OSI® HM270 Construction Silicone Sealant is a high-performance, one-part silicone sealant designed for demanding exterior and perimeter sealing applications. This UV-resistant, weatherproof sealant offers long-lasting flexibility and adhesion, making it ideal for use on windows, doors, masonry, and expansion joints in both residential and commercial construction.
Key Features & Benefits
- Durable & Flexible: Remains permanently flexible after curing
 - Weatherproof Seal: Resists rain, wind, and harsh temperatures
 - UV-Resistant: Withstands prolonged exposure to sunlight
 - Wide Application: Suitable for concrete, masonry, windows, and doors
 - Paintable Surface: Compatible with most exterior paints after curing
 
Specifications
| Product Name | OSI® HM270 | 
| Type | 100% Silicone Sealant | 
| Size | 10.1 oz Cartridge | 
| Color | Clear or White (varies) | 
| Application Areas | Windows, Doors, Concrete, Masonry | 
| Cure Time | 24 Hours (Full Cure) | 
Choose OSI® HM270 for reliable, flexible, and weatherproof sealing on your next project. Order now and experience contractor-grade performance built to last.
          
        
    
    
    
