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The 8 Best exterior polyurethanes of 2024

Are you trying to find exterior polyurethanes among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling exterior polyurethanes on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 19 hours of research and did 65 exterior polyurethanes tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best exterior polyurethanes you can buy today

No. 1
Rust-Oleum 250041H Ultimate Spar Urethane Water Based, Quart, Gloss Finish
  • Durable, protective poly for outdoor wood surfaces such as furniture, doors, windows, fences, trim and more
  • Low odor, water based formula is easy to apply and cleans up with soap and water
  • Dries to the touch in 30 minutes and covers up to 87 sq. ft. per quart, recoat after 2 hours
  • Weather and UV resistant top coat does not yellow and protects against mold and mildew
  • Crystal clear, gloss finish creates a polished and clean look
  • Non-yellowing formula keeps your wood looking great longer
  • Outstanding UV and weather resistance
  • Low odor
  • No brush strokes
  • Extra fast drying apply 3 coats in a day
No. 2
Minwax Helmsman Water Based Spar Urethane, Quart, Gloss
  • PROTECTIVE CLEAR FINISH – Minwax Helmsman Water Based Spar Urethane is a crystal clear wood finish that is specially formulated to protect against nature’s toughest conditions.
  • EFFECTIVE YEAR ROUND – This wood varnish forms a protective barrier against rain and moisture to protect your projects and keep them looking their best. Special oils allow the finish to expand & contract with the wood as seasons and temperatures change.
  • VERSATILE – Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture and more. It’s a versatile water-based spar urethane that dries quickly and cleans up easily with warm water.
  • GLOSS FINISH – Give your wood projects a sleek finish with this gloss clear varnish. It not only protects the natural beauty of the wood, but offers a shiny, sleek sheen for a modern look. It’s ideal for use over light colored woods and stains.
  • A BRAND YOU CAN TRUST – Minwax is America’s leading brand of wood finishing and wood care products. 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.
  • Spar urethane
  • Specially formulated protective clear finish for exterior or interior wood that is exposed to sunlight, water or temperature changes
  • Contains UV blockers to reduce the sun's graying and fading effects
  • Forms a protective barrier against rain and moisture
  • Special oils allow the finish to expand and contract with the wood as seasons and temperature changes
No. 3
Rust-Oleum Varathane 242183H 1-Quart Classic Clear Oil Based Outdoor Spar 275 Voc Urethane, Satin Finish
  • Apply to outdoor wood projects
  • Expands and contracts with weather conditions
  • Protects outdoor wood from the elements
  • Easy application
  • Self-leveling and fast-drying
No. 4
Minwax Fast Drying Polyurethane Protective Wood Finish, Clear Semi-Gloss, 1 Quart
  • PROTECT WOOD SURFACES – Minwax Polyurethane Wood Finish protects interior projects like woodwork, furniture, floors and cabinets. The oil-based, clear top coat is one of the most durable coatings for wood protection against scratches, spills and more.
  • OIL-BASED DURABLE FINISH – Clear finish provides long-lasting protection and warm beauty to both finished and unfinished wood projects. Protective coating is ideal for woodwork, furniture, doors, cabinets & floors, and is available in a variety of sheens.
  • SEMI-GLOSS SHEEN – Give your wood projects a sleek finish with this semi-gloss clear varnish. It not only protects the natural beauty of the wood, but offers a long-lasting, semi-shiny, sleek sheen for a modern look.
  • FAST DRYING – Get more done with this protective poly coating. It’s a fast-drying clear coat, which allows for quick recoats after 4-6 hours, letting you get projects done faster. Be sure to apply with a high-quality natural or foam brush.
  • 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.
