Class 25 Weatherproof General Purpose Silicone Sealant
Class 25 Good Weatherability Resistance General Purpose Silicone Sealant
General purpose, neutral cure silicone sealant for general sealing, general glazing, waterproofing applications
FEATURES
One part, neutral cure.
Easy of application.
Non-corrosive.
Good weatherability and resistance to UV radiation ,heat and humidity, and ozone.
Excellent resistance to temperature extremes, unaffected performance from –50 ℃ to +150 ℃.
Good unprimed adhesion to wide range of substrates.
Good compatibility with other neutral silicone sealants.
COLOURS
GBUIBAO 996 is available in black, gray, white and other customized colours.
BASIC USES
GBUIBAO 996 Neutral Silicone Sealant is formulated for weather and waterproofing seal of high-end window & door, and simple curtain wall.
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 ≤3 |
0 0 |
|
| GB/T 13477 (ISO 8394) | Extrusion rate | ml/min. | ≥80 | 418 | |
| GB/T 13477 (ASTM D2377) | Tack free time | h | ≤3 | 0.7 | |
| GB/T 13477 (ISO 7389) | Extension recovery | % | ≥80 | 90 | |
| GB 16776 (ISO 10563) | Weight loss | % | ≤10 | 7 | |
| GB/T 13477 (ISO 8339) | Tensile Modulus | MPa | ＞0.4 | ||
| GB/T 13477 (ISO 11600) | Movement capability | % | ±25 | ±25 | |
| JC/T 485 | Adhesion after UV exposure |
No failure |
No failure | ||
| 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 water immersion |
No failure |
No failure | ||
*GB: Chinese National Standard
JC/T: Chinese Recommended Standard for Construction Materials
ASTM: American Society for Testing and Materials
ISO: International Standardization Organization
PACKAGING
GUIBAO 996 is available in disposable cartridges (net 300ml),24 pieces to a carton, and sausages (net 500ml),20 pieces to a carton.
SPECIFICATIONS
GUIBAO 996 is designed to meet or even exceed the requirement of:
Chinese national standard.
GB/14683-2003 25HM.
Complies with ASTM C 920.
STORAGE AND SHELF LIFE
GBUIBAO 996 should be stored in original unopened containers. It has a shelf life of 12 months from the date of manufacture.
LIMITATIONS
GUIBAO 996 should not be applied:
For structural glazing.
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℃.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.