Parker Chomerics CHO-SHIELD® 1091 primer is an air-drying liquid coating for enhancing the adhesion of CHO-SHIELD® 2000 series electrically conductive coatings and CHO-BOND® 2165 to chemically treated aluminum and most composite surfaces. Using CHO-SHIELD® 1091 primer prior to application of the CHO-SHIELD® 2000 series coatings / CHO-BOND® 2165 sealant ensures optimal adhesion to the substrate eliminating the possibility of re-work due to adhesion issues.Features/Benefits:• Easy application• Quick drying in one hour• One component, no mixing required• Red tint enhances visual inspection• Various packaging options available