992 Silicone Structural Glazing Sealant
Details
992 Silicone Structural Glazing Sealant
1. Two components;
2. Structural sealing and glazing for curtain wall
Features:
1. Two parts , neutral cure to form an extremely tough elastomeric rubber ensuring a durable, flexible, and watertight bond
2. non-corrosive to metals, coated glass, low-E glass and many other substrates
3. Good weatherability and high resistance to UV radiation ,heat and humidity, and ozone
4. Good stability through wide temperature range from –50 ℃ to +150 ℃
5. Good unprimed adhesion to wide range of substrates
6. High level of mechanical properties
7. Good compatibility with other neutral silicone sealants
COLOURS
Part A (base) of 992 is available in white, part B (curing agent) in black; Black color after mixing.
PACKAGING
992 is available in kit: part A in 200L drums (net 190L), part B in 20L pails (net 18.5L).
Typical properties:
These values are not intended for use in preparing specifications
Test Method | Property | Unit | Standard | Result |
GB/T 13477 (ISO 7390) | Slump | mm | ≤3 | 0 |
GB/T 13477 (ASTM D 2377) | Tack free time | h | ≤3 | 0.8 |
GB/T 13477 | Working time (after 20 min.) |
| ≤10 | 2.2 |
GB/T 531.1 (ISO 7619) 53113477 | Hardness | Shore A | 20～60 | 43 |
GB 16776 (ASTM C 792) | Heat Aging |
|
|
|
weight loss | % | ≤10 | 3.5 |
cracking |
| Nil | Nil |
chalking |
| Nil | Nil |
GB/T 13477 (ISO 8339) | Tensile strength | MPa |
|
|
23℃ |
| ≥0.60 | 1.13 |
90℃ |
| ≥0.45 | 1.02 |
-30℃ |
| ≥0.45 | 1.62 |
water immersion |
| ≥0.45 | 1.01 |
water-UV exposure |
| ≥0.45 | 1.09 |
adhesion failure | % | ≤5.00 | 0 |
extension rate at ultimate tensile strength at 23℃ | % | ≥100 | 140 |
STORAGE AND SHELF LIFE
992 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from the date of manufacture.
