What is environmentally friendly edge sealing hot melt adhesive? Environmentally friendly edge sealing hot melt adhesive is a kind of adhesive specially used for sticking man-made boards.It is an environmentally friendly, solvent-free thermoplastic adhesive. When the hot melt adhesive is heated to a certain temperature, it changes from a solid state to a molten state.After coating on the surface of wood-based panel substrate or edge sealing material, after cooling to solid state, the material and substrate are bonded together.