INTRODUCTION
MF-889A is a one component, neutral cured,
high elasticity and medium modulus silicone
sealant special for the sealing of stone and
the weatherproofing of stone curtain wall. It
is also widely used in the sealing of building
for its excellent resistance to weather and
water. It has no corrosion to porous building
materials such as granite and marble.
CHARACTERISTIC
- Directly extruded in the temperature range
of 10 - 50℃.
- Single component. Neutral cured, no corrosion
to the surface.
- Excellent adhesion to most building materials
without primer.
- Excellent resistance to weather aging, low
and high temperatures. Good adhesion performance
in the range -50℃～+150℃.
- Excellent movement capability: ±25%.
- No corrosion to porous building materials
such as marble and granite.
- Environment friendly sealant.
APPLICATION
MF-889A is mainly applied in the assembly and
weatherproofing sealing. It is suitable for
filling the seam and joints with excellent good
adhesion.
NOTES
1. In case of contact with eyes, rinse immediately
with plenty of water.
2. Avoid long-term contacting with skins.
3. Avoid contaminating food, medicine or cosmetics,
etc.
APPLICATION METHODS
General
1. Surfaces where silicon shall be applied
must be cleaned, dried and free of grease.
2. Masking tape should be used to avoid contamination
and they shall be removed after sealing.
3. It could be used directly under the temperature
between 10 - 50℃.
Restriction
It is inapplicable under following circumstances.
- Any building materials with exudation of
grease, plasticizer or solvent, etc
- Vulcanized or semi-vulcanized rubber.
- Structural assembly is required.
- The joint which undertake structural intensity,
suffering excessive rub or physical destroy.
- Those regions where are closed and are cut
off the air.
- Frosted or humid surface.
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