Table of Contents
When should epoxy primer be used?
Epoxy primer refers to a sealer that has a non-porous finish. It is primarily recommended as the first base coat over bare steel. These base coats or epoxy primers can be used over fiberglass, plastic or the black iron phosphate coating as well.
What is epoxy primer for?
Epoxy primers are among the most resilient ways to prevent rust, and they form a non-porous, tightly bonded seal when applied to bare metal. Unlike a rust inhibitor, epoxy primers are meant to be applied to bare metal before paint or under coating, and long before corrosion sets in.
Do you need epoxy primer?
An epoxy primer is the foundation of your floor coating system. Without it, your epoxy system will not work as well no matter what type of epoxy you are applying. Epoxy primers are the layer that you will build upon with other base coats and topcoats.
Is epoxy primer better than regular primer?
1. Over Bare, Clean Metal – Epoxy primers are amazing at sealing up bare metal and from allowing moisture or corrosion to creep in. Epoxy primer actually seals out the oxygen from the metal, leaving no chance of rust or corrosion forming on the surface like some cheap spray bomb type primers.
Do you have to sand epoxy primer before painting?
(Q) Do I have to sand Epoxy Primer before topcoating? (A) No, epoxy may be topcoated without sanding up to four or five days. After that point, you’ll need to abrade the surface.
How long can epoxy primer sit before painting?
Most primers should sit on a car for around 24 hours before applying the base coat of paint. Some primers may dry in as little as 30 minutes, but experts say to apply the primer 24 hours before painting for the best results.
How do you prepare epoxy primer for body filler?
46 Epoxy primer must dry for one hour and all metal work must be completed before starting the body filler process. Applying body filler over epoxy primer provides maximum corrosion protection for the metal. Apply filler within seven days of applying epoxy primer to maximize adhesion.
Can I paint over epoxy primer?
A epoxy surface that has not been abraded will not accept new paint because it cannot adhere to it. It is recommended to sand the old epoxy finish with a 120- to 220-grit sandpaper to promote adhesion. A paint will bond to epoxy once it has been abraded.
Can you spray epoxy primer over rust converter?
If you purchase a good epoxy prime with no acid then using a good rust converter on the metal will work fine. We do it all the time but if the primer has acid in it you can be sure it’s going to peel.
Can you use epoxy primer over self etch primer?
Did you know? It is no longer recommended to use an etch primer under an epoxy primer. Residual acid from the etch primer can interfere with the proper curing of the epoxy. This may lead to extended dry times, potential blistering, and even adhesion failure.
Which is better red oxide or epoxy primer?
Epoxy Primer has better chemical resistance, abrasion resistance and adhesion than Redoxide. Epoxy primer will chalk under UV, thus a topcoat is recommended when used outdoor. Redoxide on the other hand has better UV resistance, easier to apply because it is one part and cost cheaper than Epoxy Primer.
Will epoxy primer fill scratches?
Plus I usually epoxy prime on bare metal, followed by a few coats of high build. So it burys the scratches pretty good. Burying a deep scratch doesn’t mean that it can’t come back to haunt you.
How do you prepare metal for epoxy primer?
To prepare a bare metal surface for this primer, clean it with a wax and grease remover. This will ensure that all road grime, dirt, grease and other surface contaminants are removed. It is important that the metal surface is slightly abrasive so that the primer coat will be more adhesive.
What do you use to sand epoxy primer?
It does seem to be sandable. Based on my general knowledge of epoxies, I would give it at least 2 days in the sun, more if you can. Then use some 220-320 wet sandpaper and sand it smooth. Then apply more epoxy.
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.
Do you sand epoxy primer before basecoat?
Hi Peter, if sanding with 600 gives you a smooth even surface then that should be all you need before spraying your base coat. However if you have a lot of areas that the sanding has exposed underlying variables then another coat of over-reduced epoxy primer would probably be a good idea.
Can epoxy primer be left unpainted?
Re: Leaving DP Epoxy primer uncoated? I know that Epoxy Primer with the Hardner is waterproof and can be left unpainted and is an excellent rust encapsulator. It also has a nice semi to matt look to it.
Does epoxy primer shrink?
Even our epoxy and clear.. They shrink as they cure,, Just a fact..
