3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917 is a primer for 3M™ Scotch-Weld™ Epoxy Film Adhesives.
3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917 improves durability of bonded joints and protects cleaned surfaces until the bonding operation can be completed. It contains a corrosion-inhibitive pigment for added corrosion protection. The use of 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3917 ensures complete wetting of the adhesive to the adhered substrate. It can be sprayed or applied with a brush.