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DyPerm™ Wrap Vapor Barrier Sheeting
DyPerm Wrap zero-perm vapor retarder sheeting (a barrier) is a three-ply laminate vapor barrier constructed of a 1 mil aluminum foil with 0.5 mil polyester film on both sides. DyPerm Vapor Barrier Wrap is recommended in chilled water and cryogenic pipe insulation and other mechanical insulation applications as part of Dyplast’s insulation system using the ISO-C1 or Phenolic family of insulation. DyPerm Wrap has a zero perm water vapor tramsmission per ASTM E96 (making it better than a vapor retarder), and has excellent handling and puncture resistance characteristics.DyTherm Phenolic insulation may be used for pipework and equipment operating within the process temperature range -292°F to +248°F (-180°C to +120°C).
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