3d-printingHow-ToBeginner · 4 min read

How to Wash Resin 3D Prints: Step-by-Step Guide

To wash resin 3D prints, soak them in isopropyl alcohol (IPA) or a resin-specific cleaner for 5-10 minutes to remove uncured resin. Then gently agitate or brush the print, rinse with clean water, and let it dry before curing.

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Syntax

Here is the basic process to wash resin 3D prints:

Soak: Place the print in a container filled with isopropyl alcohol (IPA) or a resin cleaner.
Agitate: Gently move or brush the print to loosen uncured resin.
Rinse: Rinse the print with clean water to remove alcohol and residue.
Dry: Let the print air dry completely before curing.

python

def wash_resin_print(print_object):
    soak(print_object, solution='isopropyl_alcohol', time_minutes=10)
    agitate(print_object)
    rinse(print_object, water='clean')
    dry(print_object)
    return print_object

Output

Resin print cleaned and ready for curing

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Example

This example shows a simple step-by-step washing routine for a resin 3D print using isopropyl alcohol.

python

print_object = '3D resin print'

# Step 1: Soak in 90% isopropyl alcohol for 10 minutes
print(f'Soaking {print_object} in isopropyl alcohol for 10 minutes...')

# Step 2: Gently agitate the print in the alcohol
print(f'Gently agitating {print_object} to remove uncured resin...')

# Step 3: Rinse with clean water
print(f'Rinsing {print_object} with clean water...')

# Step 4: Air dry the print
print(f'Letting {print_object} air dry completely before curing...')

print('Print is clean and ready for curing.')

Output

Soaking 3D resin print in isopropyl alcohol for 10 minutes... Gently agitating 3D resin print to remove uncured resin... Rinsing 3D resin print with clean water... Letting 3D resin print air dry completely before curing... Print is clean and ready for curing.

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Common Pitfalls

Common mistakes when washing resin prints include:

Using low concentration alcohol (below 70%), which is less effective at removing resin.
Not agitating or brushing the print, leaving sticky resin behind.
Skipping the rinse step, which can leave alcohol residue that affects curing.
Drying the print improperly, causing water spots or incomplete drying before curing.

Always use fresh alcohol and avoid prolonged soaking to prevent damaging the print.

python

wrong = '''
# Wrong: Soaking in water only
soak(print_object, solution='water', time_minutes=10)

# Right: Soaking in isopropyl alcohol
soak(print_object, solution='isopropyl_alcohol', time_minutes=10)
'''
right = '''
# Correct washing process
soak(print_object, solution='isopropyl_alcohol', time_minutes=10)
agitate(print_object)
rinse(print_object, water='clean')
dry(print_object)
'''

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Quick Reference

Step	Action	Details
1	Soak	Use 90%+ isopropyl alcohol or resin cleaner for 5-10 minutes
2	Agitate	Gently move or brush the print to remove uncured resin
3	Rinse	Rinse with clean water to remove alcohol and residue
4	Dry	Air dry completely before curing under UV light

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Key Takeaways

Always use high concentration isopropyl alcohol (90% or above) to wash resin prints effectively.

Gently agitate or brush the print during washing to remove all uncured resin.

Rinse the print with clean water after washing to remove alcohol residue.

Let the print dry completely before curing to avoid defects.

Avoid prolonged soaking to prevent damaging the print's surface.