Water Reducer Sodium Naphthalene Formaldehyde NZY-FN China Manufacturer

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Water Reducer  Sodium Naphthalene Formaldehyde NZY-FN  China Manufacturer

Product Description


NZY-FN is a naphthalene-based highly effective water reducing admixtures for promoting accelerated early and ultimate 

strength development, commonly referred to as a superplasticizer, also named Naphthalene Sulfonate Formaldehyde 

Condensate (NSF), SNF, PNS and FDN etc.


NZY-FN contains no chloride, non-corrosive to steel bars, non-poisonous, odorless, and non-flammable. It complies with

 ASTM Designation C494, Type F, ASTM C 1017, GB8076-2008 and GB50119-2003 etc.

Water Reducer  Sodium Naphthalene Formaldehyde NZY-FN  China Manufacturer

Product Uses


  • Produces the high slump flowing concrete with no loss in strength.

  • Produces low water/cement ratio concrete with high strengths.

  • Ideal for using in high strength concrete, flowing concrete, early strength concrete, precast steam curing concrete,

    prestressed concrete etc. 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.

  • Be used as basic material to produce others compound admixtures, (such as accelerating and water-reducing admixture, retarding and water-reducing admixture, pumping antifreeze and pumping water-reducing admixture, etc.)

 Water Reducer  Sodium Naphthalene Formaldehyde NZY-FN  China Manufacturer




  • Substantial improvement in workability without increased water or the risk of segregation. Normal set without retardation, even when overdosed. Improving density and surface finish.

  • High water reducing rate. 40% increase in 28 day strengths. High strengths after 8 hours.

  • Compatible with Portland cement, normal Portland cement, Portland Slag Cement, fly ash Cement,  Pozzolanic Cement, etc.

  • Improving workability (slump) of concrete when added into mixing truck.







Actual results(C×0.75%)



Light brown powder

Solid Content %

92 min


Moisture %

8.0 max


Fineness (0.315mm remains) %

15.0 max


PH value

7 - 9


Sodium Sulfate Content %

18.0 max


Chloride Content %

1.0 max


Surface Tension

68-72 Mn/m


Cement Flowing Rate



Water Reducing Rate

18% min


Steel-bar Corrosion





 0.5--1.5% by weight of cement. Exact dosage rates depends on the type of effect sought,quality of cement and aggregates,

 water/cement ratio and ambient temperature. Therefore in many cases it is advisable to carry out trial mix.

NZY-FN can be added directly or added in after dissolved in water. It can be added during mixing and after-mixing(better). The

 after-mixing approach can achieve better results.

Water Reducer  Sodium Naphthalene Formaldehyde NZY-FN  China Manufacturer

Packaging, transport and storage

1. The powder product is packed with 25 ± 0.25kg laminating woven bag. Packaging specifications should meet the user 


2. Powder product is easy to soluble in water, liquid dilution will affect the effective concentration of the product, transport and 

storage should be noted that the anti-leaching, avoid moisture, direct sunlight, kept under seal and away from open flame at 

the room temperature or during the transport.

3. In the case of good storage conditions, valid period is three years. If it is more than 3 years, rechecking is needed for using



1.Q: What is MOQ?

  A: Our MOQ is 1 TON. 

2.Q: Could you offer free sample?

  A: We can provide free samples to you for quality testing. 

3.Q: What about your packing?

  A: For liquid: Flexitank, or IBC tank 1000L

For powder:Woven fabric bag with plastic film liner(  25kg or 1000kg)

 Clients’ packing is workable.

4.Q: How about your productive capacity?

  A: 150000 tons/Year. 

5.Q: What is your delivery time?

  A: Within 7 days after received deposit or L/C at sight.

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