MARISEAL 250 is a mono component liquid applied roof waterproofing based on polyurethane, manufactured by the company MARIS POLYMERS, consisting of a polyurethane elastomeric membrane without or with internal mesh; which once polymerized conforms an elastic lining, in form of a layer completely bonded to the support (steel, concrete, mortar, ceramic, PU, PU) and other waterproofing membranes like PVC, EPDM and bituminous (for each kind of substrate application with suitable primer, following the indications of the manufacturer). MARISEAL KATALYSATOR is added to MARISEAL 250 (3 % weight) during application of thick layers as an accelerator for faster curing.

MARISEAL 400 is a mono component liquid applied roof waterproofing based on an aliphatic polyurethane manufactured by the company MARIS POLYMERS, that is applied on MARISEAL 250 (once it is dry, following the manufacturer instructions).

 The intended use of this System is the waterproofing of roofs. This LARWK fulfils the Basic works requirements nº 2 (Safety in case of fire), nº 3 (Hygiene, health and the environment) and nº 4 (Safety in use) of the European Regulation 305/11