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Precision in measuring epoxy resin is essential, especially during colder months. Whether to measure by weight or volume depends on the manufacturer’s guidance and becomes particularly important in winter, when temperatures can influence the mixing process and curing outcome.
Manufacturer Instructions: The Golden Rule
Always start by checking your resin’s instructions. Some resins, such as the One-2-One, specify a 1:1 mixing ratio by volume, meaning you combine equal parts of resin and hardener measured in millilitres. Others, like deep pour or technical resins, often require ratios by weight (for example, 100:55 parts by weight), which call for precise weighing using digital scales. Following the specified method ensures proper chemical reactions and curing, particularly important in chillier conditions.
Winter Mixing Tips
Colder temperatures slow the curing process and can slightly alter the behaviour of resin and hardener. If measuring by weight, ensure all components are at a similar temperature to avoid inconsistency. Always mix resin in a well-controlled indoor space—ideally at room temperature. If your resin is designed to be measured by volume, use accurate measuring jugs or syringes, and ensure both liquids are levelled for precision. Never convert measures from weight to volume (or vice versa) unless your manufacturer specifically says it’s safe to do so, as densities differ between resin types.
When Accurate Measuring Matters Most
Accurate measurement becomes critical when working with new resins, using large quantities, or tackling projects where a proper cure is essential, such as tabletops, castings, or jewellery. Following the recommended method prevents problems like incomplete curing, sticky surfaces, or weak final results—issues often magnified by winter’s lower temperatures.
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For a successful project, always heed the specific recommendations on weight or volume from your resin’s label, especially during the winter season. Consistency and temperature management are just as vital as the correct measuring method. For more guidance on mixing resins in winter, explore our main advice on how much catalyst to add to resin in winter.