MF883
Silicone Sealant for Insulating Glass
Insulating Glass, Structural Glazing, Facade, Curtain Wall System
DESCRIPTION
MF883 is one component neutral cured RTV silicone structural sealant for secondary seal of insulating glass units.
♦ APPLICATIONS
MF883 is mainly applied to secondary seal of traditional insulating glass units, with butyl as its primary seal, also recommended to glazing micro insulating glass with free edge incorporated by specialty glass types like ultra-thin glass (solar glass or screen glass).
- FEATURES
- Form durable and elastic sealing layer on glass and spacer surface.
- Excellent adhesion to a wide range of substrates without primer.
- Neutral cured, no corrosion to substrates surface.
- Excellent temperature stability: -60°C to 180°C.
- Non-slump, solvent free, and no pollution to environment.♦ APPLICATION METHODS
Surface-preparation:
The sealing joint and assembly parts must be clean, dry and free from all contamination and impurities, such as grease, dust, water logging, frost, dirties, remaining glues, assembly accessories and protective coatings.
Primer:
Adhesion test must be proceeded to confirm if primer is necessary or not. If necessary, the primer shall be applied to be a thin layer with a white cloth on the surface before applied sealant. Otherwise, apply sealant directly to clean surface of substrate.
Injection of Sealant:
Continuously extrude MF883 with a positive pressure sealant gun and fully fill it in the joints.
Tooling:
Before a skin forms, tool the sealant with light pressure to spread the sealant and make sure complete surface contact with glass and spacer.
. APPLICABLE STANDARDS
- GB 16776
- GB/T 29755
- . LIMITATIONS
The product is not applicable in the following conditions:
-Single seal or primary seal of insulating glass units.
-Immersion in the water.
-Any building materials exuding grease, plasticizer or solvents, vulcanized or semi-vulcanized rubber.
-Frosted or humid surface.
-The region where atmosphere vapor is closed and cut off (as sealant is moisture curing).
-Surfaces where paints are used (generally paints cannot be adhered on surface of silicone).
-contact with food or other affiliated category
The well-packaged product can be stored for 12 months in a cool, ventilated, and dry place, and used before the "expiry date" of the outer packaging of the product
| TEST ITEMS |
TEST RESULTS |
TESTS1ANDARD |
| Base |
Polyisobutylene (PIB) |
- |
| Color |
Black |
- |
| Appearance |
Solid mass |
GB/T 1033.1 |
| Density |
1.1/1.25 fe/cm3] |
JC/T914 |
| Shear Strength |
0.21 MPa |
|
| Penetration (1 /1 Omm) |
25°C 40 |
|
| 130°C 290 |
JC/T 914 |
| Volatile Content |
Max. 0.02 % |
|
| Fogging |
Without visual fogging |
- |
| Moisture Vapour Transmission Rate (MVTR) |
0.26 [gr/m2.24hrs. 2mm] |
EN1279-4 |
| Gas Permeation Rate (Ar) |
1.30x10-3[gi7m2. hrs] |
EN1279-4 |
.APPLICATION FIELD
- One component, solvent free, non-fogging, permanently plastic butyl sealant, formulated for primary sealing of insulating glass units.
- It can keep its plastic and sealing properties in a wide temperature range.
- Excellent adhesion properties on glass, aluminum alloy, galvanized steel and stainless steel.
- Minimum moisture vapour and gas permeation.
- Excellent temperature stability: - 30°C to 80°C.
♦ TECHNICAL DATA - TYPICAL PROPERTIES
MF322 two-component polyurethane corner glue
Mainly used for bonding and sealing between aluminum alloy corners and profile cavities in aluminum alloy door and window structures; suitable for bonding wooden doors, windows and doors; for processed different materials, such as wood, building materials, ceramics and metals It has good adhesion.
How to use instructions
Remove dirt, dust, oil, frost, etc. on the surface of the substrate; place the plastic nozzle on the open bottle mouth and tighten it, and use a dedicated 1:1 double bottle glue gun to inject glue. Uncured glue can be cleaned with special cleaning agents (or other solvents such as alcohol).
Packaging
Packaging
1:1 double plastic bottle packaging: 600 ml per group; 9 groups per carton
Transport transmission
This product is non-hazardous and can be transported by train, car, ship and plane
Store
Can be stored for 6 months in a cool, ventilated and dry place.
Precautions and precautions
The initial 20g of mixed glue may be insufficiently mixed and is not recommended.
The glue mixed at room temperature should be used during the application period.
Avoid contact with skin and eyes. If inadvertently, rinse immediately with plenty of water and consult a doctor if necessary;
avoid contact with children; do not contaminate food, medicine or cosmetics.
The heavy workpiece to be bonded should be avoided to move before it is completely cured, and measures should be taken to fix it when it is necessary to move.
Recommended use conditions: temperature 15 ~ 35C, relative humidity 40% ~ 80%; if the temperature and humidity are lower than the recommended lower limit, the horn glue will cure more slowly, and if it is higher than the recommended upper limit, the construction time will be shortened.
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