MF889A
Silicone Stone Weatherproofing Sealant
MF889A Silicone stone weathering sealant
SILANDE MF889A Silicone Stone Weatherproofing Sealant, a one-part, RTV, neutral-cure, architectural grade sealant, is designed specifically for the assembly of stone and the weatherproofing of stone, glass and most other construction substrates without primer. It easily extrudes in any weather and cure at ambient temperature by reaction with moisture in the air to form a durable, flexible silicone rubber seal.
APPLICATIONS
SILANDE MF889A Silicone Stone Weatherproofing Sealant, a one-part, RTV,neutral-cure, architectural grade sealant, is designed specifically for the assembly of stone and the weatherproofing of stonc, glass and most other construction substrates without primer. It casily extrudes in any weather and cure at ambient temperature by reaction with moisture in the air to form a durable, flexible silicone rubber seal.
FEATUR ES
No corrosion and pollution to porous building materials such as granite and marble.
Suitable for use on extension/compression movement capability of up to25% of the . original joint size.
Excellent adhesion to most building material without primer, such as stone, glass, metal, tiles and anodized aluminium.
Excellent weather sealing and temperature stability:- 60°C to 180°C.
High elasticity and high modulus.
APPLICA BLE STANDAR DS
GB/T 23261 1 S25HM
ASTMC920TypeS,GradeNS,Class25
SHELF LIFE AND STORANGE
12 months from the date of manufacture,store in a low moisture, dark place below 30 °C in the original unopened packing.
COLORS
Black/Grey/White
♦ TECHNICAL DATA-TYPICAL PROPERTIES
| TEST ITEMS |
TECHNICAL DATA |
TEST RESULT |
STANDARD |
| Test Conditions: T (23 ±2)°C, (50 ± 5)% R.H. |
| Sag, mm |
W3 |
0 |
GB/T 13477.6 |
| Extrusion Property, s |
W10 |
1.9 |
GBH 16776 |
| Application Time, min |
- |
20 |
- |
| Tack-free Time, h |
W3 |
2.5 |
GBH 13477.5 |
| Curing Time, d |
- |
7-14 |
- |
| Range of Application Temperature, °C |
- |
5-40 |
- |
| Test Conditions: 28d placed at T (23 ±2)°C, (50 ± 5)% R.H. |
| Hardness, Shore A |
20-60 |
51 |
GBfT 531.1 |
| Range of Temperature Resistance, °C |
- |
-60-180 |
- |
| Movement Capability, % |
25 |
25 |
|
o+ . o . Stain Depth
Stain Property, |
W2 |
0 |
GB/T 23261 |
| mm Stain Width |
W2 |
0 |
|
| Modulus at 100% Elongation, Mpa |
|
0.7 |
|
| Elongation at Break, % |
- |
190 |
GBH 13477.8 |
| Tensile Strength, Mpa |
|
1.00 |
|
Glue injection method
Install appropriate gasket materials, adhesive spacers or tape as required.
Continuously squeeze the MF889A-25 silicone stone weathering sealant into and fill the joints. When the sealant surface is not yet skinned, press the sealant into the gasket material and the joint surface with appropriate strength. It is recommended to use convex tools to trim the rubber surface into a concave shape. Do not use soap or water as auxiliary materials for trimming.
After finishing the dressing, remove the masking tape immediately.
Be careful not to splash the uncured silicone sealant on non-abrasive surfaces, such as polished granite or other natural stones, because these wet silicone sealants cannot be completely removed with organic or chlorinated solvents. Therefore, these surfaces must be masked, or extra care must be taken when applying glue to prevent the sealant from contacting these surfaces, once the uncured sealant comes in contact with
These surfaces, it will leave a layer of film on the surface, which may affect the appearance of the substrate surface.
-
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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