Nanjing Xiangshengtai Chemical Co., Ltd.
Main products:sodium tolyltriazole 50% liquid
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  • Contact Person : Ms. Li Julia
  • Company Name : Nanjing Xiangshengtai Chemical Co., Ltd.
  • Tel : 86-0-13914781109
  • Fax : 86-25-84801979
  • Address : Jiangsu,Nanjing,Rm 10-910 of Xinyuan, Baixia District,Nanjing
  • Country/Region : China

Naphthalene Highly Effective Retarding & Water Reducer

Naphthalene Highly Effective Retarding & Water Reducer
Product Detailed
UNF-5A Naphthalene highly effective retarding & water-reducing admixture Specifications

UNF-5A Naphthalene highly effective retarding & water-reducing admixture 1.retarding 2.super-plasticized 3.water-reducing


Product Description

UNF-5A Naphthalene pure highly effective retarding & water-reducing admixtures for concrete has the characteristics of retarding, super-plasticized, water-reducing, less loss of slump. It is very effective concrete admixture to adopt in high temperature area.


Main Properties and Characteristics

Excellent effect of retarding: It can be used in retarding the setting of concrete for 2 hours 

to 36hours, and initial setting and ultimate hardening almost delay the same long time 

corresponding, so that its convenient for conveying at long distance.  

With the water-reducing rate of 12%-25%, it can improve the floating, permeation-proofing ability , and the workability of concrete,  concrete compression resistant, and other physical mechanics will be also gained. 

Reduces cement dosage by 12%-25% without altering compression strength and slump.

Good for many applications: Portland cement, ordinary Portland cement,  Portland fly-ash cement , Portland pozzolan cement and Portland blast Furnace-slag cement. 


Typical performance

UNF-5A improves initial and ultimate strengths. It also gets less loss of slump and improves 

workability of the concrete more than traditional concrete admixture. The lower content of 

Na2SO4, in the admixture, will lead to meet the requirement of the special cement concrete 

engineering project in the coastland and high saline-alkali area.


Properties and Adding
Supply Form Liquid Powder
 Color Dark Brown Brown
 Addition Rate (%) 1.0--2.5 0.4--1.5
 Solid Content (%) 40±1 ------
 Water Content (%) ------ <6
 Fineness (30 meshes sieve %) ------ <5
 Density(g/m, 20°C) 1.20 ------
 PH(Value Solution 5%) 8.0±1.0 8.0±1.0
 Cl Content (%) <1 <1
 Na2SO4 Content (%) <1 <1
 Floating for Cement Net Mortar(cm) >22 >22
 Corrosion Effect to Steel no no



In order to meet specific requirements, UNF-5aA addition rate should be determined by the materials and the conditions of  the experiments and the water-reducing request . The scope of the UNF-5A  liquid addition rate is from  1.0 liter to 2.5 liter per 100 kg cement materials including flyash, and the UNF-5A Powder addition rate is from 0.4kg-1.5kg/100kg cement materials including flyash.



UNF-5A Liquid is available in plastic drum and 1000L/ drum.

UNF-5A Powder is packaged in plastic knitted bag lined with plastic film and net weight is 25kg/bag.

-----------------------------------------------------------------------------------------Shelf life

UNF-5A liquid admixture can be stored for 12 months, and Powder admixture will be stored for 24 months.

Naphthalene Highly Effective Retarding & Water Reducer

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