Product Description A Highly effective super plasticizer with a set retarding effect for producing free flowing concrete. Also a substantial water reducing agent for promoting high early and ultimate strengths. Basic information: 1) Chemical name:Sodium Salt of Polynaphthalene Sulfonic Acid 2) CAS number:36290-04-7 3) Standard: GB 8076-2008 Specification (3 series): Appearance: Light Brown Powder Solid content:92.0% max Sodium sulphate: A 5%/ B 10%/ C 20% max Chloride content: A 0.3% B 0.4% C 0.5% max pH value:7-8 Surface tension:68-72 n/m Cement flowing rate: A 250 B 240 C 230mm min Concrete reducing water rate:20% min Save cement rate: over 18% Steel-bar corrosion: None Specific Data Item FDN-A FDN-B FDN-C Appearance Yellow/ Light Brown Powder Yellow/ Light Brown Powder Yellow/ Light Brown Powder Solid Content % ≤92% ≤92% ≤92% Na2SO4content % <5% <10% <20% Chloride Content, % <0.3% <0.4% <0.5% PH Value 7-9 7-9 7-9 Cement Flow Ability(mm) ≥250 mm ≥240 mm ≥230 mm Fineness 0.315mm( <15%) 0.315mm( <15%) 0.315mm( <15%) Surface Tension (70±1)X 10 -3 N/m (70±1)X 10 -3 N/m (70±1)X 10 -3 N/m Packing: 25kg or 40kg or 750kg or as request. Other Name: superplasticizer for concrete naphthalene water reducer PNS/FDN/SNF, Sodium Salt of Polynaphthalene sulphonic acid CAS:36290-04-7 Sodium naphthalene sulfonate formaldehyde condensate construction chemicals –superplasticizer High-water reducing agent Spring Superplasticizer Export Department MSN: chunduoliu at hotmail.com Skype: springflower_123