Naphthalene Sulfonate formaldehyde condensate, also known as NSF, SNSF, NSFC, PNS, SNF, concrete additive, concrete admixture, water reducer,water reducing agent.
 

Naphthalene Sulfonate formaldehyde makes cement paticles high dispersancy, low foaming, high range water reducing and obvious strengthening so that we can get advantages of accelerating project mould turnover and construction speed, and also saving cement, improving cement mobility and workability. NSF is a high range concrete admixture of concrete cast-in-place, prefabricating, pump and curing.

NSF has a good adaptability to various cements and NSF is no erodent to reinforcing bar and nonpoisonous and pollution-free.

NSF has been applied to the highway, bridge, tunnel, water conservancy hydroelectric project, port, quay, skyscraper, power engineering, industrial civil building, prestressing force component and high range concrete etc.

drying content: 93% min
Water content: 7% max
Sodium Sulfate: 5% max,10%max 18%max

1.     liquid naphthalene

2.     sulfonation

3.     condensation

4.     neutralization

5.     drying

Necessary raw material:

1.     Crude naphthalene(98%)

2.     Sulphuric Acid(concentration98%)

3.     Formaldehyde(concentration36%)

4.     Sodium Hydroxide(40-60%)