Foster® VAPOR-SAFE® coating 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. VAPOR-SAFE® coating has the low water vapor permeance normally found in only 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® coating is formulated for both indoor and light-duty, commercial, outdoor use. It is UV-resistant. It has a mild, latex "paint type" odor and is designed for use over insulation on pipes, vessels, ducts and equipment operating at cryogenic up to ambient temperatures. VAPOR-SAFE® coating 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 in (3.2 mm) wet film thickness. VAPOR-SAFE® coating meets the requirements of Military Specification MIL-PRF-19565C, Type II using method ASTM E96, Procedure A permeance and is QPD-19565 Listed. VAPOR-SAFE® coating contains no asbestos, lead, mercury or mercury compounds.
Foster® VAPOR-SAFE® Vapor Retarder Insulation Coating, 2 gal Net Content, Water Base, Liquid Form, White, Odor/Scent: Ammonia, Composition: Chlorinated Paraffin, C14-C17, Hindered Amine Light Stabilizer, Tri(Nonylphenol)Phosphate, Decanedioic Acid, Methyl-1,2,2,6,6- Pentamethyl-4-piperidinyl Ester, -20 to 180 deg F, 4 hr Touch, 24 hr Through Dry Time, Flammability Limit: 0, 1.4 Specific Gravity, 33 g/L VOC, Application Method: Airless Spray, Brush, 1.6 sq-m/L Coverage Area
| Application Method | : | Airless Spray, Brush |
| Base Type | : | Water |
| Color | : | White |
| Composition | : | Chlorinated Paraffin, C14-C17, Hindered Amine Light Stabilizer, Tri(Nonylphenol)Phosphate, Decanedioic Acid, Methyl-1,2,2,6,6- Pentamethyl-4-piperidinyl Ester |
| Coverage Area | : | 1.6 sq-m/L |
| Dry Time | : | 4 hr Touch, 24 hr Through |
| Flammability Limit | : | 0 |
| Form | : | Liquid |
| Net Content | : | 2 gal |
| Odor/Scent | : | Ammonia |
| Specific Gravity | : | 1.4 |
| Temperature Rating | : | -20 to 180 deg F |
| VOC Content | : | 33 g/L |
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