Primer coat won't dry

[daveculp]

I'm waiting for a primer coat to dry, so far about 8 days, and it's still tacky.  I used "Rust-oleum Professional Primer", which is made for enamel top coat.  In order to prevent this from happening again I need to figure out where I went wrong.  The object I sprayed is made of resin.  Here are some possibilities:

 

1)  I didn't shake the can enough

2)  I applied too thick of a coat

3)  The part had a oil film, or something, on it

 

Can you think of any more possibilities?  Which mistake is most likely?

 

Thanks,   Dave

 

[LSP_Kevin]

I had exactly this same problem with Rust-oleum Flat Grey Primer, and eventually just overcoated it with Mr. Surfacer. All was fine after that. I believe this is a common problem with this brand's products, so I doubt you did anything wrong.

 

Kev

[1to1scale]

It’s possible that a chemical in the primer reactivated the resin, I had resin wheels react with acetone once, they went sticky, and never dried out.