A composition comprising a base and curing agent that when mixed, applied to a substrate and cured, comprise a thick non-skid coating having a plow field texture with an aggressive profile and with exceptional mechanical properties which are maintained after exposure to high heat conditions. Thus, the present invention improves the heat radiation system of a direct type back light unit. gypsum fiberboards, cement fiberboards, gypsum wall boards or plaster boards, wherein said prefabricated elements comprise a coating layer formed of at least one skim coat deposited on said prefabricated elements by a coating device; andat least one jointing material, e.