  • It provides long-lasting protection and beauty to interior wood surfaces such as furniture, floors, doors and cabinets
  • Its superior durability makes it ideal for use on all your wood surfaces
  • Dries fast and offers long lasting beauty on both finished and unfinished wood surfaces
No. 5
Rust-Oleum 9241 Ultimate Spar Urethane Oil Based, Quart, Gloss
  • Protects outdoor wood surfaces such as furniture, fences, railings, trim and more
  • Oil based formula provides maximum durability and allows for a more even finish
  • Dries to the touch in 2 hours with coverage up to 190 sq. ft., recoat after 8 hours
  • Weather and UV resistant formula protects the surface from graying and sun damage
  • Gloss finish creates a polished and clean look
No. 6
Rust-Oleum 250241H Ultimate Spar Urethane Water Based, Quart, Satin Finish 32 Fl Oz (Pack of 1)
  • Durable, poly for outdoor wood surfaces such as furniture, doors, windows, fences, trim and more
  • water based formula is easy to apply and cleans up with soap and water
  • Dries to the touch in 30 minutes and covers up to 87 sq. ft. per quart, recoat after 2 hours
  • supports the Weather and UV , top coat does not yellow and helps against natural elements
  • Crystal clear, satin finish provides a classic and natural look
  • Non-yellowing formula keeps your wood looking great longer
  • Outstanding UV and weather resistance
  • Low odor
  • No brush strokes
  • Extra fast drying apply 3 coats in a day
No. 7
TotalBoat-520022 - Halcyon Marine Varnish (Gloss, Pint) | Water-Based Polyurethane Wood Finish | Clear Gloss UV Protection for Interior and Outdoor Use
  • DURABLE MARINE-GRADE VARNISH cures to a hard gloss or satin finish for beautiful brightwork; for interior and exterior use on wood trim, toerails, cockpits, doors, cabinets, chairs, outdoor furniture and more - on your boat or at home
  • PROTECTS AGAINST DAMAGE FROM SUN AND WEATHER: Provides superior sun-blocking protection and maximum resistance to salt, abrasion and scratches; excellent adhesion and flexibility let wood expand & contract naturally, without cracking or peeling
  • EASY TO APPLY, EASY TO CLEAN UP: Spar urethane is easy to apply by brushing, rolling or spraying; looks milky-white at first, but cures to a clear or clear amber color, depending on formula; for a satin finish, use gloss for build coats and satin for finish coat; easy soap & water cleanup
  • FINISH VARNISH JOBS FASTER: Dries fast so you can finish faster than with traditional varnishes; apply up to 5 coats in a day, no sanding between coats; apply at least 2-4 heavy coats for interior applications; 4-6 coats for exterior applications
  • CHOOSE FINISH AND COLOR: Gloss finish comes in Clear or Amber colors; Satin finish comes in Clear only; Kit Sizes: Pint, Quart and 4 Quart; Coverage: 40-50 sq ft/pint; 80-100 sq ft/quart; NOTE: Halcyon Satin is not available in a 4 Quart kit
No. 8
Deft Defthane Interior Exterior Clear Polyurethane Satin Spray, 11.5-Ounce Aerosol
123 Consomer Reviews
Deft Defthane Interior Exterior Clear Polyurethane Satin Spray, 11.5-Ounce Aerosol
  • This product adds a great value
  • Excellent for interior and exterior wood surfaces including floors, doors, furniture cabinets and marine applications above the water line
  • A high-solids oil-based polyurethane formulated for hard use areas
  • This high solids oil based polyurethane formulated for hard use areas
  • Excellent for interior and exterior wood surfaces including floors, doors, furniture cabinets and marine applications above the water line
  • Offers 450 VOC compliant formula
  • Use on unfinished and stained wood, painted, varnished or lacquered surfaces
  • Available in satin finish and 13-ounce aerosol spray with an adjustable spray valve
SaleNo. 9
Minwax 356100000 One Coat Polyurethane, Quart, Gloss
  • DRIES IN TWO HOURS – Complete your wood projects 3x faster. Minwax One Coat Polyurethane Protective Finish is a crystal clear, protective top coat that dries in just two hours and cleans up easily with soap and water.
  • PROTECT WOOD SURFACES – The advanced formulation in this clear top coat provides the same level of durability in one coat the is comparable to three coats of a conventional polyurethane. Use it to easily protect and add beauty to your wood projects.
  • GLOSS SHEEN – Give your wood projects a sleek finish with this gloss clear varnish. It not only protects the natural beauty of the wood, but offers a shiny, sleek sheen for a modern look.
  • EASY CLEANUP – Get more done with this protective poly coating. It’s an ultra fast-drying crystal clear coat that is non-ambering, and cleans up easily with just soap and warm water.
  • 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.
