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| 品牌 | PPG |
| CAS編號 | |
| 別名 | PPG 7630-3600 PRIMER BASE |
| 保質期 | 12個月 |
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
