How to clean epoxy guns

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Epoxy guns are essential tools for various DIY projects and professional applications, enabling precise and controlled dispensing of epoxy resins. However, proper maintenance is crucial to ensure the longevity and efficiency of your epoxy gun. In this guide, we will walk you through the steps to effectively clean your epoxy gun, allowing you to maintain its performance and extend its lifespan.

Epoxy Gun
Epoxy Gun

Materials Needed:

  • Safety gear (gloves, safety glasses, apron)
  • Rags or paper towels
  • Acetone or isopropyl alcohol
  • Small brush (soft-bristle or toothbrush)
  • Disposable containers
  • Epoxy gun cleaning kit (optional)

Step-by-Step Cleaning Process:

I. Preparation and Safety

Before you begin, ensure you have proper ventilation in your workspace and wear the necessary safety gear to protect your skin and eyes from any potential contact with epoxy or cleaning agents.

II. Empty the Cartridge

If your epoxy gun is equipped with a cartridge, carefully empty any remaining epoxy resin by dispensing it into a disposable container. Be cautious not to waste excess epoxy.

III. Disassemble the Gun

Follow the manufacturer’s instructions to disassemble your epoxy gun. Usually, this involves removing the cartridge, mixing nozzle, and any other removable parts.

IV. Remove Excess Epoxy

Use a rag or paper towel to wipe away any visible epoxy residue from the gun’s exterior. Gently scrub and wipe until the surface is mostly clean.

V. Dismantle the Mixing Nozzle

Epoxy Mixing Nozzle
Epoxy Mixing Nozzle

If your epoxy gun uses disposable mixing nozzles, detach the nozzle and dispose of it properly. If it’s a reusable nozzle, remove it for cleaning.

VI. Soak Nozzle and Parts

Place the disassembled parts, including the mixing nozzle, in a container filled with acetone or isopropyl alcohol. Allow the parts to soak for about 15-20 minutes. This will help soften and dissolve any epoxy that has adhered to the surfaces.

VII. Scrub and Clean

After soaking, use a small brush (soft-bristle or toothbrush) to gently scrub the parts, especially the mixing nozzle. Pay close attention to any crevices or hard-to-reach areas. The softened epoxy should come off more easily at this point.

VIII. Rinse and Dry

Once you’ve scrubbed the parts thoroughly, rinse them under running water to remove any remaining solvent or epoxy. Dry the parts with a clean rag or paper towel.

IX. Reassemble the Gun

Carefully reassemble all the cleaned parts according to the manufacturer’s instructions. Ensure that all components fit snugly and securely.

X. Test Dispense

Before storing your epoxy gun, perform a test dispense with a small amount of epoxy resin to ensure that it is functioning properly and that no residual contaminants are present.

XI. Clean the Exterior

Wipe down the exterior of the epoxy gun with a clean rag or paper towel to remove any lingering residue from the cleaning process.

XII. Dispose of Waste Properly

Dispose of any used cleaning agents, rags, or other waste materials in accordance with local regulations. Do not pour acetone or isopropyl alcohol down the drain; follow proper disposal guidelines.


Regularly cleaning and maintaining your epoxy gun is essential for consistent and accurate dispensing of epoxy resins. By following this step-by-step guide, you can effectively remove epoxy residue and keep your epoxy gun in optimal condition for your upcoming projects. Remember to exercise caution, wear appropriate safety gear, and follow manufacturer recommendations to ensure both your safety and the longevity of your epoxy gun.

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Contact Us

If you have any product or other information you need to know, you can email us through the contact form below or call us by phone.

Suzhou Baotailong Electronic Materials Co., Ltd.

Address: Room 1206,
Jinhe International Building,
No. 35 Shishan Road,
Huqiu District,
Suzhou, Jiangsu,

Tel: +8618706202541