Craft Resin

CRAFT RESIN Silicone for Mold Making 30A 2.2lb | Durable RTV Silicone

CRAFT RESIN Silicone for Mold Making 30A 2.2lb | Durable RTV Silicone - Main image
$16.79 $23.99 In stock

Category: Silicone Rubber

Craft Resin Silicone 30A is a firmer platinum-cured liquid silicone rubber for mold making and casting. It is designed for projects that need strength, shape retention, and clean detail across repeated pours.

  • Easy 1:1 mix by weight - simple to measure, mix, and pour for smooth, consistent results with less mess and less guesswork.
  • Low-viscosity formula - flows into details and helps reduce trapped bubbles for cleaner surfaces and more accurate molds.
  • Firm 30A silicone for strong, shape-stable molds - ideal for projects that need more structure, better support, and dependable shape retention.
  • High-detail reproduction - captures textures, edges, and fine features for clean, professional-looking results.
  • Fast room-temperature cure - cures in around 4 hours, helping you move from mold making to casting faster.
  • Low-odor, food-safe formula - more comfortable to use indoors and versatile across a wide range of mold making applications.
  • Ideal for resin, soap, candles, and DIY projects - a great choice for casting work where durability, detail, and repeated use matter.

The 1kg 2 part liquid silicone rubber designed for flexible, detailed molds.

Customer Reviews (4.7 / 5 · 25 reviews)

Lucy V. ★★★★★

The firmness is just right for keeping fine details crisp across multiple castings, and the platinum cure means zero smell while working. I’ve pulled about a dozen resin pieces from one mold so far and it still holds its shape perfectly.

Nicholas ★★★★★

Used this for a silicone mold for small resin charms and the 30A firmness held every tiny detail perfectly across three casts so far. The platinum cure had zero smell, which honestly surprised me for a two-part system. It demolded cleanly without any tearing.

Zoe V. ★★★★★

The detail reproduction is incredible—it captured every tiny texture from my original model perfectly. Even after multiple demolds, the shape retention hasn't wavered and it still feels firm.