|
Epoxy resin is a popular material among artists, DIY enthusiasts, and professionals due to its crystal-clear finish and ability to be tinted in countless colors. However, one of the most common concerns faced by users is the unexpected change in epoxy resin color after curing. You may start with a vibrant hue, only to find a slightly different or duller shade once the resin has hardened. Understanding why this happens—and how to prevent it—can make a significant difference in the quality and consistency of your resin projects.
Why Does Epoxy Resin Color Change?
There are several factors that contribute to color change in epoxy resin during or after the curing process:
Chemical Reaction
When epoxy resin cures, it undergoes an exothermic (heat-producing) chemical reaction. This heat can affect the epoxy resin color, especially if the pigment used is heat-sensitive or not properly mixed.
Pigment Compatibility
Not all pigments are suitable for resin use. Low-quality or incompatible colorants may react with the resin’s hardener, causing discoloration or fading. Using high-grade pigments like Meena Colour ensures better stability and color retention.
UV Exposure
Sunlight and artificial UV light can break down certain pigments or resin formulas, leading to yellowing or fading of the original epoxy resin color. Even indoor lighting can sometimes have a subtle effect over time.
Incorrect Ratios and Mixing
Inaccurate mixing ratios or insufficient blending of resin and hardener can cause uneven curing, which in turn can affect how the color appears once set. Always measure and mix thoroughly to ensure a uniform result.
How to Prevent Epoxy Resin Color Changes
Choose Quality Pigments: Always select resin-compatible pigments like Meena Colour, known for their vibrant tones and excellent compatibility with epoxy resin.
Add UV Stabilizers: Some epoxy resins come with built-in UV protection, but if not, consider adding a UV stabilizer to your mix to reduce the effects of sun exposure.
Use Clear and Fresh Resin: Aged resin can yellow over time, even before use. Always check the freshness and clarity of your resin before starting a new project.
Control the Curing Environment: Avoid extreme temperatures and humidity, which can disrupt curing and alter the final epoxy resin color.
Seal Your Projects: After curing, consider applying a UV-resistant topcoat to help preserve the color and clarity.
For consistent, professional results, using trusted products is key. MB Enterprises proudly supplies high-quality epoxy resins and Meena Colour pigments to help you achieve lasting beauty in every pour.
|