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Akron Jewelry Rubber™
Engineered in Akron-the polymer capital of the world-our mold rubbers deliver controlled shinkage, excellent cutting qualities, high tear resistance and elongation, and excellent fill and detail reproduction. Because our formulations contain certain waxes, oils, and antioxidants, your molds will enjoy many, many years of productive life. Modern chemistry permits an uncured shelf life of 7 years or more, finished life of over 20 years.
FLEX: 35 Durometer, soft, pliable, well suited to delicate work and thicker molds. Identified by dark blue polyethylene cover.
FIRM: 40 Durometer, preffered for thin molds and applications where extra firmness is required. Light blue polyethylene cover.
