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How to Clean Your Epoxy Resin Molds: A Comprehensive Guide

Updated: Aug 16, 2023

Maintaining clean epoxy resin molds is essential for achieving exceptional results in your resin art projects. Residue or debris left in the molds can adversely affect the quality of your castings. In this comprehensive guide, we will explore effective techniques for cleaning epoxy resin molds, ensuring a pristine surface for your creative endeavours. From using 70% alcohol and soap to meticulous inspection, we'll cover everything you need to know to keep your epoxy resin molds clean.


Gather Your Cleaning Supplies:

To clean your epoxy resin molds effectively, gather the following supplies:

  • Isopropyl Alcohol: Opt for 70% isopropyl alcohol, a versatile cleaning agent used in resin art, to dissolve resin residue and sanitize molds.

  • Soap and Water: Mild dish soap or hand soap, combined with warm water, serves as an alternative to isopropyl alcohol, particularly for molds with residual oil or grease.

  • Soft Microfiber Cloths or Wipes: Use these gentle materials to wipe the molds without causing any damage.

  • Disposable Gloves: Protect your hands throughout the cleaning process.


A Step-by-Step Guide to Cleaning Epoxy Resin Molds

Remove Excess Resin

Begin by delicately removing any excess resin from the molds using a soft brush or your fingers. Be cautious not to scratch or damage the mold. Silicone molds are bendy so you can bend them to loosen the cured epoxy resin.


Apply Isopropyl Alcohol or Soap and Water

Choose your preferred cleaning agent based on your mold's condition. For alcohol, pour a small amount onto a soft microfiber cloth or wipe, and thoroughly wipe the mold's interior. If using soap and water, create a soapy solution with warm water and a small amount of soap. Submerge the molds and use a soft cloth or sponge to clean the surfaces.




Inspect for Residue

After cleaning, inspect the molds closely to ensure that no residue or debris remains. Pay special attention to small details and hard-to-reach areas.

Rinse and Dry

Rinse the molds with clean water to remove any soap or alcohol residue. Allow the molds to air dry completely before using them for your next resin project. Ensure they are completely free from moisture, as it can interfere with the resin curing process.


Properly cleaning your epoxy resin molds is crucial for achieving excellent results in your resin art projects. Whether you use isopropyl alcohol or soap and water, coupled with gentle wiping using soft microfiber cloths or wipes, meticulous cleaning ensures a pristine surface for your resin castings. By following the step-by-step guide outlined in this comprehensive blog post, you'll be well-equipped to keep your epoxy resin molds clean, maintaining the quality and beauty of your resin creations.


Now you are ready to use reuse your molds to make more wonderful creations!


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