Watch out: It has higher shrinkage (up to 1%) and a shorter "library life," often becoming brittle after 1–2 years. 2. Select the Right Hardness (Shore A)
When buying silicone for mold making, the choice depends on your project's detail, the material you're casting (like resin or food), and how long you need the mold to last. 1. Choose Your Cure Type There are two main chemical families for silicone rubbers: buy silicone for mold making
Known as the "workhorse" because it is more affordable and resistant to inhibition. Watch out: It has higher shrinkage (up to
Hardness is measured on the . Lower numbers are softer and more flexible: Mold Making and Casting Products by Category - Smooth-On buy silicone for mold making