What silicone hardness is best for craft mold making?
There is no one‑size‑fits‑all hardness; selection depends on your part complexity, undercuts, casting material and mold size.
Hardness 20‑25 Shore A is our most versatile all‑round option for general craft molds. It balances flexibility, tear strength and shape stability, perfect for candles, soap, resin and medium‑sized plaster crafts.
Choose harness 10‑15 Shore A for highly detailed pieces with deep undercuts. Its soft texture allows easy demolding without tearing fine features.
Go for harness 30 Shore A for large‑size molds or heavy‑weight casting media such as concrete, where higher dimensional stability is required.
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