How to Measure PHR Accurately in Resin

Practical Methods for Measuring PHR

The most reliable way to measure PHR is to use a digital scale for weighing your base resin and additives. For smaller quantities or when weight is less critical, a graduated measuring cup can offer precise volume measurements—especially for liquids. Both approaches help you achieve exact ratios, whether you’re working with pigments, dyes or other resin additives.

Using a clear graduated measuring cup makes it easier to read volumes and pour accurately, aiding consistency in every batch.

Step-By-Step: Accurate Mixing

• Calculate the amount: Work out how much resin you need, then determine the required quantity of each additive based on the percentage per hundred resin.
• Weigh or measure: Use your scale or measuring cup to portion out resin and each component, following your calculated ratios.
• Mix thoroughly: Combine the ingredients, making sure there are no unmixed areas for a uniform cure and effect.

When Accuracy Matters Most

Precise PHR measurement is particularly crucial when working with specialised effects or professional finishes, such as with pearlescent pigments or transparent colourants. This is especially true for projects like jewellery, geodes, or any application where clarity, shade and finish quality are vital.