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Posted

ok  first of all it is  VERY HOT today  near  100  - well i just started spray painting  [ rattle can  ] - my  PETERBUILT cab  and the paint like  hit some spots  and  like  formed  clogged  spots on the truck - i`m gonna let it dry  than i guess i`ve got to sand it right ? - what grit do i use  and should i prime it first  ??

Posted

 i`m gonna let it dry  than i guess i`ve got to sand it right ?

39880987-hombre-de-la-policia-gesticulan

WRONG!!!!! Wassamattaforyou?!? Strip, don't sand, the paint off. That way, you won't beat your head against the wall when you realize that you sanded off all of the details.

 

Posted

i`m not an idiot  ACE  just real new to this  - and learnin  much

Sorry if you feel I implied idiocy. That was not my intent. The "paint stripping" thread is very in depth, and is pinned at the very top of the "questions" section, as Sfan linked to.

Posted (edited)

Really matters with what you painted it with. Super clean if it was enamel.  Lacquer use 91 % alcohol 

Edited by slusher
Posted

If he used lacquer and all he had were a few spits, he might even be able to get away with sandng the spitty parts and polishing it out. If we're talking about enamel, I'd strip it with EZ-Off

 

 

Posted

If he used lacquer and all he had were a few spits, he might even be able to get away with sandng the spitty parts and polishing it out. If we're talking about enamel, I'd strip it with EZ-Off

 

 

Good point Mike. I kind of thought the worse due to the temp being so high..

Posted

 should i prime it first  ??

Yes. Always in any conditions prime all bodies first. After dry, wet sand lightly with a high grit to get things even (you should not sand through to plastic anywhere in this step, if you do re-prime). Then shoot your paint. In my experience it's not the heat, so much as humidity that causes problems. And in N.C. I know you have plenty of that. Your options are - 1. wait until you have a couple of cloudy days in a row when the humidity is lower, 2. wait until fall/winter, 3. find an indoor AC controlled area to paint in.

I'm in Florida. I recommend the latter. Spend the $, get a paint booth. You'll never regret it.

Posted

Yes. Always in any conditions prime all bodies first. After dry, wet sand lightly with a high grit to get things even (you should not sand through to plastic anywhere in this step, if you do re-prime). Then shoot your paint. In my experience it's not the heat, so much as humidity that causes problems. And in N.C. I know you have plenty of that. Your options are - 1. wait until you have a couple of cloudy days in a row when the humidity is lower, 2. wait until fall/winter, 3. find an indoor AC controlled area to paint in.

 

Or paint important parts like bodies early in the morning or late in the day once the temperature / humidity is down.  And do so in the shade, out of direct sunlight.  

Stan, important details...   what brand/type of paint?  How old is the can?  Were you painting outdoors?  Photos go a long way in explaining your issue too.

Paint issues can be from humidity..   temperature- paint can actually dry in the air before hitting the body...  old paint can.. I have a 30 year old can of Duplicolor lacquer. It spit some blobs, I was fortunate to be able to polish them out.  

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