-------------- Original message from "Marvin Kaye" <marv@lancaironline.net>: --------------

  If you're trying to prep for bonding and have used and continue using epoxy 
  for the layups then the best degreaser is methylene chloride. It flahses off 
  almost immediately and does not affect the composite in any way, other than 
   leaving it perfectly dust and contaminate free. It also works on polyesters

  "but you can't use it with the towels as wet during application.."

 

  

 

   it is pretty aggressive (the basis for most paint removers). When I'm prepping

   for a  layup I typically wipe the surface down with MC prior to sanding to

   eliminate surface oils, then sand, then a final quick secondary MC wipe with

   a clean paper towel to remove the dust and anything that might have gotten

   onto the surface from my hands or the sanding tools. At that point the surface

   is the most active it can be and it's ready for additional layups. Follow this 
   procedure and you'll never have a delam to deal with. FWIW.