Polytek Poly Plasticine Mold Making Clay
- A special blend of non-hardening, sulfur-free modeling clay, designed for creating rubber/silicone/latex molds.
- Non-toxic and odorless with a smooth, firm consistency for sculpting.
- Also makes a great reusable caulk for concrete countertops, mold boxes, and mold shells (mother molds), to make them liquid tight.
- Sold in 5 lb. sizes.
- Download: Polyplasticine Clay Safety Data Sheet: MSDS.