Are these resins mixed by weight or volume?

Mixing Methods: By Weight or By Volume?

The way you mix your resin and hardener varies by product. One-2-One resin is designed for simplicity and uses an equal parts 1:1 ratio by volume. This method is ideal if you prefer using measuring cups—simply pour out equal quantities of Part A and Part B.

Other formulas, such as Art Pro and Icrystal, require more precision and must be mixed by weight instead. Art Pro calls for a 3:2 ratio by weight, while Icrystal is mixed at 2:1 by weight. Always check the instructions on your product label before starting.

Best Practices for Accurate Mixing

• If your resin mixes by volume, use a marked measuring jug for equal parts.
• For weight-based mixing, digital kitchen scales provide the accuracy needed—never estimate by eye.
• Follow the product’s ratio exactly. Too much or too little hardener can affect appearance or performance.

Stir thoroughly and scrape the sides and bottom of your mixing vessel to ensure the components are fully combined, which is especially important for professional results.

When Mixing Method Matters

The correct ratio and method matter most when you’re making jewellery, table finishes, or decorative projects where clarity, strength, and a durable cure are important. Consistency across batches also depends on accurate measuring—so choosing the right approach for your Resin Pro resin ensures a reliable finish every time.