A high concentration of pure natural gum rubber makes Castaldo White firm but flexible. A good all-purpose mold rubber that cuts well. Well-suited for thin molds.
Vulcanize at 310°F for 15 minutes per 1/4" of mold frame thickness. Rubber is 1/8" thick.
Sold in Strips (2-7/8" x 18") or Rolls of 5 lbs. or 50 lbs. Rolls are 18" wide. Made of natural rubber.
(Also available in Ready Cut, see "Related Products" below.)
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