Does clear epoxy turn yellow?

“Does clear epoxy turn yellow?” is a question that bothers many people, especially those who use this resin for all manner of crafts.

While the answer to this question is complicated, there are some ways to prevent your epoxy from turning yellow. In this article, we’ll be taking an in-depth look into the chemistry of epoxy and what makes it change color.

How do you keep epoxy from turning yellow?

What epoxy does not yellow?

A clear epoxy that does not yellow is one which has been formulated to resist or even prevent the effects of UV light. There are a few different ways this can be done:

  • Epoxy with UV stabilizer – A UV stabilizer is an additive that helps reduce the effects of UV light on the epoxy. It works by absorbing and dispersing some of the energy from any damaging rays before they get to your finish.
  • Epoxy with UV absorber – An absorber works in a similar way as a stabilizer, but it’s often more effective at preventing yellowing.
  • Epoxy without either – If you’re using an epoxy without a UV stable additive (that means no stabilizer or absorber), you’ll have to rely on other methods for preventing discoloration, such as using tinted pigments or paints instead of clear coats when possible

How long does it take for epoxy to yellow?

How long it takes depends on the brand, the product, and your UV exposure. If you’re not sure what brand or product you have and need to know how long it’ll take for your epoxy to yellow, then call them. They should be able to tell you exactly how long it will take for their epoxy to yellow based on your climate.

If you want an idea of how long it might take before your epoxy begins turning yellow, then look at its UV resistance rating. The higher this rating is (i.e., 50+), the longer it will likely protect from sunlight exposure before turning yellow or discoloring in any way (or possibly even fading).

Why is my clear resin turning yellow?

  • You’ve probably noticed that clear epoxy resin can turn yellow over time. This is often caused by exposure to ultraviolet light (UV), so you should keep your epoxy in a dark place to prevent this from happening.
  • It’s also possible that the resin wasn’t mixed properly, which could cause it not to cure properly. If this is the case, try mixing some new batches of resin and see if they cure correctly before judging whether or not your old batch was bad.

Does all epoxy turn yellow?

There are a few factors that will determine how fast your clear epoxy turns yellow.

The first and most important factor is the resin you are using. Different resins have different levels of UV protection and its helpful to know what that level is when choosing your epoxy.

A lower amount of UV protection can lead to quicker yellowing in the long run, but it is not guaranteed that all resins with no UV protection will yellow faster than other options.

Another interesting thing about this question is that there isn’t one simple answer for all epoxies because different types of light can affect them differently! This also means that the amount of light exposure can impact how quickly an epoxy will turn yellow (and/or blue).

For example, direct sunlight tends to cause more visible bleaching than artificial lighting or natural daylighting sources like windows do because they emit higher amounts of UVA rays which lead directly to increased bleaching over time

What is the clearest epoxy resin?

There are a few things that can affect the color of epoxy resin. The first is sunlight, which is something you want to avoid when using clear epoxy resin or paint.

The second is UV rays from the sun, which will cause your epoxy in general to turn yellow over time.

The only thing that can change the color of epoxy is if it was exposed to UV rays from the sun and then left out in the air for a long time without being protected by some kind of covering or sealant. If this happens, then yes—your clear coat would eventually turn yellow due to oxidation caused by these damaging UV rays.

Which is better resin or epoxy?

There are many differences between the two types of clear epoxy, but one of the biggest differentiators is their longevity. While resin-based clear coatings tend to yellow over time due to UV exposure, epoxy coatings will not.

Resin-based clears also tend to be more flexible than some epoxies; they can be used on curved surfaces without cracking or peeling away from areas like edges and corners. However, epoxies are stronger than resin-based clears—they’re ideal for protecting a motorbike or other motorcycle parts that may see heavy use during a race or other event.

Epoxies are also less likely to yellow under UV radiation than resins because they create a harder finish with fewer solvents in them (solvents like alcohol and acetone).

What happens to epoxy in the sun?

You can’t get a better answer than this: What happens to epoxy in the sun? Not much. If you’re worried about your epoxy turning yellow, don’t be. UV rays have no effect on it. Epoxy is not affected by sunlight, so it won’t turn any color when exposed to UV light.

The reason that some people believe that it does is because they think that UV light causes things to change color (which isn’t always true). Some types of paint actually absorb UV rays and change color based on how much exposure they get, but epoxy resin does not absorb UV radiation at all!


If you’re looking for a clear epoxy that won’t turn yellow over time, look no further than our product. We’ve been in the business of making high quality epoxies for over ten years and have used that experience to develop an epoxy that won’t tarnish or discolor.

As you can see from our reviews, we provide customers with a wide variety of options so they can find exactly what they need. There’s no need to worry about whether or not your project will come out as intended because we’ve got your back! You deserve only the best results when it comes time to show off what you’ve accomplished.

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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