Natural rubber specially formulated for less than 1% shrinkage! Can be used alone or combined with Castaldo Gold or White rubber to reduce shrinkage and save money. Use No-Shrink Pink around the model and Castaldo White or Gold for the outside of the mold. Vulcanize at 310°F for 12 minutes per layer of rubber.
Note: This rubber must be vulcanized at precisely 310°F. Use a thermometer to check your vulcanizer accuracy before using this rubber, or use our Dual-Control Vulcanizer, see "Related Products" below.
Sold in boxes of 5 lbs. Each strip measures 2-7/8" x 18".