Detailed Product Description

Excellent thermal and cold stability
Good fluid easy to be injected
Stable shrinkage rate
High tear strength silicone rubber

 Silicone rubber for computer keyboard

1) Basic model: LSR2009-40A/B, LSR2010-40A/B,LSR2000-40A/B

2) 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 strength

4) Application

    The series are suitable for making lining of computer keyboard

5) 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 drums

8) 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