MFC Festic 521 is used for bonding of insulation boards made of extruded polystyrene onto solid base (rendering, bricks, concrete coating etc.) Sealant is frost-proof and is suitable for interior and exterior use as well.
MFC Festic 521 is flexible, frost resistant one-compound bonding sealant based on cement, fine filling and modifying additives.
MFC Festic 521 is used for bonding of polystyrene insulating boards made of extruded polystyrene onto solid foundation (rendering, bricks, concrete coating etc.) Bonding material is frost resistant and optimal for indoors and outdoor use as well.
