Professional Corner Crimping Glue for Aluminum Windows & Doors
As a leading adhesive solution，CHEMPU understand the specific demands of the window and door manufacturing industry in 2026. Whether you are producing high-end thermal break aluminum windows or heavy-duty industrial doors, our Polyurethane Corner Glue series ensures structural integrity and a seamless finish.
The 2KWS 838 Series: Double the Strength, Double the Reliability
- Key Features:
- Instant Mechanical Strength: Achieves a functional stability of bonded corners in just 30 minutes.
- Extreme Durability: With a shear strength exceeding 10.5 N/mm², it outperforms traditional corner codes.
- All-Weather Performance: Resistant to temperatures ranging from -40°C to +80°C, making it perfect for the humid climate.
- Gap Filling: Fills internal cavities perfectly without shrinkage, ensuring a tight seal against moisture.
- Typical Applications:
- Structural bonding of corner connections in metal doors, windows, and facades.
- High-strength bonding of aluminum, stainless steel, and fiber-reinforced plastics.
The WS 1838 Series: Ultra-Fast Assembly for Rapid Production
- Key Features:
- Lightning-Fast Tack Free: Surface dries in approximately 10 minutes, allowing for immediate handling.
- Easy Application: No mixing required. Simply apply with a caulking gun and clamp for 6 hours.
- Superior Water Resistance: Formulated to meet the DIN EN 204 D4 standard, ensuring it holds strong even during the rainy season.
- Versatile Bonding: Excellent adhesion to wood, metal, stone, and insulation materials.
- Typical Applications:
- Rapid bonding of wooden elements and stair renovations.
- Chemical anchoring and insulation panel bonding in construction.
Why Choose Our Adhesives in 2026?
- Local Expertise, Global Standards: Manufactured in Guangzhou to meet international ISO standards, ensuring you get the best of both worlds.
- Solvent-Free & Odorless: Both products are 100% solvent-free, providing a safer working environment for your factory.
- Optimized for Efficiency: With pot lives designed for the May climate (neither too fast nor too slow), our adhesives prevent waste and ensure smooth processing.
Technical Specifications
| Feature | 2KWS 838 (2-Component) | WS 1838 (1-Component) |
|---|---|---|
| Chemical Base | Polyurethane | Polyurethane |
| Mixing Ratio | 1:1 | N/A (Moisture Cure) |
| Tack-Free Time | 30′ | 10′ |
| Clamping Time | 30′ | 6 Hours |
| Shear Strength | > 10.5 N/mm² | > 7.5 N/mm² |
| Temperature Range | -40°C / +80°C | -40°C / +100°C |
| Best For | Heavy-Duty Industrial Use | Fast Assembly & Wood/Metal |
The 2KWS 838 (2-component) requires mixing and offers the highest structural strength, ideal for heavy industrial doors. The WS 1838 (1-component) is moisture-curing, requires no mixing, and is perfect for faster production lines and general construction bonding.
Yes. Both adhesives are specifically formulated to be water-resistant. The WS 1838 is particularly effective as it cures with moisture, making it suitable for the humid climate
Both products have a shelf life of 12 months when stored in a cool, dry place (5°-25°C). Please keep them away from direct heat sources in your warehouse.
