Which Resin Mixing Ratio Should I Use?

← Back to Can I change the A + B mixing ratio?

The right mixing ratio is crucial for successful results with epoxy resins. Understanding which ratio to use will help you achieve a smooth, strong, and crystal-clear finish without curing problems or wasted material.

How to Find Your Resin’s Mixing Ratio

Always check the packaging and instructions supplied with your resin – different products require strict, specific ratios between resin (A) and hardener (B). For example, Art Pro epoxy resin uses a 3:2 ratio, while others such as Trasparente require 100:60 and Icrystal needs a 2:1 proportion. Avoid guessing or ‘eyeballing’—modern resins are precise blends, and errors can lead to tacky surfaces or incomplete curing.

Why Exact Ratios Matter

Mixing ratios are carefully designed for each formulation to ensure a full chemical cure. Even a small change can result in a sticky or brittle outcome, and adjusting the ratio does not speed up processes or improve performance. If instructions specify 3:2, 100:60, or 2:1, always stick to these—never substitute or round off the numbers unless your product’s manufacturer gives express permission to do so.

Practical Tips for Accurate Measuring

Use digital scales for weight ratios—this is more accurate than measuring by eye or by volume.
Check your workspace is level and clean before starting.
Wear gloves and follow any extra safety guidance included with your resin kit.
If you’re unsure, consult the product website or supplier for clarification before mixing.

When This Matters Most

If you’re casting jewellery, making decorative coatings, or working on art projects that require a flawless finish, sticking to the specified mixing ratio is especially important. The correct proportions directly affect clarity, strength, and resistance to scratches or yellowing.

Related guides

Can I Change The A B Mixing Ratio

Choosing the right mixing ratio ensures the quality you expect from your ResinPro project. For further advice on correct mixing and other preparation tips, return to the main page on changing A + B mixing ratios.