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Do I need to use the primer if Liquid roof is to be applied to a deteriorating rubber RV roof?

0 votes
asked Oct 13, 2015 in Liquid Roof by anonymous

2 Answers

0 votes

Hello here are the conditions you would need the primer

Thank you



The following roof types-substrates do NOT require the ProFlex primer only one coat of the Liquid EPDM

  • Various Metal Roofing systems
    • Weathered Galvanized
    • Weathered Aluminum
    • Weathered Copper
  • Any original epdm rubber roofing system
  • Concrete where there is little foot traffic
  • Sprayed Urethane Foam
  • Fiberglass
  • PVC
  • Acrylic Sheet and any acrylic based products
  • Weathered Vinyl

The below roof types- substrates will require one coat of the ProFlex primer prior to application of Liquid EPDM Rubber

  • Built up asphalt roofs-You would first need to apply our ProFlex primer before applying the liquid EPDM.
  • Asphalt shingles-First needing our ProFlex primer
  • Modified asphalt roll roofing - First needing our ProFlex primer
  • Stainless steel-Only if sanded
  • Neither the primer or Liquid EPDM can be applied to glass
  • Silicone caulk-Any silicone caulk needs to be removed and replaced with either butyl or acrylic caulk
  • Heavily trafficked surfaces like decks or porches
  • Hypalon Membrane-ProFlex primer is required first
  • Wood applications that are first primed with our ProFlex primer
  • Any roof where a 3rd party coating such as an elastomeric or acrylic was previous applied
  • TPO
  • Polyurethane foam
  • Polyurea
answered Oct 13, 2015 by admin
0 votes
if you have substrate damage we do not suggest using the product.  This product is only for roofs that do not have any substrate damage

Thank you
answered Dec 3, 2015 by admin