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GB 1092 High Performance Silicone Structural Glazing Sealant

Structural sealant/ structural glazing/ silicone structural sealant/ building sealant

GB 1092 High Performance Silicone Structural Glazing Sealant
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BASIC USES
GB 1092 High Performance Silicone Structural Glazing Sealant is designed for
• Structural sealing and glazing of the curtain wall of high-rise buildings or skyscrapers
• Structural sealing and glazing in large-sized glass panel curtain walls

FEATURES
• Two parts , neutral cure to form an extremely tough elastomeric rubber ensuring a durable, flexible, and watertight bond
• High level of mechanical properties , high tensile strength and extension rate
• Excellent weatherability and high resistance to ultra-violet radiation ,heat and humidity, and ozone
• Excellent stability over temperature range from –50 ℃ to +150 ℃
• Excellent unprimed adhesion to a wide range of substrates
• Good compatibility with other neutral silicone sealants

COLOURS
Part A(base) of GB 1092 is available in white, part B(curing agent) in black. Black colour after mixing.

PACKAGING
GB 1092 is available in kit: Part A in 200Ldrums (net 190L), part B in 20L pails (net 19L).

For more details, please download: GB 1092 high performance silicone structural sealant

These values are not intended for use in preparing specifications.

Test Method Property Unit Standard Result
GB/T 13477 (ISO 7390) Slump mm ≤3 0
GB/T 13477 (ASTM D 2377) Tack free time h ≤3 1.0
GB/T 13477 Working time (after 20 min.) s ≤10 2.4
GB/T 531.1 (ISO 7619) 53113477 Hardness Shore A 30～60 40
GB 16776 (ASTM C 792) Heat Aging
weight loss % ≤10 3.3
cracking Nil Nil
chalking Nil Nil
GB/T 13477 (ISO 8339) Tensile strength MPa
at 23℃ ≥0.6 1.35
at 90℃ ≥ 0.45 1.01
at -30℃ ≥ 0.45 1.85
water immersion ≥ 0.45 1.21
water-UV exposure ≥ 0.45 1.18
adhesion failure % ≤ 5.0 0
elongation at ultimate tensile strength at 23℃ % ≥ 100 201

*GB: Chinese National Standard
ASTM: American Society for Testing and Materials
ISO: International Standardization Organization

Complete technical information and literature, adhesion testing and compatibility testing results are available from GB.

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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.

Mixing and Dispensing
To obtain the optimal performance of GB 1092, it is recommended that base and curing agent thoroughly mixed using an airless two-part silicone dispensing machine.

GB 1092 should be mixed at a ratio of 9:1～11:1 base to curing agent by volume or 11:1～13:1 base to curing agent by weight.

Lot matching of GB1092 base to curing agent is not required. Before use, it is recommended that curing agent be fully stirred to ensure the homogeneity of all components.

Priming
Priming is not usually required when using GB 1092.But it is essential that adhesion is tested prior to use to decide whether to use primer or not.

Masking and Tooling
Areas adjacent to joints may be masked to ensure a neat sealant line. Do not allow mask tape to touch clean surfaces to which the silicone sealant is to adhere. Tooling should be completed in one continuous stroke after sealant application. Masking tape should be removed immediately after tooling.

Equipment Cleaning
When not being used, it is recommended that the dispensing equipment be purged either with the base component or flush with suitable solvent.
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Contact Us

Chengdu Guibao Science and Technology Co., Ltd.
Tel.: +86-28-8531-1860
Fax: +86-28-8531-8066
E-mail: guibao@cnguibao.com