SurTec® 650 chromium(VI)-free passivation is applied in dipping, spraying or wiping processes. The process creates a slightly iridescent conversion layer and incorporates chromium(VI)-free particles for ideal corrosion protection.
SurTec® 650 chromium(VI)-free passivation offers ideal corrosion protection and has a low electrical contact resistance. What is more, it is perfectly suitable for the post-treatment of anodized layers and as adhesive primer for lacquers, powder coatings and adhesive.
SurTec® 650 chromium(VI)-free passivation is suitable for almost all technically interesting aluminum alloys. This process is also used for the passivation of magnesium alloys.