How do you manage the health and safety risks of working with resin 3D prototyping materials?

1 Why resin is risky

Resin is a liquid polymer that hardens when exposed to UV light. It can produce fumes, vapors, and dust that can irritate your eyes, skin, and respiratory system. Some resins may also contain toxic or flammable substances that can cause allergic reactions, burns, or fire hazards. Therefore, you need to wear protective equipment, work in a well-ventilated area, and follow the manufacturer's instructions when using resin.

2 How to choose the right resin

Not all resins are created equal. Some are more suitable for certain applications, while others have different properties and safety requirements. For example, standard resins are easy to use and affordable, but they may emit more odors and require more curing time. Engineering resins are stronger and more durable, but they may be more expensive and sensitive to temperature and humidity. Bio-resins are eco-friendly and biodegradable, but they may have limited shelf life and color options. You should research the pros and cons of each type of resin and select the one that meets your needs and budget.

3 How to prepare your workspace

Before you start working with resin, you need to prepare your workspace and ensure that it is clean, organized, and safe. You should have a dedicated area for resin 3D prototyping that is away from direct sunlight, heat sources, and food or drinks. You should also cover your work surface with a disposable or washable material, such as paper, plastic, or silicone. You should have a UV lamp or a curing station for hardening your resin prints, as well as a washing station for cleaning them. You should also have a fire extinguisher, a first aid kit, and a waste bin nearby.

4 How to protect yourself

Working with resin requires wearing appropriate personal protective equipment (PPE) to prevent exposure and injury. You should wear gloves, goggles, a mask, and an apron or a lab coat when handling resin. You should also avoid touching your face, eyes, or mouth while working, and wash your hands thoroughly after finishing. You should also change your gloves and mask regularly, and dispose of them properly. If you experience any symptoms of irritation, allergy, or poisoning, you should seek medical attention immediately.

5 How to clean your resin prints

Cleaning your resin prints is an essential step for ensuring their quality and durability. You should follow the manufacturer's recommendations for the best cleaning method and solvent for your resin type. Generally, you can use isopropyl alcohol (IPA), ethanol, or water to wash off the excess resin from your prints. You should use a soft brush or a spray bottle to gently scrub the surface, and rinse it with clean water. You should also inspect your prints for any defects, such as bubbles, cracks, or warping, and fix them if needed.

6 How to dispose of resin waste

Resin waste is any material that contains uncured or partially cured resin, such as leftover resin in the tank, used gloves and masks, cleaning solvents, and support structures. Resin waste is considered hazardous and cannot be thrown away in the regular trash. You should cure your resin waste under UV light until it is solid and non-sticky, and then dispose of it according to your local regulations. You should also recycle or reuse your resin containers and bottles if possible, or clean them thoroughly before discarding them.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?