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When colouring resin without traditional dyes, powder pigments like mica are a popular choice. Getting the amount right is crucial for rich colour and a perfect finish.
How Much Powder Should You Add?
A good rule of thumb is to begin with 1–3% powder by weight relative to your resin. For example, for every 100g of mixed resin, add 1–3g of powder pigment. Start at the lower end to keep the resin’s clarity and gradually increase until you achieve the desired intensity. Overloading powder may affect transparency and curing, so add in stages for best results.
Mixing Tips for Even Colour
- Pre-mix the powder thoroughly into the resin part before adding the hardener to help avoid lumps.
- Stir slowly and consistently to prevent air bubbles.
- If you’re using a product like the “Trasparente” Epoxy Resin Kit with Mica Powder, follow the kit’s specific instructions for ratios and blend times.
When Getting the Amount Right Matters
Colour strength and resin clarity are easily affected by the amount of powder added. This is especially important for projects like jewellery, river tables, and art pieces where both vibrancy and transparency matter. Too much can result in a cloudy or streaky finish.
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Finding the right powder-to-resin ratio takes a bit of practice, but starting with 1–3% by weight gives reliable results for most artistic and DIY projects. For more techniques and ideas, explore our guide on how to colour resin without dyes.
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