How do you fix imperfections in epoxy resin?

Asked by: Alicia Baker

An uneven hardening of your epoxy resin can lead to dull, or even tacky spots. To fix an uneven epoxy finish, wait until the epoxy has dried thoroughly, and then sand it lightly with fine-grained wet sandpaper. After this, make sure to wipe down the surface, so it is entirely free of any sanding dust and other debris.

How do you fix uneven epoxy resin?

If you do encounter an uneven finish with your epoxy resin, how can go about fixing it? A good rule to follow is to mix a little bit more epoxy than you need, ensuring you cover your surface completely. So, if your epoxy has already cured properly, you will need to sand down the surface and apply a second coat.

How do you smooth bumpy epoxy?

So I'm just going to apply a thin coat of epoxy. Over. This this fixed bumpy cup that's no longer bumpy. And. And it should be good to go.

How do you fix blemishes on resin?

So instead what we recommend. Is you stand on the entire surface. And pour another well mixed a well measured coat of resin over the entire surface. And that way you'll get a seamless flawless finish.

How do you fix epoxy dimples?

Whether your divots occurred during the pouring process of your countertops, or afterwards due to a soft cure, the solution is always to pour another coat of epoxy. You can pour directly over the previous epoxy pour within 24 hours of the first pour.

Can you pour epoxy over cured epoxy?

Can I put another coat of epoxy over cured epoxy? Yes. Since the epoxy has cured a chemical bond is not possible so what is called a mechanical bond is needed. This simply means that the cured epoxy has to be lightly sanded before the next coat is applied: the first coat should have a matt, almost white, surface.

Can you sand and buff epoxy resin?

Sanding Epoxy Resin – The Preparation for Polishing



For this you use water and a special sandpaper, which can also be used in wet condition. This is possible because the abrasive grains are attached to a waterproof fabric. The sanding is done carefully in circular movements from coarse grain 120 to grain 1000.

Why is my epoxy bumpy?

This problem can be caused by anything floating/falling into your resin while it cures, resulting in imperfections in the surface. If you are experiencing imperfections that look more like domed bumps in the resin, skip down to #4.

How do you fix ripples in resin?

Solution: Sand the imperfections out of the surface smoothing it out and finishing with 200-300 grit sandpaper. Wipe dust with a clean rag and acetone, wait 20 mins to dry then you can repour a new flood coat.

How do you fix fisheye in epoxy?

Lightly sand the existing epoxy with 120-150 grit. Care should be taken not to cut through the stain. Apply another seal coat of epoxy using an 1/8″ nap foam roller, working to fill in the craters. Allow the epoxy to cure hard, sand entire application flat, and re-coat to finish.

Why is my epoxy leaving dimples?

Dimples can occur for 3 reasons: temperature fluctuation, micro dust particles and overtorching. To avoid getting dimples in your cured resin, make sure that the temperature in your resin room stays stable, that you use a dustcover and that you only lightly torch your resin!

Can I put a second coat of epoxy resin?

Yes, you can apply a second coat of resin if you need to fix a mistake or a surface imperfection. You can also pour multiple layers if you need to cover areas of high relief, if you’re pouring into a mold or if you simply like the look of a thicker coat.

How do you prevent dimples in resin?

Sure that the temperature stays constant in the room while it cures make sure you have a cover to cover your piece and make sure that you don't over torch.

Why does my epoxy have craters?

Substrate contamination is the most common problem that causes fish eyes and pin holes in epoxy seal coats. Dust, dirt, wax, silicones, even the oil from your fingers when touching the part prior to sealing with epoxy will deter epoxy resins from laying flat and curing with a perfectly smooth surface.

What causes craters in epoxy?

It’s not unusual to see bubbles rising in a freshly applied epoxy coat. The most common cause of this is called “outgassing.” Outgassing is a natural process that occurs when trapped air or gasses from the concrete are released and creates blisters, craters, bubbles, or pinholes in epoxy floors.