No. 10
1 qt Deft DFT257 Clear Water Based Polyurethane Water-Based Interior/Exterior Polyurethane Gloss
  • Interior/Exterior Multi Use Focus
  • Greater Durability Than Oil Based Poly
  • 2 Hour Recoat
  • Water based polyurethane provides ideal protection for interior and exterior wood surfaces
  • A 100-Percent urethane water-based clear protective top coat, formulated with the latest water-based oil modified urethane technology
  • Meets or exceeds environmental regulations for voc and is low odor
  • Contains superior UV protection; providing excellent weather-resistance and durability
  • Available in gloss finish and 1-quart container
  • Water based polyurethane provides ideal protection for interior and exterior wood surfaces
  • A 100-Percent urethane water-based clear protective top coat, formulated with the latest water-based oil modified urethane technology
  • Meets or exceeds environmental regulations for voc and is low odor
  • Contains superior UV protection; providing excellent weather-resistance and durability
  • Available in gloss finish and 1-quart container
No. 11
Rust-Oleum 207008 Marine Spar Varnish, Quart, Gloss Clear
  • Ideal for use on exterior wood surfaces above the water line, including trim, railings and wood furniture
  • Oil-based formula expands and contracts with changing weather conditions
  • Dries to the touch in 2 hours and covers up to 150 sq. ft.
  • Durable coating provides excellent resistance to UV, salt and mildew
  • Crystal-clear varnish leaves a beautiful gloss finish with maximum protection
  • UV resistant
  • Salt and mildew resistant
  • Expands and contracts with changing weather conditions
  • Twice as durable as conventional wood finishes
  • This item is not for sale in Catalina Island
No. 12
TotalBoat - 409314 Gleam Marine Spar Varnish, Gloss and Satin Polyurethane Finish for Wood, Boats and Outdoor Furniture (Clear Gloss Quart)
  • CLASSIC MARINE VARNISH contains premium tung oil, phenolic resins and UV blockers for a beautiful transparent amber finish on all types of interior and exterior wood on boats, strip canoes, kayaks, outdoor wooden bar tops, garage doors, furniture and more
  • DURABLE URETHANE SPAR VARNISH with maximum UV resistance; it remains flexible after curing, and won't peel or crack when the wood expands and contracts with seasonal humidity and temperature changes
  • EASY TO APPLY BY BRUSHING, ROLLING OR SPRAYING: For a high gloss finish, apply 4-6 coats of Gleam Gloss; for a sleek satin finish, build with coats of Gleam Gloss varnish and use Gleam Satin for the final coats; Application Temp: 45-105F, 0-85% RH
  • SELF-LEVELING FINISH DRIES FAST: Recoat in 1 hr. @ 72°F; apply up to 3 coats in 1 day; if desired, thin 5-10% with TotalBoat Special Brushing Thinner 100 (brush/roller application) or 10-20% with TotalBoat Spray Thinner 101 (spray application)
  • AVAILABLE IN GLOSS OR SATIN (low-sheen), in Pint, Quart and Gallon sizes; Coverage: 360-400 sq ft/gallon; Thinner: TotalBoat Special Brushing Thinner 100 (brushing/rolling); TotalBoat Spray Thinner 101 (spraying)
No. 13
RUST-OLEUM 250081 12 oz Outdoor Clear Gloss Spray
  • Protects outdoor wood surfaces such as furniture, fences, boats, trim and more
  • Water based formula dries fast and cleans up with soap and water
  • Dries to the touch in 30 minutes with coverage up to 12 sq. ft. per can, recoat after 1 hour
  • Weather and UV resistant formula is non yellowing and protects the surface from sun damage
  • Gloss finish creates a polished and clean look
  • Non-yellowing formula keeps your wood looking great longer
  • Outstanding UV and weather resistance
  • Low odor
  • No brush strokes
  • Extra fast drying apply 3 coats in a day
SaleNo. 14
Rust-Oleum 284470 Varathane Triple Thick Polyurethane, Gloss,Quart
  • Ideal for use on all interior wood surfaces including furniture, doors, trim and more
  • One-coat coverage, water-based formula provides excellent scratch and stain resistance
  • Dries to the touch in 2 hours and covers up to 50 sq ft
  • Ultimate durability and protection
  • Gloss finish enhances the natural beauty of the wood
No. 15
Varathane 200241H Water-Based Ultimate Polyurethane, Quart, Satin Finish
  • Protects indoor wood surfaces such as furniture, windows, cabinets, trim and more
  • Water based formula dries fast and cleans up with soap and water
  • Dries to the touch in 30 minutes with coverage up to 125 sq. ft., recoat after 2 hours
  • Durable formula provides outstanding stain and scratch resistance with excellent clarity
  • Satin finish provides a classic and natural look
SaleNo. 16
Minwax Water Based Oil-Modified Polyurethane, Warm Satin, Clear, 1 Gallon
  • PROTECT WOOD SURFACES – Minwax Oil-Modified Polyurethane Wood Finish protects and adds beauty to interior projects, including woodwork, floors & more. The water-based clear top coat combines superior durability with the beauty of traditional polyurethane.
