Karnak Karna-Flex is an elastomeric, thermoplastic rubber sealant formulated for use on properly prepared metal, concrete, spray polyurethane foam and plywood roof substrates. Its ease of application, superior adhesion, elasticity and durability make Karna-Flex an ideal repair sealant. Available in a brush mastic or caulking cartridge.

Karna-Flex can be used as a stand-alone repair system or as a joint detailer for the Elasto-Kote coating system.

As a standalone system Karna-Flex should be applied at 2ltrs per m² overall in 2 coats, 1ltr each coat.

Product will cure within approximately 24 hours. If continuing with Elasto-Kote System is desired, allow all repairs to cure before proceeding.

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For more information on any of our waterproofing products or systems, call on 01948 841879 or email the specialists today.