Top Best Exterior Grade Polyurethane Varnishes – Review And Buying Guide

Have you ever wondered what is the best exterior grade polyurethane varnishes? Well, I did, so I went on a hunt to find out. It turns out that it was relatively hard to do because there are many aspects to consider. Besides, everyone has different needs and preferences. However, after careful research, I was able to create my personal list of the top exterior grade polyurethane varnishes right now, which I'm going to share with you today.

Finding the best exterior grade polyurethane varnishes for your budget if you're looking for some help keeping yourself in shape or need guidance on where to start. This review gives you an overview of your options. There is a lot of exterior grade polyurethane varnishes on the market; which one should you buy? I've reviewed and rated 10 of the most popular products in this article.

10 exterior grade polyurethane varnishes: Editor Chooice

Our 10 exterior grade polyurethane varnishes Review:

Bestseller No. 1
TotalBoat Gleam Marine Spar Varnish, Gloss and Satin Polyurethane Finish for Wood, Boats and Outdoor Furniture (Satin Low-Sheen 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)
Bestseller No. 2
TotalBoat-520605 Halcyon Marine Varnish | Water-Based Polyurethane Wood Finish | Clear Satin UV Protection for Interior and Outdoor Use (Clear Satin, Quart)
  • 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
Bestseller No. 3
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
Bestseller No. 4
TotalBoat Lust Marine Varnish, High Gloss and Matte Finish for Wood, Boats, Outdoor Furniture (Matte, Pint)
  • MARINE GRADE VARNISH imparts a rich, clear amber tone that enhances wood grain; creates a durable, uv resistant, waterproof finish that won't fade; ideal for interior and exterior wood, brightwork on boats & outdoor furniture
  • CLASSIC SPAR VARNISH WITH A MODERN TWIST: High-build, fast-drying formula allows rapid recoating, multiple coats per day and no sanding between coats; sand lightly before the final coat - be done in a little over 1 day
  • FLEXIBLE COATING WON'T CRACK OR PEEL: Premium, oil-based marine polyurethane finish is not damaged when wood expands and contracts with changes in temperature; perfect for all types of wood
  • EASY TO APPLY by brushing, rolling or spraying; For a high gloss varnish finish apply 6-8 coats of Lust Gloss; for a smooth satin finish, build with coats of Lust gloss varnish; use Lust Matte for the finish coats
  • AVAILABLE IN HIGH GLOSS OR MATTE FINISH in Pint, Quart and Gallon sizes; Thinner: TotalBoat Special Brushing Thinner 100 (brushing/rolling) or TotalBoat Spray Thinner 101 (spraying); Coverage: 360-400 sq. ft./gallon
SaleBestseller No. 5
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.
Bestseller No. 6
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
SaleBestseller No. 7
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.
Bestseller No. 8
Rust-Oleum 250241H Ultimate Spar Urethane Water Based, Quart, Satin Finish
  • 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
Bestseller No. 9
Helmsman
  • Amazon Prime Video (Video on Demand)
  • Mehdi Mohajeri, Majid Deris, Yousef Khodaparast (Actors)
  • Majid Esmaili Parsa (Director) - Majid Esmaili Parsa (Writer) - Javad Gholizadeh (Producer)
  • English (Playback Language)
  • English (Subtitle)
Bestseller No. 10
Rust-Oleum Varathane 242180H 1-Quart Classic Clear Oil Based Outdoor Spar 275 Voc Urethane, Gloss 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

Buying Guide: What to Consider When Select exterior grade polyurethane varnishes

We analyzed a wide range of exterior grade polyurethane varnishes to provide a great overview of the current market. Each was objective across a few criteria to determine relative levels of performance. We compare each across the different factors to determine which products are best for specific applications. Based on our expert recommendations, we have selected our top picks:

  • Size
  • Brand value
  • Features
  • Specifications
  • Durability
  • Quality
  • materials
  • Style
  • Design
  • Longevity
  • Consumer ratings & reviews
  • Product price
  • Warranties
  • Types

exterior grade polyurethane varnishes Buying Guide

The best way to make the most of your time is to list the things you want to buy, weighing all the factors before deciding. There are many ways this post can suggest that will help you do this and avoid purchasing the wrong product.

If you're in a hurry for some reason, take our word for it don't buy anything until you've finished reading this post! These factors will help you make the right decision when buying a product. Here are some of the things that you should consider before buying a product:

  • Price: How much are you willing to spend on your new product? If money is not an issue, you can choose the most expensive option. However, if you have a tight budget, then it is important to choose one that fits your needs and budget.
  • Durability: You need to consider how long your exterior grade polyurethane varnishes will last before you buy it. Investing in something that will last longer than buying something that will break down after just a few uses is always better.
  • Quality: The quality of exterior grade polyurethane varnishes should be considered before buying it. A good product will have high-quality materials used during manufacturing and construction.
  • Brand: The brand reputation of a particular product is also important because it tells you how reliable they are and how they stand behind their products.

Here is a brief description of important factors for buying a product:

Check Reviews

This is a great way to know what other people have experienced with exterior grade polyurethane varnishes. You can check out user reviews on Amazon or other websites where users can post their thoughts on a product. The best place to look for reviews is on Amazon, which has a star rating system that gives you an idea of how good or bad a product is. If there are enough reviews with bad ratings (less than 3 stars), it’s probably not worth buying that product.

Look at the price

This may seem obvious, but it’s important not to just look at how much something costs and decide that it’s too expensive. Instead, you should compare prices between different sellers and see which offers more value for money! For example, if you find a similar product for $10 cheaper elsewhere, it might be worth buying from that seller instead of the first one you came across!

Type of product

There are many types of exterior grade polyurethane varnishes you can buy. Some are basic, while others are advanced. You need to determine what type of product you need and then buy one that fits your needs. For example, if you want a simple product, the best choice is a basic one. However, suppose you want something more advanced. In that case, it’s better to get an expensive one because it will have extra features.

Size

The product size also matters when choosing the right exterior grade polyurethane varnishes for yourself or someone else, as different people have different requirements when using their products. For example, if there is someone who uses large sized products or devices, then he/she would need something bigger than others who use smaller devices or tools. Therefore, it is important that you look at the size of each product before purchasing them so that they can meet all your needs and requirements in terms of size.

Brand

You need to buy a branded product because it has been tested and proven effective by many people before you buy it. Brands also have guarantees on their exterior grade polyurethane varnishes so that if anything happens to your new item within the warranty period, they will repair it or replace it without hassle.

Durability

You should consider how long the exterior grade polyurethane varnishes will last. This is because it is important for you to buy something that will serve your needs for years. If many people have used a particular product without any problem, then it means that it is durable and can serve your purpose well.

Easy to Use

When buying a exterior grade polyurethane varnishes, make sure that it is easy to use so that you do not experience any difficulties while using it after purchase. Some exterior grade polyurethane varnishes may look great but are too complicated for your level of expertise or knowledge about them. Make sure that the product is user-friendly so that even someone who does not have much experience can use it comfortably without any problems or inconveniences whatsoever.

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