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Why are there oil stains on the surface of black resin parts?

Resin parts are 3D printed using SLA technology. After printing is complete, remove the supports and sand them. After the product is polished, the surface turns a little white, and then we spray it with a layer of transparent protective oil.

The oil is non-toxic and harmless. After you receive it, you can wipe it clean with cotton cloth or wash it with water.

If you have any question with ordering, feel free to contact us.

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Why are there oil stains on the surface of black resin parts?

If you have any question with ordering, feel free to contact us.

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