is a formulated polyol used to produce spray foam insulation in multi layers for roofing, wall and basements with a density of 38 – 45kg/m³. It
contains all the raw material and auxiliaries necessary to produce rigid polyurethane foam including the blowing agent HCFC. The System is free of CFC, asbestos containing materials and chromated copper arsenate . PREX Foam PU-40 along with SYSTEM ISO 44V20L can be used on roofs made of metal, concrete, wood etc.
