experience and expertise to provide you with the best painting tools available.

Our Silver Tip brushes are made using our exclusive formula of CT (chemically tipped) polyester. This filament is very thin, flexible, and soft, which eliminates brush marks. Silver Tip brushes have excellent leveling and smoothing properties with all paints, but are especially suited for applying enamels to metal, varnish or polyurethane on wood, and lighter or thinner water-based coatings.

Pros:

  • Durable bristles
  • Holds a lot of coating material
  • Flagged on the ends for even spreading

Cons:

  • Bristles may fall off over time

Buy On Amazon

Related Post: Does Polyurethane Go Bad? How to Tell and What to Do About It

3. Minwax 427320008 Polycrylic Wood Stain Brush, 2”, White

Sale
Minwax 427320008 Polycrylic Wood Stain Brush, 2”, White
  • WOOD STAIN BRUSH – This 2” wood staining brush is a fine craft, blend of nylon and polyester designed for water-based stains and finishes. Using this high-quality synthetic bristle brush provides a beautiful, even finish.
  • SMOOTH, EVEN FINISH – The soft application design and synthetic bristles promote a smooth finish of wood stain and protective or clear finishes for your wood projects.
  • USE WITH – This 2” wood stain brush is for use for quart size cans of water-based stains and finishes. Rinse well after use, and clean with soap and water.
  • NATURAL HANDLE – This water clean up brush features a stainless steel ferrule and natural hardwood handle.
  • A BRAND YOU CAN TRUST – Minwax is America’s leading brand of wood finishing and wood care projects. Since 1904, we have been inspiring consumers to Keep on Finishing. We offer consumers a complete line of products to meet every wood finishing need.

Product Description:

Minwax 427320008 Polycrylic Wood Stain Brush 2” synthetic bristle brush is perfect for applying water-based stains and finishes, providing a smooth, even finish. The soft application design and synthetic bristles are also ideal for promoting a beautiful finish on your wood projects. Use this brush with quart size cans of water-based stains and finishes, and rinse well after use. Clean with soap and water to keep it looking its best. The natural hardwood handle is also stainless-steel ferrule-free, making it easy to clean. Trust Minwax – America’s leading brand of wood finishing and wood care products – to help you achieve beautiful results with your next wood project.

Pros:

  • Durable bristles
  • Holds a lot of coating material
  • Flagged on the ends for even spreading

Cons:

  • Only available in a small size

Buy On Amazon

4. Pro Grade – Paint Brushes – 6 Pack Variety Angle Paint Brushes

Pro Grade - Paint Brushes - 6 Pack Variety Angle Paint Brushes
  • 6-pack of angle paint brushes includes 2 each 1.5" and 2", 1 each 2.5" and 3".
  • These angle sash painting brushes make it easier to do all your cut-in work on walls and trim.
  • A thick synthetic filament blend holds more paint for saving time and fewer streaks in the finish.
  • Each brush has a durable wooden comfort grip handle that makes each job easier and smoother.
  • These high-quality brushes for painting are long-lasting and made to be washed and reused.

Product Description:

The pack includes two each of 1.5″ and 2″, 1 each of 2.5″ and 3″ brushes, so you can choose the size that’s best for your project. The synthetic filament blend is designed to hold more paint, saving you time and reducing the number of streaks in your finish. The brushes also have durable wooden comfort grip handles, making them easier to use for longer periods of time. Plus, they’re easy to wash and reuse, so you can get the most out of your investment. Whether you’re a professional painter or just doing a little home improvement on the weekend, these Pro Grade paint brushes are the perfect tool for the job.

Pros:

  • Includes six different angle brushes
  • The bristles are durable and synthetic
  • Flagged on the ends for even spreading

Cons:

  • It may not be suitable for some applications

Buy On Amazon

5. Bates Paint Brushes – 4 Pack, Treated Wood Handle, Paint Brush, Paint Brushes Set, Professional Brush Set, Trim Paint Brush, Paintbrush, Small Paint Brush, Stain Brush

Sale
Bates Paint Brushes - 4 Pack, Treated Wood Handle, Paint Brush, Paint Brushes Set, Professional Brush Set, Trim Paint Brush, Paintbrush, Small Paint Brush, Stain Brush
  • PROFESSIONAL QUALITY: 100% Satisfaction Guaranteed, Trim Paint Brush is Premium; intended to be long lasting and easy to clean. Exceptional ability to get the job done quickly with a superior finish.
  • FIT FOR COMFORT: Treated wood handle brushes are lightweight and easy to hold. A comfort that last for long tedious jobs. Handle allows for the best quality control with exceptional results.
  • THICK FILAMENTS: These synthetic filaments are designed hold more paint to save you time and give you the finish you are looking for. Filaments are durable and long-lasting.
  • AFFORDABLE: Don't waste your money on a brush that will last you a hour. These high quality brushes are money savers. The value you get in these brushes are unbelievable for the price.
  • ANYONE CAN USE: It doesn't matter whether you are a professional or a beginner, this Angle Sash Paint Brush is great for any user.

