• CAS No.: 9084-06-4
• Appearance: Light Yellow Powder
• Model Number: SNF-A, SNF-B, SNF-C
• PH Value: 7-9
• Product description: Poly Naphthalene Sulfonate Formaldehyde,PNS, SNF, FDN

Poly Naphthalene Sulfonate Formaldehyde Description: 
High Range Water-Reducing Admixture 
Poly Naphthalene Sulfonate Formaldehyde Condensate, Concrete Admixture 

Uses 
Poly Naphthalene Sulfonate Formaldehyde produces concrete with extremely workable characteristics referred to as high slump. PNS also allows concrete to be produced with very low water/cement ratios at low or normal slumps. 

Poly Naphthalene Sulfonate Formaldehyde is ideal for use in prestress, precast, bridge deck or any concrete where it is desired to keep the water/cement ratio to a minimum and still achieve the degree of workability necessary to provide easy placement and consolidation.

Poly Naphthalene Sulfonate Formaldehyde Specification: 
Solid Content 92% min 
Moisture 8.0 % max 
Fineness 5.0% max 
PH value 7 - 9 
Chlorides Content 2.0% max 
Surface Tension 68-72 Mn/m 
Cement Flowing Rate 230mm min

Concrete Reducing Water Rate 18% min 

Sodium Sulfate Content 18% max (5%max is also available) 

Addition Rates 
Poly Naphthalene Sulfonate Formaldehyde can be added directly or added in after melt. It can be added during mixing and after-mixing. the afterward approach can achieve better result. the suggested addition rate is 0.75%. 

Poly Naphthalene Sulfonate Formaldehyde Direction 
Prepare solutions as required. 
Direct use of powdery agent is allowed. Alternatively the addition of the agent is followed by water moisturization (water-cement ratio: 60%). 
the agent can be combined with other externally applied agents if pilot development or laboratory experiment succeeds. 
Poly Naphthalene Sulfonate Formaldehyde Package, Storage & Handling 
for powder: Woven fabric bag with plastic liner. Net weight: 25kg +/- 0.1 kg