Etch, Epoxy and Weld Primers
What is an etch primer?
Etch Primer is a primer that is designed to be applied directly to bare metal. Etch primers also protect against corrosion. Etch primers contain a very mild acid that etches into the metal, creating an even stronger bond between the surface and the primer, so has excellent adhesion. Etch primer can also be know as wash primer.
What is an epoxy primer?
Epoxy primer is a sealer that produces a good surface finish. It is a good base to ensure that the car paint bonds to the metal to promote a quality paint finish. Epoxy primers can be used to waterproof materials that consequently protect the bare metal from oxidation.
What is weld thru primer?
Weld-thru primer is used to protect bare metal from corrosion during the collision repair process, whereas paint primer is used to cover surface flaws and provide a proper foundation for the paint. Weld-thru primer is usually made with zinc; however, some are copper based. It helps provide permanent rust protection on the inner edges of the welded metal pieces.
