high temperature epoxy

Best Heat Resistant Epoxy – A Guide on High Temperature Epoxy

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Epoxy is a seriously versatile material that can be put to all kinds of different uses. It has become a popular medium, as it can be used to create everything from small craft and art projects, such as jewelry making, to larger DIY and industrial applications – like flooring and creating tabletops. If you are looking for the best heat resistant epoxy, there are many different products to choose from and considerations to make.



Is Epoxy Heat Resistant?

In general, epoxy resin offers a certain level of heat resistance. However, the extent of heat resistance various from product to product. The most common epoxy resin that is usually used for DIY projects and small jobs can only handle a minimal amount of heat and is not specifically high temp epoxy.

High-temperature epoxy is a special product that can withstand more intense heat levels without distorting. The higher heat resistant epoxy resins are used for creating things like coasters or countertops where there is more heat exposure.

heat resistant epoxy



What are Epoxy Temperature Limits?

The general epoxy temperature limits are around 150 to 300 degrees Fahrenheit. However, this heat can only be tolerated for short spaces of time, and not consistently. Special heat-resistant resin can withstand temperate around 600 degrees Fahrenheit. This varies between products.



What is High Temp Epoxy?

Is epoxy heat resistant, and how much temperature can it take? High-temperature epoxy, or heat resistant epoxy resin, is a specially formulated medium that has been designed to withstand direct contact to more intense heat. Unlike regular epoxy, this resin won’t warp if exposed to heat. This has been created for use in industrial settings, and on things like countertops. High temp epoxy is also often used for mechanical repairs and electrical coverings. This type of resin is usually more durable and robust.

Regular epoxy temperature limits are low, and any heat greater than 68 – 195 degrees Fahrenheit will likely cause some distortion in the resin. Higher temperatures will soften the resin to an almost rubber-like consistency. The best heat resistant epoxy can withstand temperatures up to 600 degrees Fahrenheit thanks to added fillers and reinforcements in the resin.

high temp epoxy



The Best Heat Resistant Epoxy: STONE COAT Epoxy

If you are looking for an epoxy brand that can be used in situations that require high heat resistance and heavy use, then Stone Coat is our top recommendation.

STONE COAT Countertops Super Cast Resin
  • A durable woodworking/countertop epoxy resin
  • Scratch-resistant and UV resistant
  • Provides a clear and shiny finish
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Stone Coat Epoxy can be used on various DIY and home projects and is compatible with all sorts of surfaces. Probably the most popular use for this product is creating tabletops and countertops, or uplifting old surfaces for a fresh look.


  • A high level of durability and stability
  • Heat resistant and flame retardent
  • You get a perfectly even and flat surface
  • A UV resistant epoxy resin
  • Completely food safe
  • The finish is polished, smooth, and glossy


  • Sometimes heat resistant epoxy can cure to a slightly yellow tint
  • The curing process may need additional heating methods
  • Can be a more expensive product if used over a large surface area


How to Use Stone Coat Epoxy

Stone Coat is one of the best heat resistant epoxy options out there thanks to its easy to use formula. It is a great product for home DIY projects as well as more intense applications. This epoxy provides a durable finish that is as functional as it is good looking.


Stone Coat Benefits

  • There is an easy to follow training video provided by Stone Coat
  • The epoxy is eco-friendly and safe to use
  • A VOC free formula
  • The cured resin is scratch-resistant and cleans easily
  • Heat resistant up to 500 degrees Fahrenheit once cured
  • It cures to a hard and completely clear finish


Step-by-Step Guide to Using Stone Coat Epoxy

Once you know how much resin you will be using and know where you will apply it, the following six-step process can be followed:

  1. Start by measuring out equal parts of the resin and hardener at the quantity you need
  2. Mix together the two parts carefully and thoroughly
  3. Add a color coat using a flat leveling tool and remove the air bubbles
  4. Once the color coat has set (24 hours), add a clear coat on top. Once dry you can sand down the surface anmd clean it with a wet cloth
  5. Wait a couple of days for the epoxy to fully cure
  6. The epoxy resin finish is now ready. Remember not to scrub the surface of it, but keep it clean with normal surface cleaners

heat resistant resin



Can Epoxy Temperature Limits be Reduced?

Yes, high-temperature epoxy resin can lose some of its heat resistance due to certain factors. When mixing the resin, the correct ratio of hardener to resin needs to be implemented – otherwise, the properties of the resin, including heat resistance, can be affected. Always follow the mixing instructions carefully.

Any additional additives to the resin, such as color pigments, can also affect the resin’s properties and temperature resistance. If you are using colored resin, it’s best to add a top coat of clear resin over it for better heat resistance.



High Temperature Epoxy Resin Tips and Tricks

When using the best heat resistant epoxy, following the provided instructions is the first necessary step to success. To make sure the process of using the resin is as smooth as possible, some additional tips and tricks can be followed.

  • Always be prepared and have all equipment and tools ready before you start working with the high temperature epoxy resin
  • Do not waste time when working with resin, as you only have a limited time window before the epoxy starts to dry
  • Make sure the work table or surface is at a comfortable height
  • Clear any dust off the surface with a cloth dipped in isopropyl alcohol before you apply the resin
  • When mixing, follow a timer for better accuracy
  • Notice the temperature of the area you are working in, as this can change the way the resin works and cures
  • When working on a large flat surface, try to use a leveling tool for an even result
  • If using a paintbrush, go for a quality brush that will not lose its bristles. Using a black brush makes it easier to notice and remove any bristles that get stuck in the resin
  • Getting rid of bubbles can be done with a toothpick or a heat source like a blowtorch or hot hairdryer
  • If using a blowtorch, aim it away from the resin. This stops dust or dirt from being blown onto the resin
  • Make sure the resin is covered when curing to avoid dust settling into it
  • Adding things like pigments into the resin will change its chemical properties. It’s best to add an extra clear top coat to maintain heat-resistance
  • Epoxy resin that is still wet can be cleaned up with acetone


There are many factors to consider when buying the best heat resistant epoxy. Heat resistant resin is a special product that can be used in a wide range of applications and can enhance all kinds of surfaces. Follow this guide when using the resin to achieve optimal results.


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