KARNAK Karna-Flex is an elastomeric, thermoplastic-rubber sealant formulated for use on properly prepared metal, concrete, EPDM, TPO, and most PVC membrane as well as spray polyurethane foam and plywood roof substrates. Its ease of application, superior adhesion, elasticity and durability make Karna-Flex an ideal repair sealant.
  • One component, elastomeric, SEBS sealant
  • Use to patch & repair metal, concrete, spray foam roofs
  • Ideal for sealing metal screws & gutters
  • Use to repair EPDM, TPO and PVC
  • Forms a durable, weather-resistant membrane
  • Superior protection in ponding areas
  • Stays flexible even at low temps
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N/A White


N/A 3 gallon


N/A Karnak

Part No.

N/A KRN-502MS-3W