PlatSil® 71-40 Silicone Rubber

SKU:
7140U9

PlatSil® 71-40 Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a translucent, Shore A40 rubber. This is a pourable rubber, but it can be easily thickened with PlatThix Liquid Thickener or Fumed Silica for brush-on application.

FOR INDUSTRIAL/PROFESSIONAL USE ONLY. 

$194.35
Current Stock:
Looking for larger sizes (e.g., drum kits)?
Please contact Customer Service at 800-858-5990 or sales@polytek.com

Technical Specifications

Mix Ratio by Weight:
1A:10B
Shore Hardness:
A40
Pour Time:
90 min.
Demold Time:
24 hr.
Cured Color:
Translucent
Mixed Viscosity:
38,000 cP
Specific Volume:
26.6 in³/lb
Specific Gravity:
1.04
Elongation:
296 %
Tensile Strength:
438 psi
Die B Tear Strength:
98.6 pli
Die T Tear Strength:
32.9 pli
Cure Inhibition:
Contamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.

More Information

Material Calculator

Technical Bulletin

Safety Data Sheet - Part A

Safety Data Sheet - Part B

Kit Components
PlatSil® 71-40 Components
9-lb kit includes: 0.9 lb of PlatSil® 71-40 Part A (~1 pint)
8.1 lb of PlatSil® 71-40 Part B (~1 gallon)
44-lb kit includes: 4 lb of PlatSil® 71-40 Part A (~2 quarts)
40 lb of PlatSil® 71-40 Part B (~5 gallons)

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