Fasto Fix SBR+ is based on Modified styrene butadiene latex used for high performance applicaƟons in waterproofing and repairs. It is used for high performance applications in waterproofing and repairs. It is used for repairs of spelled concrete such-floors, columns, beams, chhajjas, slabs & waterproofing for toilets, bathrooms & terraces. It bonds strongly to old & new concrete or plaster.