Product Description:

Bates Paint Brushes is a professional quality trim paint brush. Our 100% satisfaction guarantee ensures that you’re getting the best product possible. The trim paint brush is designed to be long lasting and easy to clean, with an exceptional ability to get the job done quickly and with superior results. Plus, the treated wood handle is lightweight and easy to hold, making it comfortable for even long, tedious jobs. And the synthetic filaments are designed to hold more paint, saving you time and giving you the finish, you’re looking for. These brushes are affordable, so you don’t have to waste your money on a brush that will only last for an hour.

Pros:

  • Includes four different brushes
  • The bristles are durable
  • It is synthetic
  • Flagged on the ends for even spreading

Cons:

It may not be suitable for some applications

Buy On Amazon

Related Post: 5 Best Polyurethane With Color in 2022, And How to Use

6. Pro Grade – Paint Brushes – 3Ea – Paint Brush Set, Nylon Bristles, Hog Hair Brushes

Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
  • Set includes 3 each of 2 inch Angle Pro Grade Home Brushes. Pro-Grade paint brushes are made with the consumer in mind from quality parts to the affordable price compared to other high quality paintbrushes.
  • The Angle sash paintbrush is perfect for cutting in walls and Flat Sash Paint Brushes are perfect for trim. Pro Grade paint brushes are designed for long lasting and to be washed and reused for all your painting projects and touch ups. NO CARDBOARD COVERS COME WITH THIS SET.
  • A thick quality synthetic filament blend is designed hold more paint to save time with less streaks and premium finish on your walls or trim. Perfect for all latex and oil base paints and stains. Thinner tip at ends provides better cutting control.
  • Heavy duty solid wood handles are designed for comfort and control. This allows the professional painter or the novice to get great results on painting walls, trim, cabinets, doors, fences, decks, touch ups and arts and crafts.
  • Pro Grade brushes are priced right to allow professional painters or the novice painter the ability to use a high quality paintbrush without breaking the bank. From the thinner tip for cutting ease to the stainless steel ferrule connected to the solid wood comfort handle you will be satisfied.

Product Description:

Pro Grade’s three-pack of Angle Pro Grade Home Brushes. Our brushes are designed with the consumer in mind, from the quality parts to the affordable price.

The Angle sash paintbrush is perfect for cutting in walls, and the Flat Sash Paint Brushes are perfect for trim. Our synthetic filament blend is designed to hold more paint, saving you time and reducing streaks. The thicker tip at the ends also provides better cutting control.

Our heavy-duty solid wood handles are designed for comfort and control, while the tone of voice is engaging and informative. Whether you’re a professional painter or just doing a bit of touch-up work, our Pro Grade paint brushes will give you the best results possible.

Pros:

  • Includes three different brushes
  • The bristles are durable
  • It is synthetic
  • Flagged on the ends for even spreading

Cons:

  • It may not be suitable for some applications

Buy On Amazon

7. Paint Brush Deck Brush for Applying Stain Paint Brush Quick Decking, Fence, Walls and Furniture Paint Application 2 Pcs 5 inch (2)

Sale
Paint Brush Deck Brush for Applying Stain Paint Brush Quick Decking, Fence, Walls and Furniture Paint Application 2 Pcs 5 inch (2)
  • For all paints and stain/ sealant. No loss of bristle. This stain brush can also be used for dusting, waterproofing, masonry and heavy-duty painting projects.A Utility Paint Brush.
  • Easily apply stain/ sealer in between planks, cracks and back-brushing, simplify your painting tasks, either on rough or on smooth surface, for exterior or indoor, thick or thin coat.

Product Description

Paint Brush Deck Brush is a quality paint brush that won’t lose bristles and can be used on various surfaces. This versatile brush can be used for all paints and stains, as well as waterproofing, masonry, and other heavy-duty painting projects. The soft bristles make it easy to apply stain or sealant in between planks, cracks, and other tight spaces, while the tough construction ensures that it can handle even the most challenging jobs.

