Why do I keep getting fish eyes in my epoxy?

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.

How do you prevent fish eyes in epoxy resin?

Solution: Fine sanding is typically the culprit for a smooth surface. This can be avoided by sanding with 120-150 grit. Allow the existing epoxy to cure hard and block sand flat using 120-150 grit until leveled. If the cratering is minimal, you can use a squeegee to fill in those areas with epoxy and then sand flat.

Why does my epoxy keep fish eyeing?

When a coating is applied to a substrate that is contaminated with low surface energy particles such as oil, wax, grease, or silicone, fish eyes may develop in the coating as it is applied. These fish eyes are produced because the coating is unable to wet out the contaminated area.

Why am I getting dimples in my epoxy tumbler?

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 you buff out fish eyes?

Remove wet paint film with solvent, clean and refinish. Add the recommended fisheye eliminator and respray the affected area. If fisheyes appear in a basecoat, allow the color to flash then spray a mist coat over affected area. Do not use fisheye eliminator in undercoats or basecoat color.

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Should you sand between coats of epoxy?

Sanding epoxy resin between coats will not only get out the imperfection, but will also serve to provide some tooth between the first and second layers.

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.

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.

Why is my epoxy not smooth?

The most common cause for uneven epoxy resin is often not using the correct mixing ratio, or even using hardener and resin that is too old. This can lead to sticky spots in the cured resin. Surface preparation is often key to these problems, so make sure you have done yours well.

Why do my tumblers keep getting fish eyes?

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.

How long do I have to wait between coats of epoxy?

Depending on the epoxy you've chosen to work with, you'll have to wait between 4 and 24 hours before applying your second coat. Be sure to read your directions very thoroughly before beginning your project.

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.

How long do you let resin sit before pouring?

Layering in molds - allow each layer to set up for at least 3 hours before pouring next layer. Doming - you can apply your resin right after the 5 minute rest period, or let the resin thicken for up to 25-30 minutes.

How do you remove dust from cured epoxy resin?

What causes fish eyes?

Fish eyes can be caused by oily spots or silicone particles and/or by airborne droplets that are deposited on the painted surface. When a coating is applied to a substrate that is contaminated with low surface energy particles such as oil, wax, grease or silicone, fish eyes may develop in the coating as it is applied.

Why did my clear coat fisheye?

One issue that may occur on a paint job is called “fisheye.” Fisheyes (also known as craters) are an unattractive occurrence that can happen when dirt, wax, oil, or silicone gets stuck under the paint on your car. This causes spots or bubbles in the paint job.

Why is my epoxy cratering?

If the bubble pops after the concrete coating has gelled and can't flow anymore, it will leave a pinhole. Finally, if a large bubble pops after the concrete coating has gelled, it will leave a crater (sometimes with a loose “skin” attached).

Why did my epoxy ripple?

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.

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.