Media Blasting Body - Worht the money?

[salazar44]

Originally Posted by Captainfab

Glad you mentioned that Derric....I almost forgot about the PPG NCP primers that I believe is a etching epoxy primer....I've used this one also. IIRC the NCP primers don't have the isocyanides (sp?) Although it is my understanding that if the metal is media blasted use of an etching primer isn't as crucial since the media blasting etches the metal. Any opinions on that?

I dont think so. I believe a chemical etch of metal is required, not a mechanical etch. This would be like saying sanding is etching the metal, so no protection is required.

[kdrodworks316]

Originally Posted by salazar44

I dont think so. I believe a chemical etch of metal is required, not a mechanical etch. This would be like saying sanding is etching the metal, so no protection is required.

Yep, he's right. chemical etch is required. and remember that primer is not paint and it will not do well in the weather. my 62 looks like Black primer, but its painted satin black and left out for the sun to abuse and give the faded primer look.