Self etching primer

[glorydays24]

I was wanting to know if I was going to use a self etching primer on a complete rolling chassis with plastic parts, would the primer ruin the plastic? I've never used the self etching primer before, and didn't want to take a chance of ruining the plastic parts.

Thanks, Big John

[Rimrock]

Etching primer is the optimum on plastics and aluminium, brass, I have never had problems on plastics. Is not that strong concentration of acid in it, just enough for it to bite a bit into the surfaces (but keep it away from windows and other surfaces that are not supposed to be painted, as it can leave some traces when removed)
If one are going to use metallic top coat, one should seal off the etch primer with a standard primer first. The acid can react with the metal in the paint, corrosion.

[glorydays24]

Originally Posted by Rimrock

Etching primer is the optimum on plastics and aluminium, brass, I have never had problems on plastics. Is not that strong concentration of acid in it, just enough for it to bite a bit into the surfaces (but keep it away from windows and other surfaces that are not supposed to be painted, as it can leave some traces when removed)
If one are going to use metallic top coat, one should seal off the etch primer with a standard primer first. The acid can react with the metal in the paint, corrosion.

Thank you for the information Rimrock! Now I can put my concerns behind me.

Big John