Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - How much time do you spend 400/600 sanding?
View Single Post
  #16 (permalink)  
Old 05-02-2013, 08:37 PM
mr4speed mr4speed is offline
Registered User
Last photo:
Join Date: Jan 2005
Location: cranston RI
Age: 49
Posts: 614
Wiki Edits: 0

Thanks: 15
Thanked 111 Times in 94 Posts
Originally Posted by Lizer View Post
Would you wet sand body filler? My answer to that question is 'No,' which is why I elected not too. Apparently it's the same answer as Barry's. My fear is the poly primer absorbing too much water and not getting out. I think deadbodyman has actually discussed situations where it lifted when wet sanded. This clearly needs googled. I'd consider spraying 2k over it, blocking and wet sanding that but a concern of Barry's was having too many different substrates on there.

How long is long enough to breathe? After sanding these I'll be sealing in good time and I think it would be devastating to have that moisture trapped in there.
Agree with "no" on wet sanding poly primer and all the reasons you have given. The poly primer I am using now is super porous, would not even consider wet sanding this stuff as it would probably soften it up a bit. And this particular poly must be topcoated with an epoxy or 2K, hence the name its called "base primer".
Reply With Quote