TinSil® 70-11 Silicone Rubber

tinsil-70-11TinSil® 70-11 is a soft, 1A:10B mix, tin silicone that cures to a high performance mold rubber. Molds made from this rubber are best for delicate castings with undercuts.

TinSil 70-11 molds are great for casting polyester, polyurethane and epoxy resins, as well as other materials like wax, soap, and plaster. No release agent is needed for most applications.

This rubber can be poured as supplied or thickened with TinThix liquid thickening agent to make brush-on molds.

TinSil 70-11 & TinSil Gel-10 are the softest rubbers in the TinSil 70-Series & 80-Series.

Only available in a 44-lb kit.


Mix Ratio Shore Hardness Pour Time Cured Color Mixed Viscosity Specific Volume Demold Time
1A:10B A10 45 min. Blue 10,000 cP 25.3 in³/lb 16 hr.
Accessories: TinThix Liquid ThickenerSilicone Fluid 50cs, TinSil FastCat Accelerator


Product Literature: Technical Bulletin | Safety Data Sheets | Physical Properties Bulletin | Sealer & Release Agent Selection Guide

Video Tutorials: For TinSil 70-Series video tutorials, visit the TinSil 70-Series page or the Polytek YouTube Channel.

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