Durable Construction PU Sealant for Strong Bonding
KASTAR CS Construction PU Sealant is a high-performance, one-component polyurethane sealant meticulously engineered to deliver durable and flexible sealing solutions for a wide range of construction applications. Its advanced formulation ensures exceptional adhesion to materials such as concrete, masonry, metal, wood, and glass, providing reliable and long-lasting seals that withstand the demands of both indoor and outdoor environments. Resistant to weathering, UV rays, and temperature fluctuations, KASTAR CS effectively accommodates joint movement, preventing cracks and water ingress. With a smooth, non-sagging consistency, this sealant is easy to apply using a caulking gun, ensuring a professional-grade finish that enhances the structural integrity and aesthetic appeal of construction projects.
Appearance: Smooth paste
Density (g/cm³): 1.40
Sagging properties (mm): 0
Shore A hardness (A°): 50
Tack free time (min): 80
Tensile strength (MPa): 6.5
KASTAR CS Construction PU Sealant is designed to meet the rigorous demands of modern construction projects, offering superior adhesion and flexibility for a variety of applications. Its polyurethane-based formula ensures strong bonding to materials such as concrete, masonry, metal, wood, and glass, making it ideal for sealing expansion joints, control joints, and other critical construction elements. This “construction PU sealant” boasts excellent resistance to weathering, UV exposure, and temperature fluctuations, ensuring that seals remain intact and effective over time.
The sealant’s flexible nature allows it to accommodate joint movement caused by structural shifts, thermal expansion, and contraction, preventing the formation of cracks and maintaining a watertight and airtight seal. Its non-sagging consistency facilitates easy application on vertical and horizontal surfaces, delivering a clean and professional finish without dripping or running. Additionally, KASTAR CS is highly resistant to moisture and chemicals, enhancing the longevity and durability of sealed joints in both residential and commercial construction projects. With a long shelf life and easy storage, KASTAR CS is the reliable choice for construction professionals seeking high-quality sealing solutions.
Expansion Joints: Provides flexible sealing for dynamic joints in buildings and concrete structures, accommodating movement without cracking.
- Control Joints: Ensures durable sealing for static joints in slabs, pavements, and industrial floors, preventing water ingress and structural damage.
- Façade Systems: Ideal for sealing curtain walls, window frames, and external panels, enhancing weatherproofing and energy efficiency.
- Roofing: Suitable for sealing roof joints, flashing, and penetrations to prevent leaks and maintain waterproofing integrity.
- Concrete Repairs: Perfect for patching and sealing cracks and gaps in concrete surfaces, ensuring long-lasting protection and structural stability.
- Window and Door Installations: Creates watertight and airtight seals around window and door frames, enhancing energy efficiency and preventing drafts.
- Industrial Structures: Reliable for sealing joints in warehouses, factories, and other industrial buildings exposed to harsh conditions.
| NO. | ITEM | DATA |
| 1 | Basic material | Polyurethane Polymer |
| 2 | Color | White, Gray, or Black |
| 3 | Consistency | Paste |
| 4 | Application Consistency | Caulking Gun |
| 5 | Net Weight | 600 ml |
| 6 | Average Nonvolatile(FSTM 9A) | 92% |
| 7 | Temperature Resistance | -20℃ to 120℃ |
| 8 | Service Temperature limits | -10℃ to 100℃ |
| 9 | Storage Temperature | 5℃ to 35℃ |
| 10 | Application Temperature | 5℃ to 40℃ |
| 11 | Skin Drying Time(mins) | 80 |
| 12 | Density | 1.40 |
| 13 | Shrinkage(mm) | 0 |
| 14 | Tack free time（min） | 80 |
| 15 | Curing rate(2mm/h) | 24 hours |
| 16 | Solid content (%) | 92% |
| 17 | Shelf life | 12 months |
| 18 | Storage | Store in a cool, dry place away from direct sunlight. |
| NO. | ITEM | DATA |
| 1 | Basic material | Polyurethane Polymer |
| 2 | Color | White, Gray, or Black |
| 3 | Consistency | Paste |
| 4 | Application Consistency | Caulking Gun |
| 5 | Net Weight | 600 ml |
| 6 | Average Nonvolatile(FSTM 9A) | 92% |
| 7 | Temperature Resistance | -20℃ to 120℃ |
| 8 | Service Temperature limits | -10℃ to 100℃ |
| 9 | Storage Temperature | 5℃ to 35℃ |
| 10 | Application Temperature | 5℃ to 40℃ |
| 11 | Skin Drying Time(mins) | 80 |
| 12 | Density | 1.40 |
| 13 | Shrinkage(mm) | 0 |
| 14 | Tack free time（min） | 80 |
| 15 | Curing rate(2mm/h) | 24 hours |
| 16 | Solid content (%) | 92% |
| 17 | Shelf life | 12 months |
| 18 | Storage | Store in a cool, dry place away from direct sunlight. |
KASTAR 281 Acrylic Liquid Nail – Strong & Reliable Formula
