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JS444
MERCURY-FREE PU SECONDARY SEALANT
JS444 is a high performance, two-component, mercury-free, polyurethane secondary sealant.
- Mercury-free and solvent-free
- Contributes to the preservation of our environment
- Eases the waste treatment
- Part B is non-abrasive
- Machinery-friendly rheological behaviour
- Very high performances
- Mechanical resistance leading to a minimized I Index and gas loss rate of IG unit
- Long open time combined with fast curing time
*Please contact us for estimates on delivery times for this products as lead times differ per country.
Application
- JS444 is compatible with all types of manual and robotic dispensing equipment currently available.
- In Part B, we recommend using a circuit lined with PTFE to minimize water vapor penetration.
- After Application, there should be no air entrapped between JS444 and the primary sealant.
- Make sure there are no air bubbles in the corners.
- JS444, after mixing, must be homogeneous.
- Glass must be perfectly clean, with no traces of detergent or any other pollution.
- Spacers must be clean, dry and free from any other matter.
For full application details, please refer to our Technical Data Sheet.
Technical data
| CHARACTERISTICS | VALUES (mixed product) |
|---|---|
| Type | Two-component Polyurethane |
| Color | Dark anthracite |
| Mixing Ratio (by volume) | 100:10 +/- 10% |
| Working Time* | > 20 minutes |
| Open Time* | 15 minutes |
| Shore A Hardness | > 40 |
| Tensile Strength | > 0.8 MPa |
* Typical values
Description
JS444 has been designed to improve application properties in terms of decreased sensitivity and fast manufacturing.
Usage Guidelines
Application
- JS444 is compatible with all types of manual and robotic dispensing equipment currently available.
- In Part B, we recommend using a circuit lined with PTFE to minimize water vapor penetration.
- After Application, there should be no air entrapped between JS444 and the primary sealant.
- Make sure there are no air bubbles in the corners.
- JS444, after mixing, must be homogeneous.
- Glass must be perfectly clean, with no traces of detergent or any other pollution.
- Spacers must be clean, dry and free from any other matter.
For full application details, please refer to our Technical Data Sheet.
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