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ZQ655 silicone structural sealant
Product performance
ZQ655 silicone structural sealant is a medium-high modulus, neutral room temperature curing silicone elastic sealant specially designed for structural assembly. It reacts with moisture in the air to form elastic rubber, which has excellent weather resistance and resistance to sunlight, rain, ice and snow, and ozone. It will not cause adverse effects even in extreme temperature environments (-40~150°C).
Performance characteristics
1. For most building materials such as glass, coated glass, anodized aluminum, granite and painted metal materials, it has superior adhesion without using primers.
2. Neutral curing, non-corrosive.
3. After curing, it will form a strong and elastic silicone rubber, which will not change significantly due to aging and exposure to the atmosphere. The sealant still maintains waterproof and weather resistance characteristics.
4. Single component, easy to construct.
The main purpose
1. Structural glass curtain wall.
2. Manufacturing multi-layer insulating glass.
3. It is used for edge compound sealant.
Technical Parameters
| Serial number | Project | Technical index | ||
| solid Transform before |
1 |
Exterior | Black, fine, uniform paste | |
|
2 |
Sag |
Vertical placement，mm |
≤3 |
|
| Horizontally | Not deformed | |||
|
3 |
Squeezing，ml/min |
≥80 |
||
|
4 |
Surface drying time, h (temperature 25℃, relative humidity 50%) |
≤3 |
||
|
5 |
Curing time（H） |
14-21 |
||
| solid Transform Rear |
6 |
Shore hardness（A） |
35～45 |
|
|
7 |
100% tensile strength（MPa） |
≥1.0 |
||
|
8 |
Ultimate tensile strength（MPa） |
≥2.0 |
||
|
9 |
Ultimate elongation（%） |
100-300 |
||
|
10 |
Fixed-stretch cohesiveness | No damage | ||
| The product is cured for 21 days under the conditions of humidity 50±5% and temperature 23±2℃ | ||||
Note: The following data is for reference only and is not recommended to be used to formulate specifications. The performance of each type of silica gel is subject to the actual test report.
Construction summary：
1. The surface of the substrate bonded by the sealant must be clean, dry and free of dust, oil, and moisture.
2. Clean the surface of the substrate with a clean, non-lint-free white cotton cloth and stain-removing toluene or acetone solvent and wipe it dry, and inject glue within one hour.
3. Make sure that there are no gaps in the joints where the glue is glued, and the glue should be modified before the glue is solidified and it is not suitable to safely isolate the air.
4. The on-site substrate adhesion and compatibility test and user satisfaction test must be done before use.
5. Restrict use in places that are wet all year round or soaked in water for a long time.
Use restrictions
1. All materials that can ooze grease, plasticizers or solvents, such as oil-impregnated wood, oil-bottom steel plate seams, and some unvulcanized or partially vulcanized rubber lining materials and tapes.
2. In a dense and unventilated place (silicone glue needs to be cured by moisture in the atmosphere).
3. Frost and moist surface.
4. The environment of continuous water immersion.
5. Under the ground, damp places all year round.
6. Places subject to abrasion or physical damage. To
7. Restrict use in places that are wet all year round or soaked in water for a long time.
8. Restrict use in places that are wet all year round or soaked in water for a long time.
Shelf life：
This product is stored in a cool and dry place at 28°C, with a shelf life of 1 year.
Executive standard：
Q/320481 MTH002-2012.
Transport
This product is non-dangerous and should be transported in accordance with general conditions.
Engineering technical support
Please refer to the construction process manual for application methods and construction design. The company laboratory can do corresponding tests according to the bonding materials provided by the customer. It is recommended that users conduct self-effect adhesion test before use.
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