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When working with epoxy resin, accuracy in mixing the resin and hardener is vital. An incorrect ratio can cause curing problems and spoil an otherwise flawless project.
Why Mixing Ratio Is Critical
Epoxy resins are designed to cure through a precise chemical reaction between resin and hardener. Deviating from the recommended ratio—whether by adding too much or too little hardener—interrupts this process. This can lead to sticky surfaces, cloudiness, or resin that simply refuses to set. Always follow the manufacturer’s instructions, as mixing ratios can differ: some require a particular ratio by weight, others by volume.
Practical Tips for Measuring and Mixing
To avoid errors, use a digital scale or proper measuring cups, depending on the required method. For instance, the One-2-One Epoxy Resin offers a straightforward 1:1 ratio by volume, making it especially convenient. Stir the mixture gently but thoroughly, scraping the sides and bottom of your mixing container for an even blend—any unmixed material can result in soft spots.
When Precision Matters Most
- Intricate crafts: Small casts and jewellery need particular care as even slight errors show up quickly.
- Large pours: Projects like tabletops or art pieces require more resin, so measurement inaccuracies multiply and can ruin a big investment.
- Faster-curing formulas: Products like ICreation Fast Epoxy demand meticulous mixing for predictable results.
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If you ever experience resin that doesn’t set, the mixing ratio is often the first thing to check. You’ll find more expert tips and troubleshooting in our main guide on why resin may not catalyse.