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Chengdu Guibao Science & Technology Co., Ltd.,
Chengdu Guibao Science & Technology Co., Ltd.,
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Class 25 Construction Silicone Sealant Good Weatherability Resistance

Class 25 Construction Silicone Sealant Good Weatherability Resistance

Brand Name : GUIBAO
Model Number : 996
Certification : ISO, SIRIM
Place of Origin : CHINA
MOQ : 2000 pcs
Price : Negotiable
Payment Terms : T/T
Supply Ability : 20000 pcs/4 working days
Delivery Time : 4 working days
Packaging Details : Cartridges (net 300ml),24 pieces to a carton, and sausages (net 500ml),20 pieces to a carton.
Usage : Construction
Type : One part, neutral cure
Color : White,black,grey
Shelf life : 12 Months
Application : weather and waterproofing seal of high-end window & door, and simple curtain wall
Appearance : Smooth paste without bubble or particles,uniform paste
Quality : high
Feature : excellent sealing
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Silicone Weatherproofing Sealant Class 25 Construction Silicone Sealant


General purpose, neutral cure silicone sealant for general sealing, general glazing, waterproofing applications


FEATURES


One part, neutral cure.

Easy of application.

Non-corrosive.

Good weatherability and resistance to UV radiation ,heat and humidity, and ozone.

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

Good unprimed adhesion to wide range of substrates.

Good compatibility with other neutral silicone sealants.


COLOURS


GB 996 is available in black, gray, white and other customized colours.


BASIC USES


GB 996 Neutral Silicone Sealant is formulated for weather and waterproofing seal of high-end window & door, and simple curtain wall.


TYPICAL PROPERTIES


These values are not intended for use in preparing specifications.

Test MethodPropertyUnitStandardResult
GB/T 13477 (ISO 7390)Slumpmm

≤3

≤3

0

0

GB/T 13477 (ISO 8394)Extrusion rateml/min.≥80418
GB/T 13477 (ASTM D2377)Tack free timeh≤30.7
GB/T 13477 (ISO 7389)Extension recovery%≥8090
GB 16776 (ISO 10563)Weight loss%≤107
GB/T 13477 (ISO 8339)Tensile ModulusMPa>0.4
GB/T 13477 (ISO 11600)Movement capability%±25±25
JC/T 485Adhesion after UV exposure

No failure

No failure
GB/T 13477Adhesion at fixed stretch

No failure

No failure
GB/T 13477Adhesion after heat contract and cold extension

No failure

No failure
GB/T 13477Adhesion after water immersion

No failure

No failure

*GB: Chinese National Standard

JC/T: Chinese Recommended Standard for Construction Materials

ASTM: American Society for Testing and Materials

ISO: International Standardization Organization


PACKAGING


GB 996 is available in disposable cartridges (net 300ml),24 pieces to a carton, and sausages (net 500ml),20 pieces to a carton.


SPECIFICATIONS


GB 996 is designed to meet or even exceed the requirement of:

Chinese national standard.

GB/14683-2003 25HM.

Complies with ASTM C 920.


STORAGE AND SHELF LIFE


GB 996 should be stored in original unopened containers. It has a shelf life of 12 months from the date of manufacture.


LIMITATIONS

GB 996 should not be applied:

For structural glazing.

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 surface temperature below 4℃ or over 50℃.


HOW TO USE


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

Mask areas adjacent to joints to ensure neat sealant lines. Apply GB 996 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.


TECHNICAL SERVICES

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


SAFETY INFORMATION


GB 996 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.


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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