Answers.Body: <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>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-10T19:17:15.993Z
Answers.Text: 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?
Answers.UserDisplayName: mario23
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-20T20:29:21.573Z
Answers.LastActivityDate: 2020-03-20T20:29:21.573Z
Answers.UserDisplayName: Dan1138
Answers.Body: <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>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-10T19:17:12.640Z
Answers.Text: 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?
Answers.UserDisplayName: mario23
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-21T02:02:49.697Z
Answers.LastActivityDate: 2020-03-21T02:02:49.697Z
Answers.UserDisplayName: Pubby
Body: <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>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-03-20T22:22:02.027Z
Comments.Text: <MandatoryPuristRant />
Comments.UserDisplayName: Phil B.
Tags: <plastics>
Title: LEGO sticky after painting?
UserDisplayName: mario23
ThreadText: # 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 />  
  
  ---
  
  ## 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?  
  
  ---
  
  ### 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?  
  
  ---
  
  