If you own a 3D printer that uses resin, it's important to know how to dispose of the used resin properly. Improper disposal of resin can damage your sewage system and is very harmful to the environment.

Most people are familiar with the standard process for disposing of plastic. However, uncured resin presents a unique challenge, as it is not safe to simply pour it down the drain. Instead, you need to take care to cure all of the liquid or supports that have come off the model, including any paper towels. Once the resin is cured, you can dispose of it as you would normal plastic. For the isopropyl alcohol, you can cure your container, filter it out, and re-use it. Here are three ways to dispose of 3D printer resin correctly.

Paper Towels and Gloves with Liquid Resin

The first thing you'll want to do is expose the used paper towels and gloves to UV or sunlight until the resin is completely cured. Once the resin is cured, you can dispose of the paper towels and gloves in your regular trash. It's important to use as few paper towels and gloves as possible to minimize waste.


Many people are unaware of the proper way to dispose of resin once they have finished using it. Simply flushing it down the sink is not an option, as the resin must be cured beforehand by exposure to UV light or sunlight.

The process is simple and easy to follow. First, set up your UV light or bring the resin container outside into the sunlight. expose it to the light for a sufficient amount of time, then filter out the cured resin once it has solidified. Dispose of it in the trash, and reuse the isopropyl alcohol or pour it down the drain. By following these simple steps, you can ensure that your resin is properly disposed of without harming the environment.

Old Resin Containers and Bottles

When you're finished with a bottle of resin, many people often overlook the fact that there is still some liquid resin left inside. To properly dispose of it, cut open the bottle and cure the resin with UV light or sunlight. Doing this will harden the remaining resin and make it safe to dispose of in the regular trash.


It's important to know how to dispose of 3D printer resin correctly so that you don't damage your pipes or harm the environment. By following these simple steps, you can ensure that your uncured resin is safely disposed of and that you are not harming the environment.

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