882 Silicone Insulating Glass Sealant
Details
882 Silicone Insulating Glass Sealant
Special for the secondary seal of insulating glass units used for window and door etc.
Features
1.Two part, neutral fast cure rate, suitable for factory application
2. High level of tensile strength and mechanical properties
3. Good adhesion to a wide range of substrates including coated glass, low -E glass, tempered glass, laminated glass, aluminum and steel spacers etc.
4. Good weatherability and high resistance to ultra-violet radiation ,heat and humidity, and ozone
5. Good resistance to temperature extremes, unaffected performance from –50 ℃ to +150 ℃
6. Good unprimed adhesion to wide range of substrates Good compatibility with other neutral silicone sealants
COLOURS
Part A (base) of 882 is available in white, part B (curing agent) in black, black color after mixing.
PA C PACKAGING
882 is available in kit: part A in 200L drums (net 180L), part B in 20L pails (net 18L).
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 (ISO 9048) | Working time (after 20 min.) | s | ≤10 | 1.4 |
GB/T 13477(ASTM D 2377) | Tack free time | h | ≤3 | 1.0 |
GB/T 531.1 (ISO 7619 ) 53113477 | Hardness | Shore A | 30～60 | 47 |
GB/T 13477 | Tensile strength | MPa | ≥0.6 | 1.2 |
GB 16776 | Adhesion failure | % | ≤10 | 0 |
GB 16776 (ASTM C 792) | Heat aging |
|
|
|
weight loss | % | ≤10 | 4.5 |
chalking |
| Nil | Nil |
cracking |
| Nil | Nil |
STORAGE AND SHELF LIFE
882 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from the date of manufacture.
LIMITATIONS
882 should not be applied:
For structural glazing;
To the materials that bleed oils, plasticizers or solvents, such as impregnated wood, oil-based caulks;
To frost laden or damp surfaces;
For continuous water immersion;
When surface temperature below 4℃ or over 50℃
HOW TO USE
Surface Preparation
Clean all joints removing all foreign matter and contaminants such as oil, grease, dust, water, frost, old sealants, surface dirt, or glazing compounds and protective coatings.
Mixing and Dispensing
To obtain the optimal performance of 882, it is recommended that base and curing agent thoroughly mixed using a two-part silicone dispensing machine.
882 should be mixed at a ratio of 9:1～11:1 base to curing agent by volume, or 11:1～13:1 base to curing agent by weight for optimal performance.
Lot matching of 882 base to curing agent is not required. Before use, it is recommended that curing agent be stirred to ensure the homogeneity of all components.
882 part B curing agent will react with atmospheric moisture, therefore should not be exposed to air for prolonged periods of time.
