MASTIC · VAPOR BARRIER
WB VAPOR BARRIER MASTIC · Water-based Mastic
SHC 103-91
SHC 103-90/91 is a fire resistive, flexible vapor barrier for most types of thermal insulation.
Vapor barrier mastic for most thermal insulation including polystyrene foam.
Used over concrete, finishing cement and any kind of metals.
Non-flammable in wet · Suitable for indoor and outdoor use.
| Color | 103-90 : White · 103-91 : Gray |
| Application | Trowel, Glove |
| Specific Gravity (ASTM D1475) | 1.38 ±0.05 kg/Liter |
| Solids Content (ASTM D2369) | 59% ±2.8 by volume · 71% ±3.3 by weight |
| Coverage (SHTM 13) | 3.3 kg/㎡ · WFT 2.4 ㎜ · DFT 1.4 ㎜ |
| Drying Time (25℃ 50%RH · ASTM D1640) | Set to touch: 4 hours · Dry through: 24 hours |
| Service Temp. (SHTM 08) | -29℃ ~ 82℃ |
| Permeance (ASTM E96 · Procedure E) | 0.013 perms @1.9㎜ DFT |
| Flash Point | No Flash Point in wet state |
| Flame Resistance (ASTM E84) | Class 1 or A |
| VOCs (US EPA Method 24) | <36 g/L |
