Perma Acri Seal is an acrylic sealant available in brilliant white colour for sealing gaps around window and door frames. Styrofoam board, particle board panels etc. It can also be used for sealing fine moving cracks at the junctions of column beam and brickwork and for sealing general cracks in plasters prior to painting. Can be used to seal the annul a spaces in collar joints of sanitary plumbing and to seal the