Button Resin Gel Time and Viscosity Guide

Read the numbers as product-specific data

Button Grade Resin is published at 1,100 cPs viscosity, with a 9.5-minute gel time and approximate two-hour curing time. These values belong to this specific transparent polyester casting grade and should be reviewed together with the product TDS.

A number taken from a GP resin, sheet resin or epoxy system is not a substitute. Different grades have different formulations, cure systems and intended roles.

Use viscosity as a discussion point

Viscosity is one part of the processing conversation. For button or small decorative-mould casting, record the actual casting method, mould detail, required appearance and conditions in which the material will be used. The published 1,100 cPs value gives the supplier a common reference point, but it does not by itself confirm a particular mould or downstream process.

Use gel time as a planning reference

The published 9.5-minute gel time helps frame the working-window discussion. Ambient conditions, catalyst system and the actual process record also matter. Follow the product TDS and approved instructions rather than attempting to correct timing through unverified changes.

Record the right facts for technical support

When discussing a process question, share the product and batch, storage history, casting method, timing, ambient conditions, catalyst and accelerator information used under approved procedures, photographs where relevant and the observed result. This provides a factual starting point without assuming a cause.

Frequently asked questions