MF881-25 silicone structure sealing rubber
The MF881-25 is a two-component silicone structure sealing gel, mainly used in the bonding of the glass, metal and other building components, and the side seal of the glass unit plate. Neutral desorption type, room temperature curing and releases a small amount of alcohol type gas.
- satisfying the maintenance of the building structure
- which has good bonding to most substrates, including coated glass, glazed glass, anodized aluminum, stainless steel, etc.,
- non-pollution, no corrosion
- in a 60 ° C 180 ° C working environment with good stability Preparation Work Products Advantages Product Description Application Field MF881-25 Silicone Structure Sealant Applied in high-level, super high-rise building wall, large size glass plate curtain wall, complex Structural assembly of building curtain walls, supernostatic glass, and pipeline flange, bridge, ship, sewage treatment plant, subway, culvert, architecture
Product Description
Product advantages
- excellent mechanical properties
- good aging resistance
- no primer is good bonding
Application field
MF881-25 Silicone Structure Sealing Glue Applied in high-level, super high-rise building wall, large-sized glass plate curtain wall, complex structural construction curtain wall structure assembly, hollow glass production, and pipeline flange, bridge, ship, sewage treatment plant, subway Culvert holes, buildings and oil platforms.
Related standards
MF91-25 is in line with China Standard GB 16776, Ig / 475, JG / T471, US standard ASTM C920, ASTMC1184, EU standard ETAGO02, is a sealed adhesive designed for the glass unit sector required for buildings. It can meet the test requirements of different environmental conditions, with excellent mechanical properties and aging resistance, ensuring longer service life of sealed glue.
Optimistic adhesion and extremely high mechanical properties after aging treatment.
-1008H water ultraviolet radiation
-Salt spray test
- Acid fog test - cleaner test
Instructions
MF881-25 does not have a primer to have good adhesion to most coating and non-coated glass, metal spacers, and the like. In order to ensure the quality of the project, it is recommended to make compatibility and adhesive tests in advance before each project begins.
The mixing ratio
In order to achieve better physical properties, the recommended base gum and curing agent are mixed in a fully sealed stirring system, which can be used for automatic aduluring machine, can not be used with hand or portable agitator, because in the mixing process, it is easy to bring air to Influencing the physical properties of the sealed adhesive solidification.
In order to achieve the best sealing glue, the proportion of the base gum and the curing agent should be mixed according to mass ratio 12: 1, or the equivalent volume ratio of 8.7: 1. Under this mixing ratio, the construction period of the sealant should be 30 min to 90 min, the dual dry time is within 3 hours, allowing the mixing ratio to be small adjusted, but the mass ratio cannot exceed 11: 1.141. It is recommended to stir well before use. Since the curing agent is easy to react with the moisture in the air, it cannot be exposed to the air for a long time.
Ready to work
Clear the surface of the substrate, such as: fat, oil, dust, water, frost, old sealant, glass compound, protective coating, etc. Metal, glass and plastic surfaces should be cleaned by mechanical methods or solvents. Choose clean, no fluffy white cloth to wipe the surface of the substrate, then dry, clean, white cloth without fluffing.
Use the MF881-25 generally do not need to use a primer. Before using compatibility tests, determine whether the primer is used by compatibility and adhesive test results.
Protection and construction
In order to ensure the cleanliness of the United States, the surface of the adapter tape should be covered with the area of the seam. It is not allowed to contact the adhesive surface, i.e., a region of silicone sealant to adhere. The adapter tape should be removed immediately after the coating process is completed.
Equipment cleaning
After the glue is completed, the splitter pipe must be rinsed with a base gel or was cleaned with a solvent. If the cured sealant already exists inside the device, it should be cleaned immediately with a suitable solvent to ensure cleaning the pipe surface.
Repair
If the sealing is found, it should be cut or scratched with a clean knife or scratch the surface of the cured sealed rubber.
Precautions
Before construction, please read the product manual, safety data sheet, package label, and obtain information on safe use and physical health hazard.
Storage and validity
The well-wrapped products can be stored in a cool, ventilated, dry, and use it before the "validity period" of the product.
Package
Chip (A component): 200L iron drum inner diameter (567 2) MM curing agent (B component): 20L plastic bucket inner diameter (285+- 2) mm
Transportation
MF881-25 is non-dangerous, and can be transported through train, cars, ships and aircraft.
Safety instructions
This product manual does not include all materials for safe use, in order to ensure safety construction, you should carefully read (Silicone Structural Sealed Gum Construction Guide "and product manual, and contact local sales companies to obtain these materials. Especially for chrome-plated The bonding of surfaces (such as chrome plating glass) must be in contact with the technical department of the company before use, and can be used after safety testing.
Audited Supplier 
){kind=link}
){kind=link}