PlekoFlex 40 It is a PU one‐component, moisture-curing, elastic joint sealant with a low modulus for sealing building joints. It cures with atmospheric moisture to form a durable rubber seal. PlekoFlex 40 is designed for sealing joints in aggressive environments, such airports runways, terminal ramps, hangers, transportation storage areas and other areas where the various fuels and liquids may come into contact with sealant after curing.
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