FOSTER Vapor Safe Retarder Coating 30-80AF 18.9Ltr USA

FOSTER® VAPOR-SAFE® COATING AF is a water-based, fire resistive, flexible, high solids, vapor retarder finish for most types of thermal insulation, including polystyrene foam. It may be used over dry concrete and finishing cement. It is designed for use in high-humidity areas to resist mold, fungus, and mildew growth on its surface and protect the insulation system from their discoloring and deteriorating effects.

VAPOR-SAFE® 30-80AF™ has water resistance and low water vapor permeance normally only found in solvent-based products. It can be used in high-humidity environments and greatly retards water vapor permeation. It is non-flammable in the wet state.

VAPOR-SAFE® 30-80AF™ is formulated for both indoor and light-duty, commercial, and outdoor use. It is UV resistant. It has a mild, latex “paint type” odor, and is designed for use over the insulation on pipes, vessels, ducts and equipment operating below ambient temperatures.

VAPOR-SAFE® 30-80AF™ is ideal for vapor sealing ASJ, FRK and FSK jackets and board facings at joints, laps and over staple and weld pin punctures. It is an excellent duct board closure sealant. Do not exceed 1/8” (3.2 mm) wet film thickness.

VAPOR-SAFE® 30-80AF™ meets the requirements of Military Specification MIL-PRF-19565C, Type II using method ASTM E96, Procedure A permeance.