Metal Patch Panel Adhesive Bondline Control (Fast-Set), 1.7 oz. Substrates: Installation and bonding of unprimed metals including aluminum Applications: Patch panel bonding and bonding dissimilar metals. Designed to create uniform bondline thickness despite differences in clamping techniques. Quickly bonds metal patch panels without welding or pop rivets. Built-in color indicator; turns from beige to green as adhesive cures. Tough, modified acrylic formula with the same proven performance characteristics as our OEM door skin hemflange adhesive used on more than 10 million cars and trucks 111B