1st Seal Gasket Tape (1st Seal GT) is used for sealing joints of aluminum foil-faced duct boards, sheet metal ducts, and FSK-faced insulation systems. 1st Seal GT has been designed to meet a wide range of conditions and applications in the air-conditioning and insulation industries.
1st Seal GT is made of a highly durable closed-cell nitrile rubber compound for better resistance to oil bases and mild chemical products. 1st Seal GT uses an acrylic-base adhesive that is directly coated on the surface, preventing its separation from the surface, thus ensuring proper sealing. The adhesive remains stable at temperatures between -40 to 120℃.
Complied to TUV SUB PSB Class 0 fire rating (Scheme Class 2)
APPLICATIONS
| AVERAGE PHYSICAL PROPERTY | RATING | TEST METHOD |
| Cellular Structure | 95% closed-cell | |
| Density (kg/m³) | 100 | ASTM D1667 |
| Thermal Conductivity Mean Temp @ 10°C | <=0.04 W/mh°c | |
| Temperature Limits °C |
(<=0.0346 Kcal/mh°c) -40°c -- + 105°c |
ASTM C518 |
| Thermal Stability (% shrinkage) | ||
| 7 Days - 200°F | <=4.5 | ASTM C534 |
| 7 Days - 220°F | <=5.5 | ASTM C534 |
| Fire Resistance | UL 94 | |
| Toxicity | 4.9 | NES 713 |
| Water Absorption (% W/W) | <=4.37 | ASTM C272 |
| Mildew Resistance | No Fungal Growth | ~ |
| Weather and Ultraviolet | Good | ~ |
| Ozone Resistance | Excellent | ASTM D1171 |
| Chemical Resistance | Good | ~ |
| Odour |
Negligible |
~ |
| Elongation | Excellent | ~ |
| Manufacturing Process |
Without CFC, Asbestos Chlorine, Fibre |
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