PlatSil® 71-25 Silicone Rubber

SKU:
7125U16

PlatSil® 71-25 Silicone Rubber is a two-part, platinum-catalyzed, liquid silicone system that cures (RTV) to a milky white, Shore A25 rubber. This is a pourable rubber, but it can be easily thickened with PlatThix Liquid Thickener or Fumed Silica for brush-on application. 

PlatSil® 71-25 has been tested by an independent laboratory and was found to comply with 21 CFR 177.2600 (as published in the Code of Federal Regulations) for rubber articles intended for repeated use food contact surfaces when accurately measured, thoroughly mixed, and fully cured.

FOR INDUSTRIAL/PROFESSIONAL USE ONLY. 

$328.90
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:1B
Shore Hardness:
A25
Pour Time:
35 min.
Demold Time:
16 hr.
Cured Color:
Milky White
Mixed Viscosity:
3,500 cP
Specific Volume:
25 in³/lb
Specific Gravity:
1.1
Elongation:
343 %
Tensile Strength:
418 psi
Die B Tear Strength:
137 pli
Die T Tear Strength:
33 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

Kit Components
PlatSil® 71-25 Components
2-lb kit includes: 1 lb of PlatSil® 71-25 Part A (~1 pint)
1 lb of PlatSil® 71-25 Part B (~1 pint)
16-lb kit includes: 8 lb of PlatSil® 71-25 Part A (~1 gallon)
8 lb of PlatSil® 71-25 Part B (~1 gallon)
80-lb kit includes: 40 lb of PlatSil® 71-25 Part A (~5 gallons)
40 lb of PlatSil® 71-25 Part B (~5 gallons)

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