conplast sp 430 : high range water reducing admixtures (superplasticisers) description :high range superplasticising admixture. Complies with is : 9103:1999 and bs 5075 part 3. It also conforms to astm c-494 type f and type g depending on the dosages used. uses :speeds up construction, increases work ability and cohesion. Aids pumping by reducing l