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Material Data Sheet

OP Series - Medium

Material: Medium grade Open Cell Rubber
Description: Medium grade Open Cell Rubber is a porous, elastic material produced from natural rubber.

Features: Excellent recovery after compression, shock and sound absorption, and a non-skid surface.

Applications: Used in sealing against air, dust, and moisture, vibration damping, gasketing and cushioning, and mouse pads.

Open Cell Rubber is available with adhesive or plain and can be supplied in tapes, kiss-cut in rolls, or die cut into individual parts.

Technical Specifications
Physical Property U/M Test Method Value Notes
Accelerated Aging % 7 days @ 158F 20 +/- Change in Compression Deflection
Compression Force Deflection PSI 22 hrs @ 158F 11 @50% Load
Density PCF   32 +/- 4
Elongation %   200 Minimum
Maximum Temperature F   180  
Minimum Temperature F   -20  
Resistance   Water Excellent  
Resistance   Ethyl Alcohol Excellent  
Resistance   Methyl Ethyl Ketone Poor  
Resistance   Benzene Poor  
Resistance   Glycerine Excellent  
Resistance   Ethyl Acetate Fair  
Resistance   Ethylene Glycol Excellent  
Resistance   Oil Fair ASTM #1
Resistance   Oil Poor ASTM #3
Resistance   Paraffin Oil Fair  
Shrinkage % 7 days @ 158F 2 Maximum
Tensile Strength PSI   85  

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