Cleaning a resin miniature before painting is one of the most important steps in the entire hobby process. Even a perfectly printed model can have paint adhesion issues if it is not cleaned properly.
In this guide, we explain how to clean resin miniatures before painting, why this step matters, and how to do it safely and correctly.
Why Cleaning Resin Miniatures Is Necessary
Resin miniatures are made using liquid photopolymer resin. During printing and post-processing, small amounts of residue, oils, or dust can remain on the surface.
If you skip cleaning:
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primer may not stick properly
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paint can bead or peel
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surface defects become more visible
A clean model creates a strong foundation for priming and painting.
What You Need to Clean Resin Miniatures
You do not need special equipment.
Basic supplies:
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warm water
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mild dish soap
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soft toothbrush or small brush
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paper towels
Avoid harsh chemicals or abrasive tools.
Step 1: Inspect the Miniature
Before washing, inspect the model carefully.
Look for:
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remaining support marks
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small surface imperfections
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loose resin dust
This helps you understand what areas need attention after cleaning.
Step 2: Wash the Miniature
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Fill a bowl with warm water
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Add a small drop of dish soap
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Gently scrub the miniature with a soft brush
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Pay attention to recesses and detailed areas
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Rinse thoroughly with clean water
Do not use hot water, as it may soften thin resin parts.
Step 3: Dry the Model Completely
After washing:
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place the miniature on a paper towel
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let it air dry completely
Do not use heat or direct sunlight to speed up drying. Moisture left on the surface can affect primer adhesion.
Step 4: Final Surface Check
Once dry:
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check for remaining residue
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remove dust with a soft brush
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confirm the surface feels clean and matte
At this stage, the miniature is ready for assembly or priming.
Should You Clean Resin Miniatures More Than Once
In most cases, one thorough wash is enough. However, if:
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the model feels greasy
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primer fails to adhere
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you handled the model heavily
A second wash is recommended.
Common Cleaning Mistakes
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Skipping the wash entirely
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Using hot water
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Scrubbing too aggressively
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Priming before the model is fully dry
These mistakes often lead to painting problems later.
Cleaning Before or After Assembly
Both approaches work, but many hobbyists prefer:
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cleaning before assembly for better access
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cleaning again lightly after assembly if needed
Choose the method that feels easiest for your workflow.
Final Thoughts
Cleaning resin miniatures before painting is a simple step that makes a big difference. With warm water, mild soap, and a little patience, you can ensure your primer and paint perform as intended.
Taking a few minutes to clean your model saves time and frustration later and leads to better painting results.