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Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: ENTACHEM
  • Model Number: ET-FDN
  • Other Names: NSF,SNF,PNS,FDN
  • Appearance: light brown powder
  • Solid Content %: 92% Min
  • Sodium Sulphate Content: 2%,5%,10%,18%
  • PH Value: 7-9
  • Water-reducing Ratio: 20%-28%
  • application: concrete admixture for readymix concrete
  • CAS NO.: 36290-04-7
  • HS code: 3824401000
  • Usage: Construction, admixture for cement/concrete

Packaging & Delivery

Packaging Details Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg,650kg/jumbo bag
Delivery Time Shipped in 7 days after payment

Poly Naphthalene Sulfonate formaldehyde condensate SNF-B 

Product Description

1.SNF is made of naphthalene, sulfonic acid, formalin and alkali, through sulphuration, hydrolyzation, condensation and neutralization reaction. 


2.SNF have many advantage of :no chloride,good dispersion, water reduction and early-strength effect,good dispersion, water reduction and early-strength effect,without air entraining , no corrosion on steel bars , good compatibility with portland cement .


 Appearance: Powder, light brown hollow particle. Liquid, brown-yellow liquid.




Technology Data


1.Solid content:92% min


2. PH Value: 7-9.


3. Moisture Content: Powder < 8%.


4. Solid content: Liquid 40% ±2%


5. Fineness: Powder 0.315mm residue on sieve < 15%.


6. No chloride salt. No corrosion on steel bars.


7. Sodium Sulfate: FDN-A < 2% (high concentration powder). 


8. Liquidity of Cement Paste ≥ 220mm.


9. Ratio of Bleeding: ≤ 90%.


10. Water Reduction: 15%-25%.


11. Air Content: ≤ 3%.


12. Temporal Distribution for Setting: Concrete Initial, Final Setting -60-+120min.


13. Blend Dosage Range (Normal Condition) FDN-A Liquid 1%~2%. 


14. Ratio of Compressive Strength: 1 day 140%-220%. 3 days 130%-200%. 28 days 120%~140%.


15. On condition that the collapsibility and Compressive Strength are fixed, concrete can be saved by 10 %~20%.



 Packing, Transportation and Storage 
Powder pack: woven fabric bag with plastic liner. Net weight: 25kg±0.1kg or 50kg±0.2kg or 650kg±1.0kg Liquid pack: airtight plastic or iron drums, or tank car in bulk.   


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