A Comprehensive Guide to Cleaning Agents for 3D Printer Resin

How to clean the resin print? One of the crucial steps in the post-processing of 3D printed resin parts is cleaning off the excess resin. A proper cleaning process ensures that your 3D prints have a smooth and polished finish. There are several cleaning agents available on the market, each with its own set of advantages and disadvantages. This article will provide an in-depth look at the most common cleaning agents, including Ethyl Acetate (EA) and Isopropyl Alcohol (IPA), and explore other alternatives for washing 3D printer resin.

1. Isopropyl Alcohol (IPA)

Isopropyl Alcohol, commonly known as IPA, is a popular cleaning agent in the 3D printing industry. It is effective in removing uncured resin from prints and is relatively easy to find. IPA is available in different concentrations, with 90% or higher being the most effective for cleaning resin prints.

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Pros:

• Effective in removing uncured resin
• Widely available
• Affordable
• Able to use Nitrile Gloves

Cons:

• Flammable
• Can cause skin irritation
• Evaporates quickly, requiring airtight containers for storage

2. Ethyl Acetate (EA)

Ethyl Acetate is another common cleaning agent used for washing 3D printed resin parts. It is a more powerful solvent than IPA and can dissolve uncured resin more quickly. EA is often used in combination with IPA to create an efficient cleaning solution.

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Pros:

• Fast and effective in removing uncured resin
• Less aggressive on the skin than IPA

Cons:

• More expensive than IPA
• Strong odor
• Flammable
• Use Butyl Gloves Only

3. Denatured Alcohol

Denatured alcohol, also known as methylated spirits, is a blend of ethanol and additives, making it unfit for human consumption. It can be used as an alternative to IPA for cleaning resin prints, as it is effective in dissolving uncured resin. Denatured alcohol is typically more affordable than IPA.

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Pros:

• Effective in removing uncured resin
• More affordable than IPA

Cons:

• Flammable
• Can cause skin irritation
• Strong odor
• Slight Tinting

4. Mean Green (or Simple Green)

Mean Green (or its alternative, Simple Green) is a household cleaning product that has gained popularity in the 3D printing community. This environmentally friendly, non-flammable, and non-toxic cleaner can be used to clean resin prints. However, it may not be as effective as IPA or EA in removing uncured resin.

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Pros:

• Environmentally friendly
• Non-flammable
• Non-toxic
• Gentle on the skin

Cons:

• Not as effective as IPA or EA
• Longer soaking times required

5. Ultrasonic Cleaners with Cleaning Solutions

Ultrasonic cleaners use high-frequency sound waves to agitate a cleaning solution, effectively removing uncured resin from 3D printed parts. These devices can be used with various cleaning solutions, including water and dish soap, making them a versatile option for resin cleaning.

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Pros:

• Effective cleaning without manual labor
• Can use various cleaning solutions

Cons:

• More expensive initial investment
• May not be suitable for delicate prints

Conclusion

Selecting the right cleaning agent for your 3D printed resin parts depends on your specific needs and budget. IPA and EA are the most common and effective options, but alternatives such as denatured alcohol, Mean Green, and ultrasonic cleaners can also be viable choices. Always ensure that you follow safety precautions and dispose of used cleaning agents responsibly.

• Use Personal Protective Equipment (PPE)
• Work in a Well-Ventilated Area
• Store Cleaning Agents Properly
• Dispose of Used Cleaning Agents Responsibly
• Educate Yourself on Specific Cleaning Agent Safety

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