How to Fix Uneven Epoxy Resin? Definitive Guide with Video

How to Fix Uneven Epoxy Resin

Working with epoxy resin is not too difficult, but there are definitely ways you can mess up your project. There are a few things that often go wrong when working with resin, and one of the main things is uneven epoxy resin. You can get uneven epoxy resin by making some very common mistakes that can be avoided easily.

With our guide on how to fix uneven epoxy resin, you can easily make your resin projects with smooth finishes. Additionally, we will be giving you some tips on what to avoid when working on your resin project so you can get even finishes.

How to Fix Ripples in Epoxy?

Sometimes you may see that even after the entire surface of your epoxy resin has cured completely, the surface may still be a bit sticky. This situation is absolutely not ideal if you are especially working on something like a countertop with resin.

Although you can’t really do much if this situation has already come true for you, you should be aware of what to do to avoid this sticky resin situation. Epoxy is strong, that’s why I use it as an adhesive for iron on patches. But it also makes it a hassle to get off.

There are two primary reasons why you might face this situation. The first one is that if the room temperature that you’re working in is too low. If the room is too cold then the resin will not cure properly which will make it sticky, and the surface will not look completely even.

To avoid this, you should work at the average room temperature of about 20 to 30 degrees Celsius. If you notice that your resin is becoming uneven and sticky, just slowly move your project to another warmer room.

Another common reason why your surface might be sticky, and tacky is if you don’t properly measure out the proportions of resin and hardener. Depending on the look you want you can either use a ratio of 1:1 or 1:2 of resin and hardener.

Also, ensure that you mix the resin properly, or else the finish might be tacky. Adding too little or too much hardener can cause the surface to be sticky. It can also be helpful to know the difference between epoxy vs super glue which are other powerful adhesives that are hard to remove.

How to Fix Uneven Epoxy Resin? Guide for Fixing Common Epoxy Problems

Step by Step Guide  to Fix Uneven Epoxy Resin

After your resin project has cured completely you may see that the surface is uneven, so you may need to take a few steps to fix this.

Step 1: Identify the Uneven Spots

The first thing you should do when fixing an uneven resin surface is identified all the uneven spots. This will ensure that you don’t miss any spots when you are fixing the surface. You can use stickers to mark the spots since they will be completely cured, but do not use paint to mark the spots.

Step 2: Cover the Uneven Surfaces

If there are any deep scratches on your resin surface, then take a product like Old English and cover all the scratched spots. This will help you to fill in the uneven surfaces formed due to the scratches.

Step 3: Sand the Epoxy Resin Surface

After you are done covering your uneven spots with Old English take fine sandpaper of about 650-grit and sand the uneven area. Continue to sand the area with a constant motion until you see that the surface has become perfectly level.

At this point, you could use something like a spirit level to check whether the surface is actually even or not.

Step 4: Wipe the Surface with a Dry and Then a Wet Cloth

You will see after you have made your surface even by sanding it, there will be a lot of debris on the surface. Take a dry cloth and dust off all the dust and debris from your epoxy resin surface.

After you have dusted off the surface, create a 50/50 mixture of household cleaner and water. Then, dampen a piece of cloth in this mixture, and wipe your evened-out resin surface with the damp rag so it is completely clean.

Step 5: Pour a Thin Coat of Resin

Wait for your surface to dry completely then pour a very thin coat of resin over your surface. This thin final coat of resin will allow you to restore the clear glass finish of your resin project, and will overall create a smooth look. It acts as a seal layer and will make your project look new.

How to Fix Ripples and Waves on Your Epoxy Resin Surface?

How to Fix Ripples and Waves on Your Epoxy Resin Surface

When working with resin surfaces, especially when trying to make resin countertops you may see the resin surface is warping. However, you can fix this issue with a few simple steps at home, that will help you save some money.

Step 1: Apply a Thin Seal Coat of Resin

Applying this thin seal coat will fill the little holes in the surface. You will find applying this seal coat is especially useful if you are working on materials such as wood or concrete.

This layer will prevent the formation of too many air bubbles which could issues. Lastly, make sure that this layer is about only 3 mm in thickness throughout the length of your surface.

Step 2: Apply a Final Flood Coat

After the seal coat has cured, finish off by applying a very thin layer of resin called the flood coat. This coat will give you the appearance of an even surface that is crucial for your resin creation to look good!

Step 3: Use a Heat Gun in Low Heat to Pop the Air Bubbles

If you have experience in working with resin then you may know that heat guns are commonly used to pop air bubbles on the surface while the resin cures. However, do not use a very high temperature to pop the air bubbles or you might cause warping or formation of ripples.

Additional Tips for Avoiding Uneven Resin Surfaces

There are some things that you can do beforehand so you don’t have to go through the tiring process of having to even out your resin surface.

Cover Your Resin Project While It Cures

We cannot emphasize enough how you should always cover your resin surface or molds while you are letting them cure. Since it takes as much as 2 to 3 days for the resin to cure, dust and debris will most probably fall on your resin surface if you leave it uncovered.

Therefore, you should use something like a large bell jar to cover your epoxy resin projects while you let it cure. If something gets caught in your wet resin, and you pick it out with tweezers you will have a bump on the surface that you’ll have to fix later on.

Work on a Completely Level Surface

Before you even pour your epoxy resin into a mold or a surface, you should use a spirit or digital level to ensure that the surface you are working on is even. If you leave your project to cure on an uneven surface you will end up with an uneven-looking surface.

Use Compatible Resin and Hardener

The resin of some brands may not be compatible with some hardeners, and the reaction between them might make the epoxy fail to bond. Therefore, you will end up with a tacky and uneven resin surface. So, always check what hardeners your resin is compatible with before you begin your project.

Frequently Asked Questions

Can you spot fix epoxy?

Yes. Lightly sand the surface and then apply a second coat of epoxy. Make sure the epoxy is completely dry before sanding.

How do you fix epoxy failure?

In the event that epoxy fails, lightly sand the surface of the cured epoxy and reapply fresh epoxy. Make sure to use a primer before applying a second coat of epoxy. If using an expoy with a hardener, make sure to stir well and apply in thin coats.

Can you pour epoxy over cured epoxy?

Yes, you can pour epoxy over cured epoxy, but you have to make sure that the surface is smooth and free of any bumps or protrusions before you start.

Will epoxy fill in imperfections?

Yes, epoxy will fill in imperfections. It’s a great way to hide and fix small blemishes or cracks in a surface. However, it’s not recommended for use on large areas or surfaces, as it can be difficult to get an even finish.


Resin is a fantastic substance to create art with, and you can get very creative with it. However, there are some issues you might face when working with it and uneven surfaces are one of them.

By following our detailed article on how to fix uneven epoxy resin, we hope you will be able to create some beautiful resin items with smooth finishes!

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