Silicone rubber for general purpose

Silicone rubber for computer keyboard 1) Basic model: LSR2009-40A/B, LSR2010-40A/B,LSR2000-40A/B2) Product Description This series are 2-part translucent liquid silicone rubber suitable for injection molding processes,catalyzed by platinum(LSR2009-40A/B is fast cured type).3) Key Features Good rebound property Excellent thermal and cold stability(-60centigrade 250centigrade) Good fluidity,easy to be injected Stable shrinkage rate High tear strength4) Application The series are suitable for making lining of computer keyboard5) Storage Correctly stored in its original closed container at room temperature (max 27centigrade). SQUARE® LSR20**-40A/B has a shelf life of 180 days. The ready to use LSR20**-40A/B should be kept tightly closed, if it doesnt , it will affect the shelf life. 6)How to use Ready-to-use mixturescomponents A and Bare fed directly to injection molding machine from the original containers by means of a metering end mixing unit called static mixer. The mixtureat the mixing ratio 11 is injected into the heated mould,the mixed silicone rubber will be vulcanized in a few seconds. 7) Packaging The product is available in 20kgs pails or 200kgs drums8) Typical Properties Components Part A Part B Appearance ivory-white transparent ivory-white translucent Viscosity mPa.s 75000 60000 The safe operating period is 3days under airproof condition and 20, after mixing component A and B. The safe operating period will be shorter when the temperature is higher. The silicone rubber properties are as the flowing ,after mixing parts A and B at the mixing ratio 11, then moulding under 150X10 minutes Properties Test method Unit Value LSR2010-40A/B Value LSR2009-40A/B Density DIN53 479A G/cm3 108 108 Shore A hardness DIN53 305 °A 43 43 Tensile strength DIN53 504 S2 N/mm2 5.0 5.0 9) Remarks These figures are for reference only, Please contact us for detail