Uv Resistant Construction Silicone Sealant For Curtain Wall Stone Application
Construction Silicone Weatherproofing Sealant for Stone Application
TYPICAL PROPERTIES
| Test Method | Property | Unit | Standard | Result | |
| GB/T 13477 (ISO 7390) | Slump | mm |
≤3 |
0 |
|
| GB/T 13477 (ISO 8394) | Extrusion rate | ml/min. | ≥80 |
373 |
|
| GB/T 13477 (ASTM D 2377) | Tack free time | h | ≤3 |
1.2 |
|
| GB/T 13477 (ISO 7389) | Extension recovery | % | ≥80 |
90 |
|
| GB/T 13477 (ISO 8339) | Modulus at 23℃ | MPa | ＞0.4 | 0.74 | |
| GB/T 13477 (ISO 11600) | Movement capability | % | ±20 | ±20 | |
| GB/T 13477 | Adhesion at fixed stretch | No failure | No failure | ||
| GB/T 13477 | Adhesion after heat contract and cold extension | No failure | No failure | ||
| GB/T 13477 | Adhesion at fixed stretch after water immersion | No failure | No failure | ||
| GB/T 23261 | Staining | Stain depth | mm |
≤2.0 |
0 |
| Stain width | mm |
≤2.0 |
0 | ||
| GB/T 13477 (ISO 10563) | Weight loss | % | ≤5.0 | 3.0 | |
|
*GB: Chinese National Standard ASTM: American Society for Testing and Materials ISO: International Standardization Organization |
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SPECIFICATIONS
GB 997 is designed to meet or even exceed the requirements of
Chinese national specification GB/T 23261-2009 20HM
Complies with ASTM C 1248
LIMITATIONS
GB 997 should not be applied:
As structural sealant
To the materials that bleed oils , plasticizers or solvents, such as impregnated wood, oil-based caulks
In totally confined spaces as sealant requires atmospheric moisture for cure
To frost laden or damp surfaces
For continuous water immersion
When surface temperature below 4℃ or over 50℃
FEATURES
One part, neutral cure, easy for application
Non-staining to natural stones and other porous substrates
Outstanding UV and weathering resistance
BASIC USES
GB 997 Silicone Sealant for Stone Applications is specially formulated for
Weatherseal in stone curtain walling and cement panel precasting
Bonding and caulk seal in ceramic engineering
Sealing the joints between stone and other construction materials such as glass and metals etc.
COLOURS
GB 997 is available in black, gray and other customized colours.
PACKAGING
GB997 is available in cartridges(net 300ml),24 pieces to a carton or in sausages (net 500ml),20 pieces to a carton
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.