PPG 6840B is a two component chromated etch primer designed to give adhesion and corrosion protection to aluminium alloys as part of the 4080 series scheme.

Features

• Alternative pretreatment to chemical conversion coatings

• Good corrosion resistance

• Used to reactivate aged anodized or chromated surfaces

• Excellent adhesion between polyurethane primers

• Excellent adhesion to a variety of light alloys and steel