Two Part 662 Automotive Silicone Sealant For Cars
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.
Color
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.
Adhesion
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.
Limitations
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.
Get in Touch
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