This gray color formulation is known through out the industry by the old time master jewelers for its renowned less than minimal shrinkage properties. It has a .50% - .99% shrinkage ratio. It is a very forgiving material and can be vulcanized between 290?F - 315?F. It can also be used in conjunction with other rubber products to reduce the overall cost of a mold. It is highly recommended in applications where extreme tolerance and detail is required. Measures 1-7/8" x 2-7/8". Sold per box of 5 lbs.
