High Strength Sika Polyurethane Sealant for Structural Bonding and Windscreen Glazing

• Customization: Available
• Bonding Function: Structural Adhesive
• Application: Automobile
• Model NO.: Surtek 3668
• Material: Polyurethane
• Classification: Room Curing
• Promoter Composition: Complexing Agent
• Composition: Organic Material
• Color: Black
• Density: 1.20±0.05 Kg/L
• Cure Mechanism: Moisture-Curing
• Non-Sag Properties: Good
• Shore a Hardness: ~ 60
• Shear Strength: ≥ 5 N/mm^2
• Tensile Strength: ≥ 8 N/mm^2
• Elongation at Break: ≥ 400%
• Tear Strength: ≥ 10 N/mm
• Tack-Free Time (23 ºC , 50% Rh): 20~40 Min
• Rate of Cure (23 ºC, 50% Rh): ≥ 3.5 mm/24hrs
• Transport Package: 310ml Cartridge, 400ml, 600ml Sausage
• Specification: SGS
• Trademark: Surtek
• Origin: China
• HS Code: 3506100090
• Production Capacity: 72000000PCS/Year

Product Description

DESCRIPTION
Surtek 3668 is a one component, solvent free, high strength polyurethane adhesive sealant. It is non-sag, curing fast, of good initial strength. It does not contain solvent or PVC. And it has good vibration and weather resistance. The product is manufactured in accordance with ISO9001/ISO14001/TS16949.

ADVANTAGES
One component, easy to apply
No sagginess, easy to apply in vertical surface
Fast cure
Solvent free
Aging resistant

USES
Surtek 3668 is used for windshield direct glazing. It is widely used for structural bonding and installation for windscreen of car, bus, train, boat, ect.





                




APPLICATION
1. Use Comensflex Activator to make the substrate surface clean, dry, free of dust or grease.
2. Shake Comensflex Primer bottle to make the material even before using it. Use brush to apply the primer onto the cleaned surface for a thin layer.
3. Apply the sealant after the primer dried. Install the glass before the sealant tack free. The best working temperature is 20-30°C, humidity 50-70%
4. The sealant cures with moisture in the air. The lower the temperature and humidity is, the slower the curing is; and the higher the temperature and humidity is, the faster the curing is. Too high temperature and humidity may cause bubble in the cured sealant.
5. Avoid the adhesive sealant from alcohol, acid, ammonia chemicals. These chemicals will cause the adhesive sealant uncured.

TECHNIACAL DATA SHEET OF SURTEK 3668:

Appearance	Uniform Paste
Color	Black
Density	1.20 ± 0.05 kg/l
Tack-free time*	20~40 min
Rate of cure*	~3.5 mm per 24 hrs
Shore A hardness	60±5
Tensile strength	≥8 /mm^2
Elongation at break	≥400%
Tear strength	≥10 N/mm
Shear strength (without primer)	≥5 N/ mm^2
Service temperature (continuous) Short - term (up to 48 hrs)	-40°C to +90°C 130°C

PACKAGE
Cartridge: 310ml/cartridge, 20 cartridges/carton
Sausage: 400ml/sausages, 600ml/sausage, 20 sausages/carton
Drum: 200L/drum

STORAGE AND SHELF LIFE
When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9 months.
The recommended storage temperature is 5-25°C, humidity is <50% RH. It is strictly prohibited that the transportation or storage temperature is over 30°C or the humidity is over 80% RH. And high-temperature container transportation is prohibited as well.