Adhesive instead of nails, sparko, a synthetic glue for high adhesion strength. good weight gain Used to attach for beauty work on furniture instead of hammering nails. Does not sag in vertical applications Can be bonded to general construction materials such as wood, plywood, artificial wood, plaster, particleboard. Fiber cement, brick, mortar, concrete, aluminium, steel, galvanized steel, walls, floors and composite floors. Safe to use with polystyrene foam and mirror bonding applications.