 Silicone Sealant for Construction
Characteristics
- Two-part, adjustable cure rate, fast cure speed in deep part , suitable for application in factories.
- Neutral cure, non-corrosive to metal, coated glass, concrete, marbles, granite, and many other building materials
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High module, high strength.
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Giving off low-molecule alcoholic substance when curing, no pungent or odd odor.
- Superior weatherability and resistance against aging, ultraviolet rays, ozone and water.
- Outstanding extreme temperature resistance, cured Guibao 882 will not crack, harden or become fragile even under the temperature of 50 0C, nor degrade or become soft under the temperature of +150 0C, good elasticity all the time.
- Good compatibility with other neutral silicone sealants.
Basic Uses
Special for the secondary seal of insulating glass.
Applicable Standards
Guibao 882 meets or even exceeds the following standards
- U.S.A ASTM C 920-98
- China Q/71304249-7.004-2005
Colors
Guibao 882 part A is white, part B is black, black color as mixed.
Packaging
Guibao 882 part A is supplied in 200L metal drums (net 240kg, 180L), part B in 20L plastic pails (18kg, 18L)
Proportioning
Ratio by volume 911:1
Storage and Shelf Life
Guibao 882 should be stored in cool and dry places over the temperature range from 0 to 27, under which the shelf life is nine months from the date of manufacture as indicated on product packaging.
Curing Time
Crossing linking reaction of Guibao 882 occurs as part A and part B mixed. its cure will not be influenced by ambient moisture. Tack-free time has something to do with the mixture ratio of part A to part B
Typical Technical Properties
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Property
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Standard
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Tested value
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Testing Method
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Droop Degree (mm)
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≤3
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0
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GB/T 13477
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Working Time (20m,s)
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≤10
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2.0
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GB/T 13477
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|
Hardness (HSA)
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3060
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48
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GB/T 531
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Tensile Strength (Mpa)
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≥0. 60
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0.8
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GB/T 13477
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|
Movement capability (%)
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±12.5
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±12.5
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ASTM C 719
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|
Heat Aging
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Qualified
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Qualified
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ASTM C 793
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Application Limitations
Guibao882 should not be applied
- As structural sealant
- To the materials that will bleed oil, plasticizer or solvent such as pregnated wood.
- To the totally confined places, as sealants need atmospheric moisture to cure.
- To damp or frost-laden surface.
- To places damp all the year round or continuously immersed in water.
- Recommendation is not made when surface temperature is below 4 or over 40 .
Safe-Handling Information
Completely cured Guibao 882 is not toxic, but avoid contacting with eyes before it is cured. If that happens, rinse with plenty of water and seek medical treatment. Uncured Guibao 882 should be kept away from children. The product will give off low-molecule substance, so construction area and cure area should be kept well 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
We believe 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. |
Guibao882 Silicone Insulating Glass Sealant
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