Master cast 141, 5 litres for every cement bag. this mortar adjective eliminates war bulging, wall cracks and concrete cracks. it is a white liquid (SBR) styrene butadiene copolymer latex. master cast 141 is highly effective for concrete repair. floor screeds and toppings external rendering, waterproofing and tanking, fixing slip, brakes and tires, corrosion protection of steel. specifically designed for use with Portland cement mixes...