Do I have to sand epoxy primer before painting?

You should not need to sand the epoxy. But if you do, I use 220 grit to knock off the nibs. Check the tech sheets for dry time, really depends on temp and how long it’s been applied.

What is epoxy primer for?

An epoxy primer is very effective at sealing up bare metal and prevents moisture or corrosion from creeping in. It keeps out oxygen, ensuring that rust or corrosion do not form on the surface. It is non-porous when it cures and does not soak up moisture like most primer sealers.

Can you paint directly over epoxy primer?

They recommend a sealer over the epoxy before the paint. They said that you can paint over the epoxy, but best results would be with a sealer.. with no issues. I do scuff it when it sits longer, like overnight.

When can I paint over epoxy primer?

1) recommend waiting 24 hrs before top coating, but depending on temp can be sooner. 2) Up to 7 days after epoxy can topcoat without sanding or scruffing. no additional primer required if the surface is good.

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How long after epoxy primer Can you paint?

epoxy can sit just about forever but if it sets more than a couple days you should sand it and spray a coat of reduced epoxy as a sealer. most epoxies these days have around a 7 day recoat window but the more you wait the worse the adhesion is. i always like to get something on it within 24-48 hours.

How many coats of epoxy primer do I need?

The epoxy primer should be applied in medium wet coats, allowing a half an hour between each coat at around 70 degrees. One to two coats will render a one millimeter dry film thickness, which is typically enough to be completely effective.

What’s the difference between primer and epoxy primer?

Self etching primer bonds well to bare metal surfaces and can be top coated in a short period of time. Epoxy primer can be applied in heavy coats which can be guide coated and block sanded to remove small imperfections in the body. Epoxy primer takes longer to dry (cure) before it can be sanded or top coated.

Is epoxy primer safe to spray?

When an epoxy primer is sprayed and is airborne it should be treated with the same respect as a 2 pack paint. Required Protection: If you’re spraying (or near someone spraying ) epoxy primer then you need full respiratory protection. Check with the manufacturer of the primer to see what you need).

Do I need to seal epoxy primer?

For what it is worth, poly primer is not meant to be sealed and painted over. Poly primer is nothing more than sprayable body filler. You really should put down a couple coats of a regular primer surfacer, then sand it.

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What comes after epoxy primer?

After you have applied the epoxy primer you need to apply a good thick cover of something like PPG’s K36. After that has setup then you need to dust the area with a sanding guide coat. Rattle can primer of a contrasting color is what you need. Start block sanding the vehicle unit the guide primer is removed.

Can you base coat over epoxy primer?

Base over fresh epoxy is the best way to do it. Reduce your epoxy 1:1:1 so it is a thin “sealer” coat and it lays down texture free. Sand to atleast 320 before epoxy sealer.

What do you thin epoxy primer with?

Method #2: Thinning Epoxy Resin Using a Solvent Solvents like denatured alcohol, lacquer thinners and acetone. All of these solvents are easily available and also do a great job in lowering the viscosity. Also, these solvents evaporate quickly and are unlikely to become trapped in your cured epoxy resin.

How much epoxy primer do I mix?

The epoxies i have ever used mix 2-1 or 4-1. Not 1-1. If yours does mix 1-1 2 quarts of epoxy will be plenty on a car like that if you are just sealing it up before body work or other high build primer. The epoxy I use is a 1:1 mix.

What is the mix ratio for epoxy primer?

Sand and featheredge original finish with 220 or 320 wet or dry sandpaper. 2K Epoxy Prime-N-Seal is a two-component product consisting of 2K Epoxy Prime-N-Seal Part A and Part B 6798 Catalyst. The proper mixing ratio is 2:1.

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