CRAFT RESIN Silicone Mold Making Kit 15A 1kg | Soft & Flexible Platinum Silicone

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Craft Resin 1 kg Soft Silicone for Mold Making is a flexible 15A silicone designed for creating detailed molds for resin crafts, jewellery, figurines, decorative pieces and other small creative projects. The soft Shore 15A formula creates flexible, moldable silicone rubber that captures fine details and bends easily around complex shapes and undercuts for easier demolding. This two-part liquid silicone rubber mixes at a simple 1:1 ratio, making the 1 kg size a practical choice for small molds, testing new designs and everyday mold-making projects.

  • Easy 1:1 mix by weight - simple to prepare, mix, and pour for smooth, consistent results with less mess and less guesswork.
  • Soft 15A flexibility - helps release delicate cast pieces more easily and works well for detailed shapes that need a softer, more flexible mold.
  • Low-viscosity formula - flows into fine details and helps reduce trapped bubbles for cleaner surfaces and more accurate results.
  • Low-odor formula - more comfortable to use indoors and suitable for a wide range of applications where versatility matters.
  • Fast room-temperature cure - cures in around 4 hours for a quicker workflow, so you can move from mold making to casting sooner.
  • Ideal for creative projects - great for resin, soap, candles, plaster, and other detailed casting work where flexibility and clean release are important.

The 1kg 2 part liquid silicone rubber is ideal for repeated mold making and casting projects

No food-contact claim is made for this product, and we hold no food-contact test for it.

Tracked Delivery

Tracking on every order; delivery options and costs are shown at checkout.

Friendly Support

Our support team usually replies within 1–2 business days.

Product specifications

Craft Resin Silicone is a platinum-cure RTV silicone designed for reliable mould making with smooth pouring, accurate detail capture, and easy demoulding. The formula features a simple 1:1 mix by weight, cures in 3–5 hours at 25 °C, and is available in two hardness options to suit different mould types and casting needs.

Type

Platinum-cure RTV silicone

Mix Ratio

1:1 by weight

Formula

Low-viscosity, low-bubble

Detail Reproduction

Captures fine details, textures, and edges

Hardness

Shore A 15 ± 2 (soft and flexible) / Shore A 30 ± 2 (firm and durable)

Working Time

20–40 minutes

Cure Time

3–5 hours at 25 °C

Linear Shrinkage

≤ 0.1%

Demoulding

Easy release for detailed castings

Durability

Tear-resistant and reusable

Best For

Resin, soap, candles, plaster, concrete, and other casting projects

Shelf Life

12 months

Craft Resin silicone mould making kit with fast-curing silicone for reusable detailed moulds

KEY BENEFITS OF CRAFT RESIN SILICONE RUBBER

White rose-shaped silicone mould for resin casting held by hands

Smooth, Bubble-Free Mold Surface

Low-viscosity liquid silicone rubber for mold making helps reduce trapped air and surface defects, creating smooth mold making silicone results without vacuum equipment.

Close-up of a finger touching a white silicone mold

Dry, Non-Tacky Finish After Cure

This 2 part liquid silicone cures into a clean, dry silicone mold surface that is ready for repeated casting and mold making projects.

Silicone rose mould for resin casting held by hand

Soft & Flexible for Demolding

Shore A 15 silicone for molds allows complex shapes to release smoothly, making it ideal silicone to make molds for resin, soap, wax and other detailed castings.

Silicone rose mould with a finished clear resin casting

Accurate Detail Reproduction

Soft liquid silicone for mold making flows easily into fine textures and edges, delivering precise detail in silicone molds and resin casting molds.

White silicone mould making liquid being poured into a plastic cup

Simple 1:1 Mixing Ratio

This mold making silicone kit features an easy 1:1 ratio by weight for simple measuring and consistent results.

Rose-shaped silicone mould with finished resin flower castings

Reusable Performance

Silicone rubber for mold making maintains flexibility and surface quality through multiple casting cycles, making it a reliable liquid silicone rubber for molds.

Silicone mould hardness comparison showing 0A, 15A and 30A
Silicone mould making demonstration showing clear texture, tear resistance, high liquidity and easy demoulding
Silicone mould making colour guide showing recommended colour paste and colour concentrate to avoid

DESIGNED FOR VARIOUS MATERIALS

Silicone mould making materials including resin, soap, concrete, candle, plaster and polymer clay

Craft with Confidence! Worry-Free.

If you’re not satisfied with our product, simply contact us and we’ll help. Damaged, defective or incorrect items are replaced free of charge; returns follow our Refund policy.