| Customization: | Available |
|---|---|
| Capacity: | 300ml |
| Color: | Black/White /Grey/Transparent, Clear |
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QMS-988 Single-Component
**High-Performance Sealing Solution for Glass Engineering**
This acid-curing silicone structural glass sealant is a single-component adhesive specifically designed for large glass panels, premium glass installations, skylights, aluminum alloy glass doors and windows, and large showcase assembly projects.
With exceptional adhesion and weather resistance, this sealant delivers optimal sealing performance for a variety of architectural and decorative applications, ensuring long-lasting waterproofing, moisture resistance, and airtight sealing.
**Suitable Materials**
- Glass, ceramic, fiberglass
- Non-oily wood, aluminum profiles, painted surfaces
- Particularly suitable for installation and sealing of aluminum alloy glass doors and windows
**Note:**
For powder-coated aluminum surfaces, ensure thorough cleaning of surface coatings and wax residues using a suitable solvent before application.
**Limitations of Use**
- Not suitable for concrete, cement-based materials, or structural components
- Not recommended for zinc, brass, copper, lead, or other metal substrates
- Not for applications involving continuous water immersion or environments where the sealant is completely isolated from air before curing
- Not suitable for painted surfaces or projects requiring construction-grade sealants
**Product Features**
- **Superior Adhesion:** Designed for large glass panels, premium glass engineering, and aluminum alloy doors and windows, offering excellent bonding strength for durable sealing.
- **Outstanding Weather and Waterproof Performance:** Resists harsh environmental conditions, preventing water, moisture, and air infiltration to protect structural integrity.
- **Eco-Friendly and Non-Toxic:** Complies with environmental standards, odorless, pollutant-free, safe, and reliable for use.
- **Versatile Applications:** Suitable for various glass structures and assembly projects, including skylights, large showcases, and high-end doors and windows.
**Packaging and Colors**
- **Packaging Options:** 300ml cartridges
- **Standard Colors:** Black, White, Transparent (custom colors available upon request)
**Storage Conditions**
Store in a dry, ventilated environment at or below 25°C.
The product has a shelf life of 12 months from the date of manufacture. 
| PERFORMANCE DATA | ||
| Test Parameter | Unit | Result |
| As Supplied Tested at 23ºC and 50% RH | ||
| Specific Gravity | g/ml | 0.94±0.02 |
| Flow (sag or slump) | mm | 0 |
| Extrusion Rate | ml/minute | 140 |
| Skin Time | minute | 5~10 |
| Tack-free Time | hour | ≤1.0 |
| Curing time (5mm) | hour | ≤16 |
| As Cured-after 21 days at 23ºC and 50% RH | ||
| Durometer Hardness, Shore A | Points | 18 |
| Movement Capability | % | 25 |
| Tensile/Modulus at 50% Elongation | Mpa | 0.24 |
| Tensile/Modulus at 100% Elongation | Mpa | 0.28 |
| Ultimate Tensile Strength | Mpa | 0.32 |
| Ultimate Elongation at Break | % | 315 |
SCOPE OF APPLICATION AND APPLICATION SCENARIOS
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