LY-FDN-A is a naphthalene based high range water reducer. This product is made by industrial Naphthalene, Beta-sulphonate, Formaldehyde and Alkali via sulphuration, hydrolyzation, condensation and neutralization reactions. It belongs to non-air-entraining superplasticizer. LY-FDN-A is non-poisonous, odorless, non-flammable and non-corrosive to steel bars.
LY-FDN-A meets the requirements of concrete admixture of ASTM C494