3M™ Scotch-Weld™ Flexible Acrylic Adhesive is a black, non-sag, low odour, two-part acrylic adhesive.3M Scotch-Weld Flexible Acrylic Adhesive is a high elongation acrylic adhesive with structural strength that is ideal for bonding dissimilar materials, thin panel applications where bondline read-through is a concern, or any other application where a flexible bond is needed.