Epoxy Resin Types Explained: Coating, Casting, Deep Pour and Flower Preservation
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The right epoxy resin depends on what you are making, how thick the pour is, how long you need to work, and how the finished piece must look.
Coating resin
Coating or art resin is generally selected for relatively thin surface applications such as artwork finishing and decorative top coats. The goal is usually a smooth layer rather than a deep mass.
Casting resin
Casting systems are formulated for moulds and solid shapes. They can suit jewellery, décor, small objects and mould-based projects when the recommended pour depth matches the project.
Deep-pour resin
Deep-pour formulas are designed for thicker sections. Check maximum recommended pour depth, curing profile and heat behaviour.
Flower preservation
Flower preservation combines material selection with careful flower preparation. Dried flowers must be sufficiently dry before encapsulation, and the resin must be suitable for the intended casting depth. See pressed flowers and flower materials.
How resin ratio affects your choice
Some systems use 2:1 ratios by weight while others use different ratios. A 3:1 system cannot be treated like a 2:1 system. Use a digital scale when the product specifies weight measurement and never alter the ratio to change cure speed.
Do not choose resin by ratio alone
Also compare viscosity, pot life, recommended pour depth, demould time, cure time, clarity and application instructions. Browse ArtOrnate resin materials.
FAQs
Can coating resin be used for deep casting?
Only when the manufacturer's technical instructions explicitly allow the required depth.
Is 3:1 resin better than 2:1 resin?
Neither ratio is universally better. They describe different formulation requirements; suitability depends on the project and product specifications.