Pros

  • Does not fade
  • Smooth finish
  • Even coverage
  • Non-absorbent bristles

Cons

  • It may not be suitable for all paints and sealers

Buy On Amazon

How to Apply Polyurethane

Tools Required to Apply Polyurethane

Minwax Fast Drying Polyurethane Protective Wood Finish, Warm Satin, 1 Quart
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
Mestool 58-AP 100 per box include 60 80 120 150 and 220 GRITS
Dura-Gold - Pure Gold Superior Tack Cloths - Tack Rags (Box of 12) - Woodworking and Painters Professional Grade - Removes Dust, Sanding Particles, Cleans Surfaces - Wax and Silicone Free, Anti-Static
Mister Rui Paint Tray, 4 Inch Paint Roller Tray, 22 Pack, Paint Tray with Liners, Small Paint Tray, Disposable Paint Tray Liners, Thickened Plastic Paint Tray Liners with Paint Roller Frame
Inspire Nitrile Exam Gloves | THE ORIGINAL Quality Stretch Nitrile, Cobalt Blue | 4.5 Gloves Disposable Latex Free Medical EMT (Large (Pack of 1000), Case Of 1000)
Minwax Fast Drying Polyurethane Protective Wood Finish, Warm Satin, 1 Quart
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
Mestool 58-AP 100 per box include 60 80 120 150 and 220 GRITS
Dura-Gold - Pure Gold Superior Tack Cloths - Tack Rags (Box of 12) - Woodworking and Painters Professional Grade - Removes Dust, Sanding Particles, Cleans Surfaces - Wax and Silicone Free, Anti-Static
Mister Rui Paint Tray, 4 Inch Paint Roller Tray, 22 Pack, Paint Tray with Liners, Small Paint Tray, Disposable Paint Tray Liners, Thickened Plastic Paint Tray Liners with Paint Roller Frame
Inspire Nitrile Exam Gloves | THE ORIGINAL Quality Stretch Nitrile, Cobalt Blue | 4.5 Gloves Disposable Latex Free Medical EMT (Large (Pack of 1000), Case Of 1000)
$14.97
$6.99
$18.99
$14.99
$20.99
$74.99
Minwax Fast Drying Polyurethane Protective Wood Finish, Warm Satin, 1 Quart
Minwax Fast Drying Polyurethane Protective Wood Finish, Warm Satin, 1 Quart
$14.97
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
Pro Grade - Paint Brushes - 3Ea - Paint Brush Set
$6.99
Mestool 58-AP 100 per box include 60 80 120 150 and 220 GRITS
Mestool 58-AP 100 per box include 60 80 120 150 and 220 GRITS
$18.99
Dura-Gold - Pure Gold Superior Tack Cloths - Tack Rags (Box of 12) - Woodworking and Painters Professional Grade - Removes Dust, Sanding Particles, Cleans Surfaces - Wax and Silicone Free, Anti-Static
Dura-Gold - Pure Gold Superior Tack Cloths - Tack Rags (Box of 12) - Woodworking and Painters Professional Grade - Removes Dust, Sanding Particles, Cleans Surfaces - Wax and Silicone Free, Anti-Static
$14.99
Mister Rui Paint Tray, 4 Inch Paint Roller Tray, 22 Pack, Paint Tray with Liners, Small Paint Tray, Disposable Paint Tray Liners, Thickened Plastic Paint Tray Liners with Paint Roller Frame
Mister Rui Paint Tray, 4 Inch Paint Roller Tray, 22 Pack, Paint Tray with Liners, Small Paint Tray, Disposable Paint Tray Liners, Thickened Plastic Paint Tray Liners with Paint Roller Frame
$20.99
Inspire Nitrile Exam Gloves | THE ORIGINAL Quality Stretch Nitrile, Cobalt Blue | 4.5 Gloves Disposable Latex Free Medical EMT (Large (Pack of 1000), Case Of 1000)
Inspire Nitrile Exam Gloves | THE ORIGINAL Quality Stretch Nitrile, Cobalt Blue | 4.5 Gloves Disposable Latex Free Medical EMT (Large (Pack of 1000), Case Of 1000)
$74.99
  • Polyurethane
  • Brush or Roller
  • Sandpaper
  • Tack cloth
  • Paint tray or container
  • Drop cloth
  • Gloves
  • Mask (optional)

The steps for applying polyurethane include:

Preparation

Start by cleaning the surface and removing any dirt, grime, or residue. Then, sand the surface with coarse sandpaper to remove any rough spots and to create a smooth surface. Use a tack cloth to remove any dust and debris from the surface. This will ensure that the polyurethane will adhere properly. Place a drop cloth around the area you will be working in to protect it from drips and spills.

Pour Polyurethane into a Container

Pour the polyurethane into a container and dip your brush into the product. If you are using a roller, load it with the product.

