Sealant for building doors and windows
Slander
Features and Benefits
◇Low modulus, with high displacement capacity of 100/50, used in conjunction with
structural sealant that meets E-AG 002, and can provide a 25-year quality guarantee;
◇Neutral curing, no corrosion to the adhered surface, suitable for coated glass, float glass, wooden
materials, aluminum profiles, galvanized steel plates, masonry and other materials;

◇Excellent high and low temperature resistance and weather aging resistance. Within its displacement capacity, it can
withstand repeated high and low temperature alternating deformations, with minimal impact on the performance of
the sealant itself;
◇Ideal sealing material for stretches, connections, perimeter seals and other moving joints;

◎Achieve good results on most building materials and components without the use of primer
Adhesion;
◎Easy to use, can be extruded and applied at any time using a general glue gun;
◎Excellent anti-sag performance;
●No pollution to the environment.
composition
◎Single-component, neutral, room temperature water vapor curing silicone sealant.
application
◎MF889-25 silicone weather-resistant sealant is suitable for weather-resistant and waterproof sealing of various types of
glass curtain walls, aluminum curtain walls and other building curtain walls in buildings.
Main Specifications
Test items
skills requirement
When not cured, test at temperature (23±2)℃ and relative humidity (50±5)%.
Droop,mm
Extrudability,ml/min
Surface drying time, h
Bonding time, d
Construction temperature range,℃

Cured and tested for 28 days under the conditions of temperature (23±2)℃ and relative humidity (50±5)%
Test results
Guideline

GB/T 13477.6

GB/T 13477.3

GB/T 13477.5

Hardness, Shore A
Displacement capacity,%
Temperature resistance range after curing,℃
Modulus at 100% elongation, VPa
Elongation at break,%
Tensile strength, MPa

GB/T 531.1

GB/T 22083

GB/T 13477.8

Definite elongation adhesion
Fixed elongation adhesion after water immersion
No damage
No damage
GB/T 134/7.10
No damage
No damage
GB/T 13477.11
Fixed elongation adhesion after water immersion and light exposure
No damage
No damage
GB/T 13477.15
Adhesion after cold drawing-hot pressing
cyclic stretch bonding
Elastic recovery rate,%
100/50 No damage
100/50 No damage
GB/T 13477.13
100/50 No damage
100/50 No damage
ASTV C719

GB/T 13477.17
Quality loss rate,%

GB/T 13477.19
Volume loss rate,%
Alkane plasticizer

Not allowed to be checked out
not detected
GB/T 31851