Liquid Fusion Clear Urethane Glue is PURE MUSCLE! Dries fast and crystal clear, environmentally friendly, works on almost any porous surface, non-foaming. This water-based clear urethane glue works and looks like epoxy but without the mixing or smell. Great for coating eyes, heads and wingcases. It can be thinned down with water for a more penetrating thin formula for heads or wingcases.