MF889A Silicone stone weathering sealant
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
Application method
Surface cleaning
Remove all impurities and pollutants such as grease, dust, water stains, frost, surface stains, defective sealants, assembly accessories, and protective coatings in the seams and assembly depression.
Non-porous materials such as metals and glass must be used to clean the surface according to the "double cloth wiping". In all cases, the solvent must be wiped with a clean, no descending white cloth. Methods of cleaner or soapy water.
The porous material must be ground, saw, rinsing (water temple), machine B grind or synthesis the above method cleans the surface, and be sure to keep him to completely clean and dry. The material such as dust and loose particles should be blown off with oil-containing compressed air or by vacuum cleaner.
Use primer
When the MF889A silicone stone weather resistant seal is usually used, i is used. Over, you must test by a bonding test to determine if a primer is required. If the test is required to determine the primer, the primer is poured into a piece of offset to a thin layer to the surface of the sewing to the thin layer, and it is safe.
Shield
Open-well polyurethane foam rod, closed porosity polyethylene and unsettled polyoleacid material are recommended liner materials. For shallow seams, it is recommended to use a polyethylene tape to prevent three-sided bonding.
liner material
The parts near the seam are shaded to ensure that the work line is perfect. Never let the shielding tape contact the cleaning surface that will be rubbed. After the glue is completed, before the sealing gel has not been fell, we must be trimmed immediately. After the repair work is completed, the shielding tape should be removed immediately.
Glue method
Install the appropriate pad material, bond the spacer or tape as required.
The MF889A silicone stone weather resistant sealing gel is continuously squeezed and filled with seams, and the sealing adhesive is compacted in the gasket material and the surface of the seam in the surface of the sealing glue surface. It is recommended to use a convex tool to trim the surface to be concave, and soap or water can be used as a helper material when trimming. After the trimming, the shield tape was torn off immediately.
Uncorrified silicone sealants should be careful not to splash into the unbelrable surface, such as polished granite or other natural stone, because these unsucked silicone sealants cannot be completely removed with organic or chlorinated solvents, so These surfaces must be obscured, or be careful when geling to prevent sealing gums from being in contact with these surfaces, once uncured sealants come into contact with these surfaces, it will leave a film on the surface, which may affect Beautiful view of the surface of the substrate.
Operation precautions
If you accidentally enter your eyes, you should immediately use a lot of water. It is not allowed to contact the skin for a long time, avoiding childhood contactless food, drug or cosmetics, please do adhesive tests and refer to the company's technical information and safety data sheets, understand Safe use, hazards, etc. information for products. If the security matters not involved in this product, please follow the requirements of JGJ102.
Storage and validity
Packing the goods, in a cool, ventilated, dry, can be stored in 12 months, using the "validity" of the product packaging
Package
Plastic tube: 300ml per piece, 25 soft packages per box: 592ml each, 20
Limit
This product is not allowed to be used as a structural glue, nor is it tested or stated as suitable for medical or medicinal.
This product is not suitable for:
Groundwater seam or excessive friction
Long-term immersion in the water
It is possible to seep over the oil, plasticizer, solvent surface, or part of the vulcanized rubber gasket or tape
Frost or moist surface
Completely in contact with the air in the air (sealed adhesive required water gas curing) Sealed glue surface is painted in the paint (- Paint cannot be attached to the silica gel surface)
Direct contact with food or other food grade surface applications
♦ 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
.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.
){kind=link}