3D printing technology has revolutionized the dental industry, accelerating and simplifying daily work by producing models and other elements with incredible precision. Resin 3D printing offers remarkable possibilities, but due to the chemical composition of 3D printing resins, safety must always be a top priority, whether you are a beginner or an advanced user of resin 3D printers.

We design our resins to be as safe as possible and to minimize the risk of adverse health effects. Unfortunately, there are still many myths and misconceptions about the storage and use of 3D printing resins, which can lead to dangerous practices and health hazards.

Storing 3D printing resin

EVOCURE resins, like all 3D printing materials, require proper storage. To maximize their lifespan, they should be stored in tightly sealed original containers, away from direct light and heat sources. Do not store resin in the printer’s vat for more than 3 days. If the original bottle is damaged, transfer the resin to another light-blocking bottle, preferably made of HDPE, after filtering it through a funnel with a 190nm filter.

 

Using 3D printing resin

Use nitrile gloves

Always wear nitrile gloves when working with resin, whether you are handling liquid or partially cured resin. Gloves are the best protection against potential allergic reactions, irritations, and chemical burns.

Wash with soap and water

To remove resin from your skin or other printer components sensitive to high-percentage cleaning alcohols, use soap and water. Do not clean your skin or printer components with products containing alcohol or other solvents.

Before printing

• Check if the resin is suitable for printing and not past its expiration date. Pay attention to unusually high viscosity or clumps.
• All pigmented resins settle during storage. This is a normal process and does not affect the properties of the resin. Before starting each print, shake the bottle vigorously, and thoroughly mix the resin in the vat with a spatula.
• To avoid contamination, always filter the resin before pouring it back into the bottle.

Resin disposal

Liquid, partially cured, or alcohol-dissolved resin, along with all contaminated items such as gloves, tissues, etc., should be disposed of in accordance with local environmental and municipal regulations. You can find more information about disposal in a separate article.