Apply Polyurethane to the Surface

Use the brush to apply the polyurethane to the edges and corners of the surface. Make sure to apply the product evenly and in the direction of the grain. Use the roller to apply the polyurethane to large surfaces. Roll the product in the direction of the grain, making sure to apply it evenly.

Wait for First Coat to Dry

The dry time for polyurethane can vary depending on the product you are using. Check the label for the manufacturer’s recommended dry time. Avoid Touching or Walking on the Surface: During the drying time, avoid touching or walking on the surface to prevent any damage.

Sand the Surface with Fine Sandpaper

Using fine sandpaper, gently sand the surface in the same direction as the grain. This will help to remove any bumps or rough spots in the surface and ensure that the second coat will adhere evenly. Be sure to sand gently to avoid sanding through the first coat and exposing the wood underneath.

Remove Dust and Debris with Tack Cloth

Use a tack cloth to remove any dust and debris. A tack cloth is a special type of cloth that is designed to remove fine particles and leave the surface clean and ready for the next coat of polyurethane. Simply wipe the surface with the tack cloth to remove any remaining particles and prepare the surface for the second coat.

It’s important to remember that sanding and cleaning should only be done after the first coat has dried completely and according to the manufacturer’s instructions. Sanding or cleaning the surface too soon can cause the first coat to adhere unevenly and negatively affect the final result.

Apply the Second Coat

Use a brush to apply the second coat of polyurethane to achieve the best finish that will last longer.

Tips for Using a Brush for Applying Polyurethane

Prepare the Surface

Before applying polyurethane, make sure the surface is clean, dry, and free of any debris. Sand the surface to ensure a smooth finish and remove any rough spots or imperfections.

Load the Brush

When applying polyurethane, it’s important to load the brush evenly. Dip the brush into the polyurethane, making sure to cover all the bristles, and then tap the brush against the side of the can to remove any excess.

Apply the Polyurethane

Begin by applying the polyurethane in the center of the surface and work your way out, following the grain of the wood. Make sure to apply an even and consistent coat, without leaving any drips or brush marks.

Keep a Wet Edge

When applying polyurethane, it’s important to keep a wet edge. This means continuing to apply the polyurethane without letting the wet area dry before adding more. This will help to avoid brush marks and create a smooth, even finish.

Also Check: What is polyurethane?

Maintenance of Brush for Applying Polyurethane

Cleaning the Brush

After using a brush for applying polyurethane, it’s important to clean it properly. Wash the brush in warm soapy water, rinse well, and let it dry completely before storing it.

Storing the Brush

Store the brush in a cool, dry place. Do not store the brush in direct sunlight or in a damp area. This will help to prolong the life of the brush and maintain its shape.

FAQs

Can You Use a Regular Paint Brush for Polyurethane?

No, it is not recommended to use a regular paint brush for applying polyurethane. Paint brushes are designed for use with paint, not polyurethane. Polyurethane is thicker than paint and requires a brush with sturdy bristles that can handle the thicker consistency.

What is the Best Type of Brush for Polyurethane?

The best type of brush for polyurethane depends on the type of polyurethane you are using. For oil-based polyurethane, a natural brush is best, while for water-based polyurethane, a synthetic brush is ideal.

Can You Clean and Reuse a Polyurethane Brush?

Yes, it is possible to clean and reuse a polyurethane brush. Simply wash the brush in warm soapy water, rinse well, and let it dry completely before reusing it.

How Do You Choose the Right Size Brush for Polyurethane?

The right size brush for applying polyurethane will depend on the size of the surface you are working on. A larger brush is best for large surfaces, while a smaller brush is ideal for trim work. It’s important to choose the right size brush to ensure an even and consistent application of polyurethane.

What is the Best Brush for Applying Water-Based Polyurethane?

A synthetic brush is the best brush for applying water-based polyurethane. Synthetic brushes are made with nylon or polyester fibers and are ideal for use with water-based polyurethane because they hold their shape better and provide a smoother finish.

What is the Best Brush for Applying Spar Urethane?

Spar urethane is a type of polyurethane that is used to protect outdoor wood. The best brush for applying spar urethane is a synthetic brush with a flat shape. A flat brush will provide an even and consistent application on large, flat surfaces.

Conclusion

Choosing the best brush for applying polyurethane is important for achieving a beautiful and durable finish. Consider the type of brush, size, bristle quality, handle comfort, and maintenance when choosing the right brush for you. With the right brush and proper technique, you can achieve a smooth and even finish on your next polyurethane project. We hope this article helps you find the best brush for applying polyurethane.