Chengdu Guibao Science & Technology Co., Ltd.,

Neutral General Purpose 500ml Construction Silicone Sealant

Product Details:
Place of Origin: CHINA
Brand Name: GUIBAO
Certification: ISO, SIRIM
Model Number: 557
Payment & Shipping Terms:
Minimum Order Quantity: 2000 pcs
Price: Negotiable
Packaging Details: Cartridges (net 300ml),24 pieces to a carton and sausages ( net 500ml),20 pieces to a carton.
Delivery Time: 4 working days
Payment Terms: T/T
Supply Ability: 20000 pcs/4 working days
  • Detail Information
  • Product Description

Detail Information

Features: One Part Neutral Cure Color: Black,white,grey
Shelf Life: 12 Months Volume: 300ml, 500ml
Packing: 300ml, 500ml Package: In Cartons
Quality: High Application: Weatherseal And Perimeter Seal Application Of Window And Doors
High Light:

500ml Construction Silicone Sealant


Neutral Construction Silicone Sealant


500ml general purpose silicone sealant

Product Description

Neutral General Purpose Construction Silicone Sealant for Window and Door seal


One part neutral cure silicone sealant suited for weatherseal and perimeter seal purposes.




One part, neutral cure, odorless.

Excellent watertight performance.

Easy application.


Stable long service life.

Excellent weatherability.

Good unprimed adhesion to wide range of substrates.

Good compatibility with other neutral silicone sealants.




These values are not intended for use in preparing specifications

Test Method

Property Unit Standard Result
GB/T 13477 (ISO 7390) Slump(vertical) mm





GB/T 13477 (ISO 8394) Extrusion rate ml/min. ≥80



GB/T 13477 (ASTM D 2377) Tack free time h ≤3 0.8
GB/T 13477 (ISO 7389) Extension recovery % ≥80 86
GB/T 13477 (ISO 10563) Weight loss % ≤10 8
GB/T 13477 (ISO 8339) Tensile modulus





GB/T 13477 (ISO 11600) Movement capability % 20 20
JC/T 485 Adhesion after UV exposure  



No failure
GB/T 13477 Adhesion at fixed stretch  



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



No failure
GB/T 13477 Adhesion after water immersion  



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.




GB 557 is available in black, gray, white and other customized colours.




GB 557 Neutral Silicone Sealant for Window and Door is designed for weatherseal and perimeter seal application of window and doors.



GB 557 is available in disposable cartridges (net 300ml),24 pieces to a carton and sausages ( net 500ml),20 pieces to a carton.




As exposed to air, GB 557 begins to cure inward from surface. Its tack free time is about 50 minutes; the full and optimal adhesion depends on the sealant depth.




GB 557 is designed to meet or even exceed the requirements of:

Chinese national specification.

GB/T 14683-2003 20HM.




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




GB 557 should not be applied:

For structural glazing.

For weather seal for curtain walls.

To underground joints.

To joints with high movement.

To the materials that bleed oils , plasticizers or solvents, such as impregnated wood ,or unvulcanized resin.

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℃.




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 557 in a continuous operation using dispensing guns. Before a skin forms, tool the sealant with light pressure to spread the sealant against the joint surfaces. Remove masking tape as soon as the bead is tooled.




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




GB 557 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.




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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