How did you prep aluminum roof before Kool Seal or similar coating

Discussion in 'Roof/Floor Repair & Maintenance' started by Solo camper, Jul 6, 2018.

  1. Solo camper

    Solo camper Member

    Apr 23, 2018
    West virginia
    What kind of prep is needed before applying Kool Seal or other elastomeric coating? Anybody have good results or bad results with applying and how did you do it?
  2. Sjm9911

    Sjm9911 Well-Known Member

    May 31, 2018
    Never done it, but I would sand it, to etch the aluminum, give the paint something to grab to and wash with TSP. To remove grease etc.
  3. nineoaks2004

    nineoaks2004 Every meal is a picnic and every Day is a holiday

    Oct 15, 2006
    Graceville, Florida
    In the Navy we used to prep with Vinegar on the aluminum before painting.

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