Sika SikaBond Gray Polyurethane Interior/Exterior Construction Adhesive (10.1-fl oz)SikaBond Construction Adhesive is a one component polyurethane adhesive that remains permanently elastic to allow for natural movement between bonded surfaces. This adhesive has an accelerated curing time for quick projects. It can be used with paver caps, masonry veneer, acoustic ceiling tiles, floor moldings, door sills, and much more. It has excellent adhesion on all cement based materials, brick, ceramics, glass, metals, wood, epoxy, polyester,