Two-Component Silicone Sealant for Structural Sealing of Large-Scale Curtain Wall Glass

Model NO.
886
Characteristic
Structural Sealing
Promoter Composition
Curing Agent
Composition
Organic Material
Color
Part a: White; Part B: Black
Transport Package
Drum; Pail
Specification
Part A in 190L/drum; Part B in 19L/pail
Trademark
GUIBAO
Origin
China
HS Code
3506100010
Production Capacity
200, 000 Tons/Year
Reference Price
$ 495.00 - 630.00
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Product Description

Two part silicone sealant suited for the secondary seal in structural insulating glass units

Basic Uses


Features
  1. Two part, neutral fast cure rate, suitable for factory application
  2. High level of tensile strength and mechanical properties
  3. Excellent adhesion to a wide range of substrates including coated glass, low -E glass, tempered glass, laminated glass, aluminium and steel spacers etc.
  4. Excellent weatherability and high resistance to ultra-violet radiation ,heat and humidity, and ozone
  5. Excellent resistance to temperature extremes, unaffected performance from -50 ºC to +150 ºC
  6. Excellent unprimed adhesion to wide range of substrates
  7. Good compatibility with other neutral silicone sealants
Colours


Packaging


S pecification


Storage and Shelf Life
GUIBAO 88 6  should be stored in original unopened containers. It has a shelf life of 12 months from the date of manufacture.


Typical Properties
Test Method Property Unit Standard Result
GB/T 13477 (ISO 7390) Slump mm ≤3 0
GB/T 13477 (ISO 9048) Extrusion Rate s ≤10 1.9
GB/T 13477 (ASTM D 2377) Tack Free Time h ≤3 1.3
GB/T 13477 (ISO 8339) Modulus at 10% Extension MPa ≥0.15 0.22
GB/T 531.1 (ISO 7619) Hardness Shore A 30-60 43
GB/T 13477 (ISO 8340) Adhesion at 25% Extension   No Failure No Failure
GB/T 13477 (ISO 8339) Tensile Strength at MPa    
23ºC ≥0.60 1.13
90ºC ≥0.45 0.87
-30ºC ≥0.45 1.58
Water Immersion ≥0.45 1.03
Water-UV Exposure ≥0.45 0.98
GB 16776 (ASTM C 792) Heat aging      
Weight Loss % ≤6 3.4
Chalking   Nil Nil
Cracking   Nil Nil
GB: Chinese National Standard
ASTM: American Society for Testing and Materials
ISO: International Standardization Organization

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
  1. To obtain the optimal performance of GUIBAO 886, it is recommended that base and curing agent thoroughly mixed using a two-part silicone dispensing machine.
Priming
Priming is not usually required when using GUIBAO 886.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.

L imitations  
  1. For structural glazing of glass units onto a metal frame. GUIBAO 992 two part structural silicone and GUIBAO 999 one part structural silicone are recommended for that application
  2. To the materials that bleed oils, plasticizers or solvents, such as impregnated wood, oil-based   caulks
  3. To frost laden or damp surfaces
  4. For continuous water immersion
  5. When surface temperature below 4ºC or over 50ºC
S afety Information  
  1.   away from children.
  2. Cured silicone rubber can be handled without any risk to health.
  3. Should uncured silicone sealant contact with eyes, rinse thoroughly with water and seek medical treatment if irritation persists.
  4. Avoid prolonged exposure of skin to uncured silicone sealant.
  5. Good ventilation is necessary for work and cure places.
Disclaimer
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 intended specific applications.

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Two-Component Silicone Sealant for Structural Sealing of Large-Scale Curtain Wall Glass Two-Component Silicone Sealant for Structural Sealing of Large-Scale Curtain Wall Glass Two-Component Silicone Sealant for Structural Sealing of Large-Scale Curtain Wall Glass Two-Component Silicone Sealant for Structural Sealing of Large-Scale Curtain Wall Glass

 

Adhesive