 Silicone Sealant for Construction
Characteristics
- One part, neutral cure, easy to use
- Non-corrosive to metal, coated glass, concrete, marbles, granite, and many other building materials, wide scope of application
- Strong movement, its seal performance will not be affected by allowed extension, contraction or shear deformation of curtain wall.
- Superior weather aging resistance, a service life of 50 years under normal weather conditions
- Outstanding extreme temperature resistance, little property change over the temperature range from 40 to 200
- Excellent unprimed adhesion to most building materials
- Good compatibility with structural sealants
Basic Uses
- Weather and fire-retardant seal of various glass and curtain walls
- Weather and fire-retardant seal of various metal curtain walls, and aluminum curtain walls
- Fire-retardant seal of the joints of plastics, metals and many other materials
- For a variety of other construction and industrial uses
Applicable Standards
Guibao GF998 fire-retardant silicone fire-proof sealant meets or even exceeds following standards
- China JC/T 882-2001
- China GB/T 2408-1996
Colors
- GuibaoGF998 is available in black , gray, white and other custom-made colors.
Packaging
GuibaoGF998 is supplied in 350ml cartridges (net 300ml), in 600ml foil sausages (net 590ml).
Curing Time
On contacting air, GuibaoGF998 begins to cure in a surface-to-interior sequence. Its tack-free time is about 60 minutes, and its final cure and the optimum adhesion occurs about 21 days later.
Storage and Shelf Time
GuibaoGF998 should be stored in cool and dry places over the temperature from 0 to 27, under which the shelf life is nine months from the date of manufacture as included on product packaging.
Typical Technical Properties
|
S/N
|
Property
|
Standard
|
Testing Result
|
Testing Method
|
|
1
|
Stoop (mm)
|
Vertical
|
≤3
|
0
|
GB/T 13477
|
|
Horizontal
|
None
|
None
|
|
2
|
Extrudability ml/min
|
≥80
|
167
|
|
3
|
Tack-free Time h
|
≤3
|
0.9
|
|
4
|
Extension
Modulus
MPa
|
23
|
HM
|
LM
|
0.8
|
GB/T 13477
|
|
-20
|
0.4
or0.6
|
≤0.4
|
|
≤0.6
|
|
|
5
|
Adhesion at fixed extension
|
No failure
|
No failure
|
GB/T 13477
|
|
6
|
Adhesion as hot pressed and cold stretched
|
No failure
|
No failure
|
GB/T 13477
|
|
7
|
Adhesion as soaked in
water and exposed to light
|
No failure
|
No failure
|
GB/T 13477
|
|
8
|
Mass Loss, %
|
≤10
|
3
|
GB 16776
|
|
9
|
Fire Retardant
|
FV-0
|
FV-0
|
GB/T 2408-1996
|
| |
|
|
|
|
|
|
|
Application Limitations
GuibaoGF998 should not be applied
- As structural sealant
- To the materials that will bleed oil, plasticizer or solvent, such as the pregnated wood
- To the places without ventilation, for the sealant requires atmospheric moisture to cure
- To damp or frost-laden surface
- To places damp all the year round or continuously immersed in water.
- When surface temperature is below 4 or over 40
- To the surfaces of copper, lead, zinc-coated metal
Safe-Handling Information
Completely cured Guibao GF998 Weather Proof Sealant is not toxic, but avoid contacting eyes before it is cured. In case it contacts eyes, rinse with plenty of water and seek medical treatment. Uncured Guibao GF998 should be kept away from children. Guibao GF998 gives off low-molecule substance, so construction areas and cure areas should be kept ventilated to avoid the unfavorable effect on human health caused by the over-concentration of low-molecule substance.
Technical Services
Complete technical information and literature, adhesion testing, and compatibility testing are available from Guibao.
Disclaimer
Guibao believes that the information is an accurate description of the typical characteristics and/or uses of the product or products. It is customers responsibility to thoroughly study and test the product in the specific application to determine its performance, efficacy and safety.
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Guibao GF998 Fire-retardant Silicone Weatherproofing Sealant
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