1. Sodium naphthalene sulfonate formaldehyde FDN is also called naphthalene based superplasticizer, poly naphthalene sulfonate, sulphonated naphthalene formaldehyde. Its appearance is the light brown powder. SNF superplasticizer is made of naphthalene, sulfuric acid, formaldehyde and liquid base, and undergoes a series of reactions such as sulfonation, hydrolysis, condensation and neutralization, and then dried into powder.
2. Naphthalene sulfonate formaldehyde is commonly referred to as a superplasticizer for concrete, so it is especially suitable for the prepatation of high- strength concrete, steam-cured concrete, fluid concrete, impermeable concrete, waterproof concrete, plasticized concrete, steel bars and prestressed reinforced concrete. In addition, sodium naphthalene sulfonate formaldehyde can also be used as a dispersant in the leather, textile and dye industries, etc. As a professional manufacturer of naphthalene superplasticizer in China, Longou always provides high quality SNF powder and factory prices for all the clients.