Why is my epoxy tumbler bumpy?

Surface Imperfections

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.

Why are my resin tumblers bumpy?

If you have bumpy, spotty, uneven surface, it might be due to not using enough epoxy to coat the object. We did some ornaments and cups and found that if you don't use enough, no matter how smooth it is at application, it will eventually look like the top picture in this post.

Why does my epoxy have ripples?

Epoxy Surface Cures Uneven with Ripples or Waves:

This product needs to be applied in full 1/8” flood coats in order to properly self-level. 3) Applying too much heat during your bubble removal techniques will cause a ripple effect.

Why is my epoxy not smooth on tumblers?

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.

Why did my epoxy get wavy?

When you first mix epoxy resin together, you should expect to see wavy resin. Because the two parts of a resin kit are different liquid consistencies, these look like swirls when you mix them together. As you continue mixing them together, these swirls will disappear.

Tumblers 101: Lumps and Bumps

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.

How do you smooth epoxy edges?

After letting the resin run down the sides of your artwork, and letting it cure for 24 hours at the bare minimum, use sandpaper (80-200 grit) or a power sander to smooth out the edges of your artwork. Once each side is smooth, you may paint them the color of your choosing.

Why is my epoxy dimpling?

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!

Why is my resin not leveling?

If you find that your resin is not leveling out, then you are not using enough. Be sure that the project you are working with is level. A good rule of thumb is to always mix a tad bit more than you think you are going to need, and always be generous when applying to your surface.

How many coats of epoxy do you put on a tumbler?

Our crafters wonder typically how many coats of epoxy is enough for their tumbler. It does depend on what you're creating, but the average is 2-3 coats. To properly seal all the layers beneath, we recommend using a topcoat of your resin.

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.

Do you have to sand between coats of epoxy on tumbler?

?TIP: Remember: whenever your resin is dry, you need to sand before you apply a second coat to ensure the two layers bond together. If you don't sand, you run the risk of the two layers eventually delaminating.

How do you fix epoxy craters?

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.

Can you sand air bubbles out of epoxy?

Simply sand down the entire surface of your piece with coarse sandpaper, making sure you sand out the bubbles completely. Wipe away the sanding dust with damp paper towel, repeating as often as needed until the surface is clear of sanding residue. Apply a fresh coat of carefully measured and mixed ArtResin epoxy resin.

How long should epoxy cure before sanding?

Tip: The epoxy resin must be really dry before sanding. You should therefore allow a waiting period of at least 48 hours before processing. Follow the manufacturer's instructions, as there are resins that take even longer to harden completely.

How do you smooth resin after sanding?

First, apply some of the colorless polishing paste to the cotton or linen cloth and then moisten it slightly with water. Then rub the cloth in slow, circular movements with a little pressure over your work. It may take some time before the surface has the desired shine.

How long do I let my epoxy tumbler spin?

Once all epoxy is on the cup keep the cup spinning. Wait about 5-10 minutes and carefully (and with gloves still on) remove the tape from both the top and bottom. If you leave the tape on you'll end up sealing it under the epoxy layer. Let the tumbler turner spin the cup slowly for 6-8 hours.

What happens if you add too much hardener to resin?

Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly.

Why has my resin wrinkled?

It sounds like your resin may have shrunk too much during curing.