My understanding is that when POR 15 is exposed to the sun it must be 
topcoated also.
  ----- Original Message ----- 
  
  
  Sent: Tuesday, February 13, 2007 6:19 
  PM
  Subject: Re: [FWDLK] rust prevention - 
  what to do?
  
  Ron-
   
  I painted my boat trailer with POR 15 at my son's suggestion. The trailer 
  has never seen water since I bought it, and the paint is rusted through 
  after only three years of exposure to weather here. I would never use POR 15 
  again--No better than a good enamel.
   
  But that's just my 
  experience------------------------------      
  Ted
   
  
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