Naphthalene Sulfonate Formaldehyde (FDN,Na2SO4 ≤ 5%)

Ref Price:
Loading Port:
China main port
Payment Terms:
Min Order Qty:
1000 kg
Supply Capability:
10000 kg/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

FDN is a high concentrate naphthalene-based superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS, etc.. FDN contains no chloride. It conforms to the requirements of chemical admixture specifications for concrete: ASTM C 494, Type F; ASTM C 1017.

1. FDN is suitable to make autotrophic concrete, steam curing concrete, steel concrete, prestress concrete, etc.
2. FDN is compatible with Portland Cement, Portland Slag Cement, Fly-ash Cement, Portland Pozzolanic Cement, etc.
3. FDN can be used to make C80 concrete with slump loss between 50mm and 70mm, or C60 concrete with that between 180mm and 220mm.
4. FDN can be used as a raw material to compound accelerator, retarder, anti-freezing agent and pumping aid to satisfy requirements from different construction projects, techniques, materials and environmental temperatures.

Features and Benefits
1. Non-toxic, non-irritating and no corrosion to steel bars.
2. High water reducing rate: over 25%.
3. Strengthening ability.
4. Improving concrete durability and impermeability.
5. Appropriate setting time.
6. Low sodium sulfate content.
7. No crystallization in winter.
8. Good compatibility with various types of cement.

Uses and Dosages
It can be added during mix or after mix, while the latter approach is preferential.
Dosage normally ranges from 0.4% to 1.0% of the weight of cementitious material, while the recommended dosage is 0.5%.

It’s packed in woven fabric bag with plastic liner. Net weight: 25kg.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range