TinSil® 70-Series Silicone Rubbers
These tin-cured (condensation-cure) silicone mold rubbers are soft to mid-range hardness, high-performance, room temperature curing systems offering excellent flexibility and toughness. Molds can be made from relatively simple models as well as highly detailed models with undercuts.
- Shore A10 to A60 hardness liquid mold rubbers
- Excellent chemical resistance
- Reproduces finest detail
- Release agent not necessary for more applications
- Can be accelerated for rapid cure
- Ideal for the most demanding resin casting application
- These rubbers can be poured as supplied or thickened with TinThix liquid thickener for brush-on molds. A brushable/sprayable rubber called TinSil Brush/Spray 25 is available for use by hand or with low cost, portable equipment.
- resin casting (e.g., polyurethane, polyester, epoxy)
- foam casting
- plaster casting
- low-melt metal casting (TinSil 70-60 is specifically designed to handle low-melt metals)
- prototyping applications
- art foundry wax casting
- sculpture and décor reproduction
- hobby, craft, prop and display mold making and casting projects
- view more applications in the Silicone Rubber Photo Gallery (gallery also includes 73-Series, 71-Series & 80-Series rubbers).
NOTE: TinSil molds can inhibit the following casting materials: polyurethane rubbers and Poly-Optic 14-Series Casting Resins. This is especially the case in new tin-cured molds. Do not cast platinum-cured silicone in TinSil molds; they will not cure properly. Consider a platinum silicone rubber when using these casting materials.
|Product||Mix Ratio by Weight||Shore Hardness||Pour Time||Demold Time||Cured Color|
|TinSil® Gel-10||1A:10B||A10||45 min.||16 hr.||Translucent|
|TinSil® 70-11||1A:10B||A10||45 min.||16 hr.||Blue|
|TinSil® 70-20||1A:10B||A20||60 min.||16 hr.||Blue|
|TinSil® 70-25||1A:10B||A25||60 min.||16 hr.||Blue|
|TinSil® Brush/Spray 25||1A:10B||A25||30 min.||16-24 hr.||Translucent|
|TinSil® 70-60||5A:100B||A60||30 min.||24 hr.||Red|
|Softener||Add Silicone Fluid 50cs to TinSil products for a lower-viscosity mix and a softer rubber.|
|Thickener||Add TinThix liquid thickener to thicken the liquid mix for application by brush or trowel.|
|Accelerator||Use TinSil FastCat in place of any TinSil Part A in order to accelerate cure and shorten demold time.|
This video features the making of a poured TinSil 70-25 blanket mold:
For additional video tutorials, visit the Polytek YouTube Channel.