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Auto Elastic Bonding and Joint Sealing Solvent Free Primerless Adhesive Sealant
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  • Auto Elastic Bonding and Joint Sealing Solvent Free Primerless Adhesive Sealant
  • Auto Elastic Bonding and Joint Sealing Solvent Free Primerless Adhesive Sealant
  • Auto Elastic Bonding and Joint Sealing Solvent Free Primerless Adhesive Sealant
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sku: Surtek 3356
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Surtek3356 1-C Polyurethane Solvent Free Fast Cure Adhesive Sealant


Technical Data Sheet

Surtek 3356
1 Appearance Uniform Paste
2 Color Black
3 Density 1.25 ± 0.05 kg/l
4 Tack-free time* 15~35 min
5 Rate of cure* ≥3 mm/24 hrs
6 Work temperature 5-35°C
7 Shore A hardness ~ 60
8 Tensile strength ≥6 N/mm2
9 Elongation at break ~ 300%
10 Shear strength ≥4 N/ mm2
11 Tear strength ≥10 N/ mm
12 Service temperature (continuous)
Short – term (up to 48 hrs)
-40°C to +90°C
130°C
NOTE: at 23°C and 50% relative humidity



Description
Surtek 3356 is a one component, moisture-curable solvent free polyurethane adhesive sealant. It is non-sag, fast cure, of high bonding strength with primer. And it has good vibration and weather resistance. The product is manufactured in accordance with ISO9001/ISO14001/TS16949.

Characteristics
One component, easy to apply
Non-sagging
Fast cure
Solvent free
High strength use with primer
Good weather resistance, vibration and fatigue resistance

Uses
Surtek 3356 is used for windshield bonding, bus body bonding, and other high-strength request bonding and gap filling. It should be used together with Comens Primer or Activator.

Application Note
1. Clean surface to make it clean, dry, free of oil or grease.
2. Apply the Comensflex Activator or Comensflex Primer on the surface.
3. The sealant cures with the 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.
4. The suggested work temperature is 5-35°C, the best work temperature is 15-25°C.

Property of the Sealant Layer
1. The product cures with the moisture in the air, which forms a high strength elastic structural sealant layer.
2. 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.
3. The sealant layer can be trimmed before curing. But after curing, it can only be removed by cutters.

Packaging
310ml/cartridge, 600ml/sausage

Storage
When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9 months (cartridge), 6 months (sausage).

The shelf life of polyurethane sealant is related to the temperature and humidity of the environment. 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. In the long-time high temperature and high humidity storage environment, the product is easy to get viscous, extrusion will be deteriorated and shelf life will be shortened.


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