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12.06.2021 0:32:30
Re: Do I need to sand my Rustoleum self etch primer before painting over it? [links]
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Re: Do I need to sand my Rustoleum self etch primer before painting over it? [links]
Re: Do I need to sand my Rustoleum self etch primer before painting over it?
What TYPE of paint are you applying to the metal primer? It probably would not hurt to hit it with some 600 grit wet sanding to get a good bond. "Don't forget to bring a towel" more
Re: Do I need to sand my Rustoleum self etch primer before painting over it?
Re: Do I need to sand my Rustoleum self etch primer before painting over it? here
Self etching only needs to be applied to Bare Aluminum. Once applied and dried (couple of hours) Use a 3m Scotch Brite pad to knock down any nibs and then shoot the Bare metal primer over the entire Prepped(Acetone wipe down) surface. Wait 4-8 hours for the Bare metal primer to dry then again a light buffing with the pad and then shoot the 1st coat of color. Check out Page 10 of my thread for the details on mixing etc. Note: I have changed my recommendation from Rustoleum to Valspar Tractor and Equipment paint with the Hardener.
It’s no secret that self etching primer is one of the best options for sealing up metal and keeping a barrier between bare metal and the moisture that tries to rust the metal! Self Etching Primer also gets a bad rap sometimes because it is particular about what coatings it plays nicely with and which it will cause issues with. Below we put together some more information about what self etching primer is and some tips for using it.
Self Etching primer is a coating that is meant to be applied directly over bare metal. It uses a combination of acid and zinc in its formula. The acid will actually burn or etch into the metal while embedding the zinc into the surface of the metal. This ensures good adhesion and rust prevention. All Self Etching Primers use this basic principle.
Self Etching primer can in fact be painted over but you need to closely follow the manufacturers application and top coat guide. As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term. We suggest using a Urethane Primer over the self etching primer as a barrier between the self etching primer (Do not use Epoxy over Self Etch). Urethane primer can be top coated with most coatings so you will immediately eliminate any worries of adhesion issues with your top coat.
Rust-Oleum® Self Etching Primer is designed to prepare bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the topcoat finish. Self Etching Primer is a rust preventive coating that etches and primes in one coat.
Furthermore, do you need to sand self etching primer? However, most manufacturers of self-etching primer, due to the acid base of the products, don't recommend directly sanding the self-etching primer. It should be noted that self-etching primer is mainly an acid base with pigments added, so you should be wearing a respirator when applying it.
can you top coat over self etching primer?
Post by uwjberg » 16 May 2015, 22:00
Post by lckstckn2smknbrls » 16 May 2015, 23:08
Post by craveman85 » 16 May 2015, 23:22