Non-Sagging and Fast Cure Polyurethane (Surtek 3358) for Automotive Windscreen with High Viscosity

• Customization: Available
• Bonding Function: Structural Adhesive
• Morphology: Black Paste
• Model NO.: Surtek 3358
• Material: Polyurethane
• Classification: Room Curing
• Main Agent Composition: Polyurethane Prepolymer
• Characteristic: High Viscosity, High Shear Strength, Fast Cure
• Promoter Composition: Complexing Agent
• Composition: Organic Material
• Color: Black
• Density: 1.25±0.05 Kg/L
• Cure Mechanism: Moisture-Curing
• Non-Sag Properties: Good
• Shore a Hardness: ~ 60
• Shear Strength: ≥ 4 N/mm^2
• Tensile Strength: ≥ 7 N/mm^2
• Elongation at Break: ≥ 250%
• Tear Strength: ≥ 10 N/mm
• Tack-Free Time (23 ºC , 50% Rh): 10~20 Min
• Rate of Cure (23 ºC, 50% Rh): ≥ 4 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 3358 is a one component, moisture-curable solvent free polyurethane adhesive sealant for windscreen/windshield fixing and replacement. It is non-sag, of high bonding strength. And it has good vibration and weather resistance. The product is manufactured under ISO9001/ISO14001/TS16949.

Advantages:
One component, easy to apply
No sagginess, easy to apply in vertical surface
Fast cure
Good adhesion without primer
Good weather resistance, vibration and fatigue resistance

Uses: 
Surtek 3358 is applied for bonding and sealing of windshields, side window glass for various kinds of vehicles in the automotive aftermarket.

                 







Application:
Clean surface to make it clean, dry, free of oil or grease.
Apply the Comensflex Activator and Comensflex Primer on the surface if needed.
The sealant cures with the moisture in the air. The lower the temperature is, and the lower the humidity is, the slower the curing rate is.
The suggested work temperature is 5-35° C, the best work temperature is 15-25° C.

Property of the sealant layer:
The product cures with the moisture in the air, which forms a high strength elastic structural sealant layer.
The sealant layer is resistant to water, weak acid, neutral cleaner which do not contain chlor-alkali. It can shortly resistant to fuel, oil, fat, and crude oil. But it should be avoided strong acid, lye, bleach and other organic solvent.
The sealant layer can be trimmed before curing. But after curing, it can only be removed by cutters.

Technical Data Sheet of Surtek 3358:

Appearance	Uniform Paste
Color	Black
Density	1.25 ± 0.05 kg/l
Tack-free time*	30~60 min
Rate of cure*	~3.5 mm per 24 hrs
Shore A hardness	60±5
Tensile strength	≥5 N/mm 2
Elongation at break	≥450%
Tear strength	≥10 N/mm
Shear strength (without primer)	≥2 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.

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