Chengdu Guibao Science & Technology Co., Ltd.,

Two Part Automotive Silicone Sealant / Black Silicone Sealant For Cars

Product Details:
Place of Origin: CHINA
Brand Name: GUIBAO
Certification: IATF 16949:2016
Model Number: 662
Payment & Shipping Terms:
Minimum Order Quantity: 10 sets
Price: Negotiable
Packaging Details: Part A: 240kg/drum Part B: 18kg/pail
Delivery Time: 4 work days
Payment Terms: T/T
Supply Ability: 100 sets/ 4 work days
  • Detail Information
  • Product Description

Detail Information

Colar: Part A:White Part B:Black Package: Part A:240kg/Drum Part B:18kg/Pail
Shelf Life: 9 Months Material: Silicone Sealant
Keywords: Automotive Lamp Sealant,car Light Sealant,auto Light Sealant,suitable For Assembly Line Manufacturing Feature: Two Part,fast Curing
High Light:

car light sealant


car black silicone sealant

Product Description

Two Part Silicone Sealant for Automotive Lamps Automotive Silicone Sealant


Typical Properties(It should not be used as product standard.)


Test Method Property Unit Result
As supplied
/ Appearance   Non-flowing paste

GB/T 13477 (ISO 7390)


Slump mm 0
GB/T 13477 (ISO 7390) Working Time (23℃,50% RH) min. 6

Tack free time

GB/T 13477 (ISO 7390) (23℃, 50% RH) min. 12

Cured after 7 Days, at 23 and 45%~55% RH
/ Appearance   Elastic Rubber
GB/T 531 (ISO 7619) Hardness Shore A 30
GB/T 528 (ISO 37) Tensile Strength MPa 2.5
/ Elongation at break % 431
/ Adhesion to PC, glass, PP(plasma treated )   Cohesive failure
GB/T 724 / Shear strength(PC overlap PP) MPa 1.5

Product Feature


Two component, neutral and fast cure silicone sealant.

Flexible elastomer after curing.

Stable performance over temperature from -55℃ to +180℃

Excellent adhesion to many substrates, such as metal, plastic, ceramic, glass, etc.

Convenient operation, suitable for assembly line manufacturing.

Recommended mixing ratio is 12:1(by weight)

Chengdu Guibao Science & Technology Co.' Ltd patented product.


Basic Uses


Waterproofing sealant for automotive lamps.

Waterproofing sealant for other high-end lamps.




Guibao 662 component A is white, component B is black, and it is black or grey after mixing.


Packaging Information


Guibao 662 component A is supplied in metal drum(net 240kg), or in plastic pail (net 25kg).

Guibao 662 component B is packed in plastic pail(net 18kg), or in cartridge(net 300ml).


Storage and Shelf Life


This product should be stored in cool and dry places. Its shelf life is 9 months from the date of manufacture.


 How to Use


Surface Treatment

Keep the surface of substrates dry and clean, without any rust, dust or greasy dirt.

Cleaning solvents include alcohol,acetone ,etc.



Excellent adhesion to most substrates except PTFE, PE,PMMA etc.

Extrude sealant with a sealant gun on cleaned surface appropriately and evenly.

If the temperature is low, curing time will be extended.


Plasma Treatment

For low surface energy material(PP), plasma treatment is required.




When the surface temperature of substrates is below 4℃ or above 50℃, it is not suitable for sealant application .

Not suitable for confined spaces or on surfaces that are continuously immersed in water, should not be used as structural glazing sealant.

Not suitable for lamps sprayed with anti-fog coating.

Guibao recommends that adhesion test be carried out prior to sealant application.

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