MF840
Two Component Polysulfide Sealant for Insulating GlassSecondary Sealant for the Manufacturing of Insulating Glass
SILANDE MF884 insulating glass units used in residential and commercial use of curtain wall systems and used in structural glazing applications such as factory glazing of curtain wall units and modules for unitized and panelized systems.
FEATURES
-
APPLICATION FIELD
- Secondary sealant for the manufacturing of insulating glass.
- Two component, room temperature cured polysulfide sealant.
- Excellent adhesion to most building materials such as glass, aluminum alloy, and galvanized-steel, stainless steel etc.
- Solvent free, primers are not required.
- High strength and elasticity.
♦ APPLICABLE STANDARDS
- EU Specification: EN1279-part2, 3,4
- China Specification: GB/T 29755
- IGCC-IGMA Approved.
-
- ♦ TYPICAL PROPERTIES
| TEST ITEMS |
MEASURED VALUE |
| Base |
Appearance |
White / Grey Ropy Paste |
| (Com A) |
Viscosity |
170,000 mPa.S |
| Catalyst |
Appearance |
Black / White Ropy Paste |
| (Com B) |
Viscosity |
80,000 mPa.S |
| As mixed |
| |
Appearance |
Black / White / Grey |
| Mixture |
Viscosity |
340,000 mPa.S |
| By weight |
Application Time (23°C, 50%) |
30-50 mins |
| (A:B = 14:1) |
Tack-free Time (23°C, 50%) |
30-60 mins |
| |
Placed Vertical (50°C) |
0 |
| Sag |
Placed Horizontal |
No deformation |
| Hardness |
Shore A - 24h |
35 |
| Shore A-14 days |
44 |
| As cured - after 14 days at T 23®C and 50% R.H. |
| |
23°C |
0.97 MPa |
| |
90°C |
0.85 MPa |
| Tensile |
-30°C |
1.84 MPa |
| Adhesion |
After Water Immersion |
1.01 MPa |
| Strength |
After Water-UV Immersion |
0.97 MPa |
| |
Adhesive Failure Area |
0% |
| |
23°C Elongation Under Max. Tensile Strength |
140% |
| Temperature Resistance |
- 60~180°C |
| Resistance to UV-Ozone |
Continuous irradiation under water-UV 2500 hrs, No change. |
| Moisture Vapour Transmission Rate (MVTR) |
17.7 [gr/m2.24hrs.2mm] - EN1279/4 |
| Gas Permeation Rate (Ar) |
755 x 10-3 [gr/m2.hrs] - EN 1279/4 |
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