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Why are my LEGO still sticky after I paint them? I use primer beforehand but the acrylic paint is still tacky hours after they're painted. Thanks!

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    <MandatoryPuristRant /> – Phil B. Mar 20 at 22:22
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I suspect that you used an acrylic paint with a solvent that softens ABS plastic.

Your bricks may take quite some time to harden.

It's possible they never will.

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  • I sanded the brick and used primer but it's still sticky even though it's been drying for 3 hours so not sure what I'm doing wrong? – mario23 Apr 10 at 19:17
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Sticky paint is usually caused by painting over a coat that wasn't fully dry. If you did not wait several hours after applying primer, that would be the cause.

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  • I sanded the brick and used primer but it's still sticky even though it's been drying for 3 hours so not sure what I'm doing wrong? – mario23 Apr 10 at 19:17

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