IPDB › China Industry › Chemicals
China, Chinese LNG Gas & Oil Pipelines Special Rigid Polyurethane Polyurea Coatings1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Paint CoatingPipeline CoatingPolyureaPolyurethane
SWD NEW MATERIAL (SHANGHAI) CO., LTD.
Preview:
Product Description Product Description The gas & oil pipelines usually go through complex geological structures and changeable climate zones. The geological structure changes caused by different climate, soil corrosion as well as the displacement and deformation which will greatly damage the buried pipelines. STWD9517 gas & oil pipeline special spray polyurethane coating has excellent comprehensive physical and stable anticorrosion properties which has gained great comment from the designers and applicators and then promoted it into more projects of gas & oil pipelines. STWD Urethane Co., USA developed gas & oil pipeline special rigid polyurethane coating early in the 1970s and has been successfully applied in many areas of the USA. Characteristics It is high reactive and rapid curing and able to be sprayed forming on any bent surfaces of slopes and vertical side without sagging or falling down problems. The coating film is dense tough, flexible and not sensitive to humidity and temperature, high adhesive strength with substrate and cathodic disbondment resistant. It has excellent properties of anticorrosion, impact resistance and wearable, stable chemical resistance with acid, alkali and salt and effective resistance erosion of microorganism and plant roots without crack or peel off after long-term application. Technical parameterSpecific gravity of part A 1.20Specific gravity of part A 1.05Viscosity of part A (23oC) 800-1000 mPa.SViscosity of part B (23oC) 700-800 mPa.SSolid content ≥98%Temperature heated of part A 60-65oCTemperature heated of part B 60-65oCTemperature heated of hoses 60-65oCStatic pressure of part A 2200-2500PSIStatic pressure of part B 2200-2500PSIAllowed pressure difference of A & B ≤300 PSIGel time 35SSurface dry time 70SRe-spray time ≤20 minutes (roughen the surface if exceed 20 minutes) Physical properties Hardness (GB/T 2411) Shore D68-72Tensile strength (GB/T 528-1998) ≥26MPa Elongation rate (GB/T 528-1998) ≥10% Adhesive strength (ASTM D4541) Sand-blasted surface with primer 13-15 MPa Sand-blasted surface without primer 10-12MPa Abrasion resistance(ASTM D4060) ≤10mg Cathodic disbonding resistance (ASTM G95) ≤8mm Impact resistance (ASTM D2794) ≥10JSalt spray test (ASTM B117) 2000hWater absorption rate ASTM D570) ≤2%Spark resistance test (GB7993) 15000v/1mmTemperature variation resistance (GB/T 9278) +150---- -50oCChemical resistance (ASTM D714) Acid resistance: 30% H2SO4, 30d no rust, no bubbles, no peel off Alkali resistance: 30% NaOH, 30d no rust, no bubbles, no peel off Salt resistance: 50 g/L NaCL, 30d no rust, no bubbles, no peel offOil resistance 0# d iesel oil, oil, 30d Salt resistance: 50 g/L NaCL, 30d Application scopes Anticorrosion protection of buried pipelines of gas & petrochemical industry and anticorrosion protection of bridge pier, pipeline coatings
Purchasing Request
Note: Send your purchase request, and we will screen suppliers or manufacturers for you free of charge...