Tin Silicone Mold Rubbers
TinSil® tin-cured silicone liquid mold rubbers are two-part (Part A & Part B), room temperature curing systems; they are available in a variety of hardnesses. Molds made from these rubbers exhibit high tear strength, good release properties, and resistance to high temperatures.
- Do not require release agents when casting.
- Excellent chemical resistance.
- These rubbers can be poured as supplied or thickened with TinThix liquid thickener for brush-on molds. A brushable/sprayable version called TinSil Brush/Spray 25 is available for use by hand or with low cost, portable equipment.
Typical Uses & Casting Materials
- Resin casting (polyurethane, polyester, epoxy)
- Foam casting
- Wax casting
- Sculpture reproduction
- Soap and candle making
- Plaster casting
- Cold cast bronze art
- Low-melt metals
NOTE: TinSil molds do have a limited shelf-life when cured (library life) so they are not recommended for extended storage. TinSil 80-Series molds are designed for longer library life compared to TinSil 70-Series and other available tin silicone systems. TinSil liquid rubbers also shrink slightly on cure (~1%). For silicone rubber options with longer library life and no shrink on cure, view our platinum silicone rubbers.
There are two series within the tin silicone mold rubber line:
Tin Silicone Rubbers
|TinSil® 70-Series||6 individual product options. Shore A10 to A60 hardness range. Includes two translucent rubber options. 1A:10B, 2A:100B, and 5A:100B mixes available. Demold times ranging from 16 hours to 24 hours. TinSil Brush/Spray 25 (a self-thickening rubber) and TinSil 70-60 (suitable for casting low-melt metals) are included in this series.|
|TinSil® 80-Series||3 individual product options. Shore A15, A30 & A40 hardness options. Only 1A:10B mixes available. 24 hour demold times. 80-Series rubbers have a longer library life than 70-Series rubbers.|
For additional video tutorials, visit the Polytek YouTube Channel.