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Knowing how long resin takes to cure is crucial when crafting magnets. The right curing process ensures your finished pieces are strong and visually appealing, whether you’re using UV or epoxy resin.
Curing times: UV resin versus epoxy resin
UV resin is the fastest option for making resin magnets, typically hardening within 2 to 3 minutes under a UV lamp. This quick turnaround is ideal for small projects and instant demoulding. “UV–Creation” fast acrylic resin, for example, cures in minutes and gives a clear, glossy result.
With epoxy resin, curing takes longer. Fast formulations like “ICreation” allow demoulding after approximately 6 hours and achieve a full cure in 12–24 hours. Standard epoxy resins may need up to 24 hours to be completely ready.
Tips for reliable curing
- When working with UV resin, ensure all layers receive consistent exposure to a UV lamp. A lamp is essential—curing won’t occur effectively in sunlight alone.
- For epoxy resins, mix components precisely following instructions, and let your magnets cure at room temperature, undisturbed, for best results.
- Humidity and temperature can affect cure times, so work in a stable environment when possible.
When this matters: Choosing the right approach
If you need quick results or are crafting in batches, UV resin’s speed is a major advantage. For larger or thicker magnets, or if UV equipment isn’t available, fast-setting epoxy might be your preference. Always select a resin suited to the size and style of your project for optimal results.
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Understanding cure times helps you avoid common pitfalls and make creative choices in your resin magnet projects. For a full guide covering moulds, colourants, and design ideas, see our main advice on how to make resin magnets.