MF881
Two Component Silicone Structural Sealant
Insulating Glass, Structural Glazing, Facade, Curtain Wall System
APPLICATIONS
SILANDE MF881 is a two-component neutral cured silicone sealant specifically developed for the manufacturing of high performance 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
- Excellent adhesion to a wide range of substrates including coated, enamelled and reflective glasses, anodised and polyester paint coated aluminium and stainless steel.
- Excellent temperature stability: - 60°C to 180°C.
- High level of mechanical properties.
- High elasticity and high modulus.
- Joint movement: ±25%.
- Resistant to ozone.
♦ 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 |
Audited Supplier 
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