Active Member
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[China]
Address: No.16, Xinyuan Road, Hi-tech Zone, Chengdu 610041, P.R.CHINA
Contact name:nora
Chengdu Guibao Science & Technology Co., Ltd., |
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High Performance Silicone Weatherproofing Sealant Class 50 for Curtain Wall
High performance neutral silicone sealant with excellent weatherability, ideally suited for movement joints of the high rise curtain walls and skyscrapers
FEATURES
One part , excellent weatherability,unaffected by sunlight, rain, snow and ozone.
Neutral cure – suitable for use on metals, coated glass, aluminium panels, terracotta panels, concrete materials, galvanized steel and many other substrates.
Excellent tensile strength and +50/-50 movement capability.
Excellent resistance to temperature extremes, stable and flexible over the temperature from –50 ℃ to +150 ℃.
Excellent unprimed adhesion to a wide variety of construction materials and building components.
Easy of application-ready to use as supplied.
Good compatibility with other neutral silicone sealants.
BASIC USES
GB1098 High Performance Silicone Weatherproofing Sealant is specially designed for:
Weather seal for the high-rise curtain walls and skyscrapers.
Weather seal for the large-sized metal and glass panel curtain walls, spider systems.
Weather seal of other construction joints with higher movement or with higher safety requirement.
COLOURS
GB 1098 is available in black, gray, white and other customized colours.
TYPICAL PROPERTIES (These values are not intended for preparing specifications.)
| Test Method | Property | Unit | Standard(LM) | Result |
| GB/T 13477 (ISO 7390) | Slump | mm | ≤3 | 0 |
| GB/T 13477 (ISO 8394) | Extrusion rate | ml/min. | ≥80 | 696 |
| GB/T 13477 (ASTM D2377) | Tack free time | h | ≤3 | 1.5 |
| GB/T 13477 (ISO7389) | Extension recovery | % | ≥70 | 89 |
| GB/T 13477 (ISO 8339) | Modulus at | |||
| 23℃ | MPa | >0.4 or | 0.8 | |
| -20℃ | MPa | >0.6 | / | |
| GB 16776 (ASTM C 792) | Heat aging | |||
| Weight loss | % | ≤10 | 4.1 | |
| Chalking | Nil | Nil | ||
| Cracking | Nil | Nil | ||
| 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 after UV-water exposure | No failure | No failure | |
*GB: Chinese National Standard ASTM: American Society for Testing and Materials ISO: International Standardization Organization | ||||
SPECIFICATIONS
GB 1098 is designed to meet or even exceed the requirements of:
Chinese national specification.
GB/T 22083-2008 class 50.
Complies with ASTM C 920-2005.
PACKAGING
GB 1098 is available in 350ml disposable cartridges (net 300ml),24 pieces to a carton and sausages (net 590ml),20 pieces to a carton.
STORAGE AND SHELF LIFE
GB1098 should be stored in original unopened containers. It has a shelf life of 12 months from the date of manufacture.
LIMITATIONS
GB1098 should not be applied:
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℃.
To porous substrates such as stone, concrete before confirmation with manufacturer.
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.
Application Method
Install back-up materials or joint fillers, setting blocks, spacer shims, and tapes. Mask areas adjacent to joints to ensure neat sealant lines. Primer is generally not required for non-porous surfaces, but may be necessary for optimal seal performance of certain porous surfaces. So adhesion test is always recommended.
Apply GB 1098 in a continuous operation using dispensing guns. Before a skin forms, tool the sealant with light pressure to spread the sealant against the backing materials and joint surfaces. Remove masking tape as soon as the bead is tooled.
SAFETY INFORMATION
GB 1098 is a chemical product, not edible, no implantation into body and should be kept away from children.
Cured silicone rubber can be handled without any risk to health.
Should uncured silicone sealant contact with eyes, rinse thoroughly with water and seek medical treatment if irritation persists.
Avoid prolonged exposure of skin to uncured silicone sealant.
Good ventilation is necessary for work and cure places.
TECHNICAL SERVICES
Complete technical information and literature, adhesion testing and compatibility testing and are available from Guibao.
DISCLAIMER
The information presented herein is offered in good faith and is believed to be accurate. However, because conditions and methods of using our products are beyond our control, this information should not be used in substitution for customer’s tests to ensure that our products are safe, effective, and fully satisfactory for intended specific applications.
