Chengdu Guibao Science & Technology Co., Ltd.,

Glazing Black Structural Silicone Sealant Durable Bonding 12 Months Shelf

Product Details:
Place of Origin: CHINA
Brand Name: GUIBAO
Certification: ISO, SIRIM
Model Number: 999
Payment & Shipping Terms:
Minimum Order Quantity: 2000 pcs
Price: Negotiable
Packaging Details: Cartridges (net 300ml) , sausages (net 590ml).
Delivery Time: 4 working days
Payment Terms: T/T
Supply Ability: 20000 pcs/4 working days
  • Detail Information
  • Product Description

Detail Information

Usage: Construction Main Raw Material: Silicone
Color: Black, Gray, And White Feature: One Part, Neutral Cure
Shelf Life: 12 Months Volume: 300ml/plastic Cartridges,590ml/aluminium Sausages
Package: In Cartons Application: Structural Bonding And Glazing Applications For Glass Curtain Walls, Aluminum Curtain Walls, Terracotta Curtain Walls And Metal Structures. Other Construction Structural Glazing Applications
High Light:

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weatherproof silicone sealant

Product Description

One Part Silicone Structural Glazing Sealant Construction Silicone Sealant


High tensile strength sealant ideally suited for structural bonding and glazing applications.




One part, neutral cure to form an extremely tough elastomeric rubber ensuring a durable, flexible, and watertight bond.

Non-corrosive to glass, metal etc.

Excellent weatherability and high resistance to ultra-violet radiation, heat and humidity, and ozone.

Excellent resistance to temperature extremes, unaffected performance from –50 ℃ to +150 ℃.

Excellent unprimed adhesion to wide range of substrates.

Good compatibility with other neutral silicone sealants.




GB 999 is available in black, gray, and white.




GB 999 is available in disposable cartridges (net 300ml) and sausages (net 590ml).





GB 999 Silicone Structural Glazing Sealant is designed for:

Structural bonding and glazing applications for glass curtain walls, aluminum curtain walls, terracotta curtain walls and metal structures.

Other construction structural glazing applications




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 (ISO 8394) Extrusion rate s ≤10 1.6
GB/T 13477 (ASTM D 2377) Tack free time h ≤3 1.0

GB/T 531.1 (ISO 7619)


Hardness Shore A 20~60 49
GB 16776 (ASTM C 792) Heat Aging      
  weight loss % ≤10 3.6
  cracking   Nil Nil
  chalking   Nil Nil
GB/T 13477 (ISO 8339) Tensile strength



  23℃   ≥0.60 1.08
  90℃   ≥0. 45 0.90
  -30℃   ≥0. 45 1.3
  water immersion   ≥0. 45 1.12
  water-UV exposure   ≥0. 45 1.03
  adhesion failure % ≤5.00 0
  elongation at ultimate tensile strength at 23℃ % ≥100 220

*GB: Chinese National Standard

ASTM: American Society for Testing and Materials

ISO: International Standardization Organization




GB 999 is designed to meet or even exceed the requirements of:

Chinese national specification GB16776-2005 Silicone Sealant for Structural Glazing.

Complies with ASTM C 1184.




As exposed to air, GB 999 begins to cure inward from surface. Its tack free time is about 60 minutes, the full and optimal adhesion forms in about 21 days.




It has a shelf life of 12 months from the date of manufacture.




GB 999 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 substrate surface temperature below 4℃ or over 50℃.




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 999 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.




GB 999 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.



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




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 specific applications.




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