Flame retardation cladding adhesive for polystyrene prefoamed beads, and product thereof

The invention provides a flame retardation cladding adhesive for polystyrene prefoamed beads, and a product thereof, and concretely relates to a flame retardation cladding adhesive specially used for cladding polystyrene prefoamed beads, and a modified polystyrene flame retardation foam sheet made by using the flame retardation cladding adhesive. The polystyrene prefoamed bead flame retardation cladding adhesive adopting modified urea formaldehyde resin with toughening and film forming performances as an adhesion medium has excellent flame retardation characteristic, and can effectively improve the flame retardation performance of a polystyrene foam material; and the modified urea formaldehyde resin with toughening and film forming performances adopted in the invention allows a weak acidic substance to be used as a curing agent of the flame retardation cladding adhesive, so damages of a strong acid curing agent similar to phenolic resin to human bodies, environment and apparatuses are avoided.