DESCRIPTION
PREMOULDED MEMBRANE VAPOR SEAL with PLASMATIC CORE (PMPC) is a seven-ply, weathercoated, permanently bonded, semi-flexible bituminous core board. It is composed of a homogeneous, high-melt point bituminous material, in combination with an exclusive plasmatic core suspended mid-point in the bituminous core. This core is sealed under heat and pressure between liners of asphalt-impregnated felt and a glass-mat liner. An asphalt weather coat is applied to the glass-mat liner and covered with a polyethylene anti-stick sheet.

PMPC provides a positive, easy-to-install, economical, true vaporproofing and waterproofing system for horizontal applications. Properly applied, it stops moisture migration in footings, concrete floors and structural slabs. PREMOULDED MEMBRANE VAPOR SEAL with PLASMATIC CORE is both waterproof and vaporproof.

It offers a perm rating of less than 0.002 perms, the lowest in the industry. The product is the ultimate when a true vapor seal is required. Among its unique features is the built-in protection course, which resists jobsite puncturing and the abrasive action of concrete placement. PMPC conforms to ASTM E 1993-98. The exclusive PLASMATIC CORE adds flexibility, greater tensile strength, puncture resistance and excellent handling characteristics. PMPC helps meet and maintain the maximum slab moisture transfer rate of 3 lb./1000 ft.²/24 hours, as allowed by the flooring industry’s specifications.

FEATURES/BENEFITS
* Offers a virtually impermeable vaporproofing system with a perm rating of less than 0.002 perms, the lowest in the industry.
* As the only true vapor barrier for horizontal applications, it is both waterproof and vaporproof.
* Provides excellent tensile strength and puncture resistance.
* Helps prevent warping, buckling or delamination of subsequent flooring systems.
* Conforms to ASTM E 1993-98 specification.
* Greatly reduces fungus, mildew and mold.
* Greatly reduces radon gas from entering the structure.
* Helps meet and maintain the maximum slab moisture transfer rate of 3 lb./1000 ft.²/24 hours, as allowed by the flooring industry’s specifications.

USES
PMPC, when properly applied, is designed to stop moisture migration (liquid or vapor) in footings, concrete floor slabs and structural slabs, which greatly reduces fungus, mildew and mold. It is especially useful under slabs overlaid with wood, tile, epoxy and urethane coatings, carpeting and resilient or seamless flooring systems, since it helps prevent warping and buckling caused by moisture migration. PMPC also greatly reduces radon gas from entering the structure.