MASTIC · VAPOR BARRIER
PRIMARY II MASTIC
SHC 104-38/39
SHC 104-38/39 is a chlorosulfonated polyethylene (CSPE) rubber based mastic.
Ideal finish for cold insulation including cellular glass, PIR.
Tough, flexible, fire resistant elastomeric finish · Excellent vapor barrier.
Outdoor use with good color retention, chemical and UV resistance.
| Color | SHC 104-38 : White SHC 104-39 : Gray |
| Application | Trowel, Rubber glove |
| Specific Gravity | 1.08 ±0.05 kg/Liter (ASTM D1475) |
| Solids Content | 30% ±1.4 by volume · 50% ±2.0 by weight (ASTM D2369) |
| Coverage | 2.9 kg/㎡ · WFT 2.7 ㎜ · DFT 0.8 ㎜ (SHTM 13) |
| Drying Time | Set to touch: 3 hours · Dry through: 48 hours (25℃ 50%RH · ASTM D1640) |
| Service Temp. | -40℃ ~ 121℃ (SHTM 08) |
| Permeance | 0.01 perms @1.27㎜ DFT (ASTM E96) |
| Flash Point | ≥43℃ (ASTM D3278) |
| Flame Resistance | Class 1 or A (ASTM E84) |
