<p>I suspect that you used an acrylic paint with a solvent that softens ABS plastic.</p>

<p>Your bricks may take quite some time to harden.</p>

<p>It's possible they never will.</p>

CC BY-SA 4.0
2020-04-10T19:17:15.993Z
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
CC BY-SA 4.0
2020-03-20T20:29:21.573Z
2020-03-20T20:29:21.573Z
Dan1138
<p>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.</p>

CC BY-SA 4.0
2020-04-10T19:17:12.640Z
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
CC BY-SA 4.0
2020-03-21T02:02:49.697Z
2020-03-21T02:02:49.697Z
Pubby
<p>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!</p>

CC BY-SA 4.0
2020-03-20T22:22:02.027Z
<MandatoryPuristRant />
Phil B.
<plastics>
LEGO sticky after painting?
mario23
# LEGO sticky after painting?

(Asked by: username_0 on 2020-03-20)

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!

**Tags:** plastics

> **Comments:**
> **username_1**: <MandatoryPuristRant />  

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## 2 answers

### Answer by username_2 on 2020-03-20. Score: 2

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.

> **Comments:**
> **username_0**: 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?  

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### Answer by username_3 on 2020-03-21. Score: 1

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.

> **Comments:**
> **username_0**: 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?  

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