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The Rectangular Mould is designed for those who want to create precise resin shapes with defined edges. It is especially popular for crafting stylish trays, plaques, and classic geometric designs.
What Shapes Are Possible with the Rectangular Mould?
This mould is crafted specifically for rectangular and square pieces. Its professional silicone and chipboard construction provide straight edges and reliable, repeatable results. You can confidently cast:
- Rectangular trays or bases
- Placemats and coasters with straight sides
- Signage panels or plaques
If you are wishing to create true squares, a dedicated mould such as the Square Mould may offer additional precision and size options.
How Long Should Resin Stay in the Mould?
To achieve smooth demoulding and preserve the life of your formwork, it is recommended to remove your cured resin from the Rectangular Mould within 12 hours after pouring. Waiting any longer can increase the risk of the resin adhering to the silicone and make demoulding more difficult. For best results, check that your resin is firm but not left in so long that removal becomes challenging.
Practical Tips for Demoulding
Avoid using aggressive solvents when cleaning the mould, as these can degrade the silicone over time. For the cleanest finish and easiest removal, ensure the interior is clean and dry before each pour. The mould’s non-stick properties help, but timely removal remains the key to perfect results.
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The Rectangular Mould is ideal when you need straight, reliable shapes in your resin work—whether for decor, gifts, or functional pieces. If you’re exploring more on epoxy resin mould-making, you’ll find further guidance and options on our main mould creation page.