Cleaning your Resin Prints Safely is an essential practice for anyone involved in the 3D printing process. The final quality of the prints largely depends on how carefully and accurately they are washed. But while paying attention to the quality, the safety factor shouldn’t be overlooked. Resin prints should be cleaned safely to avoid causing harm to your health and the environment. The chemical components found in most resins can be hazardous if they come into contact with skin or are inhaled.
Before you dive into cleaning resin prints, you must be well-versed with the procedures and safety measures to adhere to. Throughout this detailed article, we will guide you through the best practices to clean your resin prints safely while achieving high-quality results.
Understanding Exposure to Resin and its Impact on Health
Resins used for 3D printing are polymers that harden under UV light. Although they lend beautifully detailed and smooth results, they come along with some safety concerns. Direct and prolonged exposure to these uncured resins can cause skin irritations, allergic reactions, or more serious systemic toxicities. These problems are primarily because many photopolymer resins are skin sensitizers or irritants.
Being aware of these potential risks is crucial to understanding the importance of safety when working with and cleaning resin prints.
Safety Equipment and Preparation
Having the right safety gear is critical to protecting yourself and others from exposure to toxic materials. Essential safety equipment includes nitrile gloves to protect the hands, safety goggles to safeguard the eyes, and potentially a respirator mask to avoid inhalation of fumes, especially when cleaning large quantities of resin.
Operating in a well-ventilated area can further reduce the risk of respiratory complications. Another crucial aspect is ensuring the work surface is adequately covered to prevent spills that could damage the surface or lead to accidental exposure.
Cleaning Methods for Resin Prints
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Isopropyl Alcohol (IPA) Bath: This method involves immersing the print in a bath of Isopropyl Alcohol, which effectively breaks down the uncured resin, leaving the print clean. When using this method, be sure to use a sealed, resealable container to minimize IPA evaporation and exposure to fumes.
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Ultrasonic Cleaner: An ultrasonic cleaner uses sound waves to agitate a fluid, usually Isopropyl Alcohol or a suitable cleaning solution, to clean the resin prints. The cleaning process is efficient, especially for complex parts with intricate details. The prints must be fully submerged in the cleaning solution during the process to ensure effective cleaning.
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Mean Green Cleaner: It is considered a safer alternative to IPA. Ensure the prints are soaked in Mean Green for about 15-30 minutes, then scrub lightly with a soft brush to remove excess resin.
Post-Cleaning Steps
Once the print is cleaned, it is incredibly crucial to properly dispose of the used cleaning solution. To do this, pour the utilized cleaner into a container and allow it to sit until the resin particles settle at the bottom.
Next, thoroughly rinse your prints under running water to remove any residual cleaning solution. Avoid pouring the used cleaner or any uncured resin down the sink.
Curing the Prints
The cleaning process is followed by the curing process. The curing period should be carefully followed for safety and to ensure the longevity of your prints. You can use a UV curing chamber for a more controlled process. The prints should be cured under UV light until they solidify entirely.
Final Safety Check-In
Despite following all safety steps, accidental spills or splashes can occur during the cleaning process. If uncured resin comes into contact with your skin, immediately wash the area with soap and water. If resin gets into the eyes, promptly rinse with water and seek medical attention.
Keeping the workspace clean is crucial as well. After each cleaning session, wipe down the area with IPA or a specialized cleaning spray.
Lastly, when not in use, all cleaning solutions and uncured resins should be securely stored in a cool, dry place out of reach from children and pets.
Cleaning resin prints safely should be a priority for any 3D printing enthusiast. Respecting the associated risks and taking appropriate precautions will ensure that you can continue to enjoy the creative process of 3D printing while maintaining your health and safety.
