If you do get resin on your hands or skin, dissolve it away with a rag soaked in vinegar or use a waterless citrus-based hand sanitizer. [2] X Research source A cotton ball soaked in acetone can remove resin from your skin as well. Make sure to wash your hands thoroughly afterward and moisturize the area. [3] X Research source

If the resin and hardener can be emptied separately, store them for later use in their original container. [6] X Research source

Throw away the resin-y paper towels afterward. Some syringes are too small to wipe inside, and some don’t have removable plungers. If so, don’t worry! The remaining steps will clean it sufficiently.

Acetone and paint thinner are flammable and harmful when inhaled. Use these chemicals in well-ventilated areas away from heat sources or flames. [10] X Research source Solvents work faster when they’re applied while the epoxy resin is still wet.

Make sure only the inside of the barrel and needle are exposed to the solvent. Soaking or submerging your syringe in solvents will shorten its life dramatically.

Use plain water (no soap) for your final rinse to remove soap residue. It’s important to remove all traces of the solvent since prolonged exposure can damage the syringe.

Take care not to scratch or puncture the inside of the syringe. Exposure to the solvent will help loosen and partially dissolve hardened resin, making it easier to pop off.

Resist the urge to unclog the needle by forcing liquid through the needle with the plunger. The syringe may break under the pressure.