  • OIL-BASED DURABLE FINISH – Clear finish provides long-lasting protection and warm beauty to both finished and unfinished wood projects. Protective coating is ideal for woodwork, furniture, doors, cabinets & floors, and is available in a variety of sheens.
  • SATIN SHEEN – Give your wood projects a sleek finish with this satin clear varnish. It not only protects the natural beauty of the wood, but offers a soft, unique sheen for a modern, cozy and on-trend look.
  • EASY CLEANUP – Get more done with this protective poly coating. It’s an ultra fast-drying clear coat, and because it’s water-based, it has a low odor and easy cleanup with warm water.
  • 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.
  • Clear, ultra fast-drying finish that combines superior durability with the warmth and beauty of traditional polyurethane
  • It is water-based, therefore it has little odor and cleans up easily with warm water
  • It protects and adds beauty to interior wood surfaces such as furniture, cabinets, floors and doors
  • Satin Finish
  • 1 gallon size
SaleNo. 17
Deft Defthane Interior Exterior Clear Polyurethane Satin, Quart
  • This high solids oil based polyurethane is formulated for hard use areas
  • EPA Regulated: No ship to AK, CA, HI, NH
  • Excellent for interior and exterior wood surfaces including floors, doors, furniture cabinets and marine applications above the water line
  • Use on unfinished and stained wood, painted, varnished or lacquered surfaces
  • Satin Finish - one quart
No. 18
Rust-Oleum Varathane 9061H Oil-Based Ultimate Polyurethane, Half Pint, Gloss Finish
  • Protects interior wood surfaces such as furniture, cabinets, trim and doors
  • Oil based formula provides maximum durability and allows for a more even finish
  • Dries to the touch in 2 hours with coverage up to 37.5 sq. ft., recoat in 4 hours
  • Unique formula provides outstanding stain and scratch resistance with ultra fast dry time
  • Gloss finish creates a polished and clean look
No. 19
1 qt Deft DFT23 Clear Defthane Interior/Exterior Polyurethane Semi-Gloss
  • This high solids oil based polyurethane is formulated for hard use areas
  • Use on unfinished and stained wood, painted, varnished or lacquered surfaces
  • Excellent for interior and exterior wood surfaces including floors, doors, furniture cabinets and marine applications above the water line
  • Semi-Gloss Finish - One Quart
  • EPA Regulated: No shipments to AK, CA, HI, NH
No. 20
Rust-Oleum 250141H Ultimate Spar Urethane Water Based, Quart, Semi Gloss Finish
  • Durable, protective poly for outdoor wood surfaces such as appliances, doors, windows, fences, trim and more
  • Low smell, water based formula is easy to apply and cleans up with soap and water
  • Dries to the touch in 30 minutes and covers up to 87 sq. ft. per quart, recoat after 2 hours
  • Weather and UV resistant top coat does not yellow
  • Crystal clear, semi-gloss finish creates a smooth and classy look

How to choose a good exterior polyurethanes

Does the idea of finding a fantastic exterior polyurethanes make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in exterior polyurethanes. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top exterior polyurethanes products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top exterior polyurethanes on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top exterior polyurethanes brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top exterior polyurethanes based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the exterior polyurethanes were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good exterior polyurethanes, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your exterior polyurethanes.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting exterior polyurethanes for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our exterior polyurethanes. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what exterior polyurethanes should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on exterior polyurethanes.