Silicone Coaster Moulds

Silicone Coaster Mould - Hexagon - Large

Silicone Coaster Mould - Geode with Centre Hole

Coaster Moulds

From R 34.00

Availability:

Large size coaster, thick base, durable silicone moulds.
For Resin and Polymer Clay Castings. Food grade so suitable for chocolate and fondant.
Our Coaster Moulds give a glossy finish and no release agent is required.
Dimensions given are the inner size in mm i.e. the size of final casting. Some of these make large coasters.

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Overview
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Silicone Moulds: Coasters

Durable Silicone Moulds for Epoxy Resin, Acrylic Resin and Polymer Clay Castings. Food grade so suitable for chocolate and fondant.

Dimensions shown in the name are at the widest point of width and height (internal measurement excluding sides). Our Coaster Moulds have a depth of approximately 5mm.

Add our Special Effect Pigment Powders or Allure Resin Colourants into resin that is cast into these moulds.

Silicone Moulds used with Epoxy Resin

To prolong the life of your mould, remove the casting as soon as it is hard enough. It will continue to harden for days after it is initially hard and release from the mould will become more difficult.

As our moulds are made of high-quality silicone, it is not necessary to use a release agent.

Selection of Epoxy Resin to use

Countertop & Art Coating Epoxy Resin is the best value resin for these moulds. It has a high flow so that air bubbles escape easily and can be poured in a single layer up to 10mm deep which is sufficient for these moulds.

Countertop & Shallow Casting Epoxy Resin is certified for food contact. If the castings will contact food then you should use this resin but note that it can only be poured in a layer up to 5mm deep. This resin has a high flow and will not give you any air entrainment problems.

Medium Casting Epoxy Resin: This resin has a minimum casting thickness of 5mm and a maximum thickness of 20mm. It will take longer to cure than the other resins that we recommend for these moulds, but it has the advantage of generating less wear and tear on moulds than Countertop Resins above. It should not be used in 5mm castings in cold weather as curing time may be too long. This resin has a high flow and will not give you any air entrainment problems.

Acrylic Resin: This water-based resin is usually hard enough to remove from moulds after only 1 hour. It is white (not clear) but beautiful colours can be created with our Allure Resin Colourants. This resin will get very hard over the next week so remove the casting as soon as possible to avoid excess wear and tear on moulds. As the resin is opaque, air entrainment will not be a problem.

All the above resins can withstand the temperature of a coffee mug. Before subjecting epoxy resin coasters to this heat, they should cure for about 2 weeks after removal from the mould. Acrylic Resin coasters should dry for about one week and then be painted with two coats of our Clear Top Coat (Matt or Gloss) to seal them.

Casting resin into your silicone mould

Mix your resin and pour it into the mould. Prior to pouring the resin you can add suitable pigments and colourants and you can use multiple resin layers if required. Carefully use a flame torch to pop any surface air bubbles if required but take care not to damage the mould. Keep the mould on a flat surface in a protected area that is free from insects and dust while the resin cures. Remove the resin casting from the mould once it is hard.

Coasters with Sides

Some moulds specifically sate "with sides". These moulds create a coaster with raised edges.

The side in contact with the mould becomes the topside of the coaster.

Mould
Mould	Hexagonal Square Circular Square (130 x 130 x 5mm) Square (110 x 110 x 5mm): Thick Wall Mould. Disc (130 x 130 x 5mm) Disc (100 x 100 x 5mm) Hexagon - Large (155 x 155 x 5mm) Hexagon - Small with base profile 1 (80 x 90 x 7mm) Hexagon - Small with base profile 2 (80 x 90 x 7mm) Octagon - Very Small (60 x 60 x 5mm) 12-Sided Disc (115 x 115 x 5) Geode (110 x 110 x 5mm) Geode with a hole (120 x 115 x 5mm) Monstera Leaf (100 x 90 x 5mm) Palm Leaf (110 x 110 x 5mm) Tree (110 x 100 x 5mm) Pie 1 (110 x 130 x 5mm) Pie 2 (110 x 130 x 5mm) Pie 3 (110 x 130 x 5mm) Pie 4 (110 x 130 x 5mm) Africa - Large (140 x 125 x 5mm) Flower (120 x 120 x 5mm) Square with Sides (105 x 105 x 5mm) Disc with Sides (105 x 105 x 5mm) Octagon with Sides (105 x 105 x 105mm)