Silicone Moulds for Resin: How to Choose, Use and Care for Them

Posted by

Haanz Team

2026-10-18

On 2026-10-18

Haanz Art GuideFree, practical advice from the team at Haanz Art & Craft Materials

The mould decides the shape, size and finish of every resin piece you make. This guide to silicone moulds for resin explains how to choose a mould, which resin suits small and large moulds, how to pour and demould cleanly, and how to care for your moulds so they keep giving glossy results.

Why silicone moulds?

Cured resin doesn’t stick to silicone, and silicone is flexible, so you can bend the mould to pop the finished piece out. A smooth, shiny mould gives a smooth, shiny piece, so looking after the inside of the mould matters. Silicone moulds can be reused many times.

Choosing silicone moulds for resin

Size and depth: small, shallow moulds such as earrings, charms and pendants suit UV resin or small batches of epoxy. Deeper or larger moulds such as cubes, coasters and bangles need epoxy.
Shape: start with simple shapes. Moulds with very thin parts or deep, narrow points are harder to fill without bubbles.
Finish: check the product photos. A glossy inner surface gives glossy pieces; a matt surface gives a frosted look that can be coated with a thin layer of resin afterwards.

Popular silicone moulds we stock

Jewellery: Pendant Mold (9924921), Earring Silicone Mold (9926161), the Small Earring mold set and a Ring Silicone Mold.
Gifts and stationery: the Pen Silicone Mold, small and large bookmark moulds (S and L) and the Small Letter / Number Mold for names and initials.
Home décor: the Flower Coaster Mold, the Bangle Mold and silicone cube moulds in 0.5″ and 2.0″.
Shapes: square moulds in small and large, and the Waved 15 Circles Mold for making many pieces at once.

We stock over 100 mould designs. Prices change, so see each product page for today’s price. Browse all silicone moulds.

Which resin should you use?

For small, thin moulds, UV resin cures in minutes under a UV lamp; see our UV resin guide. For coasters, cubes, bangles and anything deeper than a few millimetres, use two-part epoxy such as FUJIN Epoxy Resin 100ml + 100ml. Our resin art guide explains epoxy for beginners.

How to fill and demould

Make sure the mould is clean, dry and free of dust. Place it on a flat, level surface.
Mix your resin exactly as the label directs.
Pour slowly into the lowest point of the mould and let the resin spread by itself.
Pop bubbles with a toothpick. For deeper moulds, pour in layers.
Add dried flowers or glitter as you go. Flowers must be completely dry; moisture can cause cloudiness or discolouring.
Let the resin cure fully for the time on the label before demoulding.
Gently peel the mould away from the edges, then push the piece out from the back.

Caring for silicone moulds

Peel off any resin drips after each use.
Wash with mild soap and water, rinse, and let dry fully.
Never scrub the inside with anything rough; scratches show on every piece.
Store moulds flat so they don’t warp, and keep them away from dust.
Avoid cutting tools near the mould edges.

Frequently asked questions

Can I use silicone moulds for clay or soap?

Some moulds also suit clay or soap. Check the product page, and keep moulds you use for food separate from craft moulds.

Why are my resin pieces sticky after demoulding?

Usually the resin wasn’t mixed or cured as directed, or it was demoulded too early. Follow the resin label exactly and allow the full curing time.

Why is my resin piece cloudy?

Common causes are a scratched or dirty mould, moisture, or tiny bubbles. A thin top coat of fresh resin can bring back the shine.

Do you deliver islandwide?

Yes. We deliver across Sri Lanka in 2–5 working days, with cash on delivery, card or bank transfer. You can also visit our shops in Boralesgamuwa and Horana, open every day from 9 AM to 6 PM.

Not sure what to choose? WhatsApp the Haanz team on 0711 515 515 and we’ll help you pick moulds and resin for your next project.

More Haanz Art Guides