-
Weber Weberseal PU Sealant
Vendor:Weber 偉伯 -
Mapei Mapesil AC
Vendor:Mapei 馬貝 -
EMFI Emfimastic PU 25
Vendor:EMFI -
Sika Sikaflex Construction Sealant
Vendor:Sika 西卡 -
Fosroc Thioflex 600
Vendor:Fosroc 富斯樂 -
Fosroc Nitoseal MB175
Vendor:Fosroc 富斯樂
Joint Sealant / PU Sealant
Polyurethane (PU) joint sealants are flexible, durable materials used to seal expansion joints, movement joints and construction joints in buildings and infrastructure. They accommodate structural movement while maintaining a watertight seal.
Key Features
- High elasticity - Accommodates joint movement of +/-25% or more
- Paintable - Can be painted over with most paints
- Good adhesion - Bonds to concrete, masonry, metal and wood
- Weather resistant - Withstands UV, rain and temperature extremes
Applications
- Building expansion joints
- Concrete floor and pavement joints
- Facade and curtain wall joints
- Window and door perimeter sealing
- Precast concrete panel joints
Available Brands
- Sika - Sikaflex PRO, Sikaflex Construction
- DOWSIL - polyurethane sealant range
FAQ
Can PU sealant be used underwater?
Standard PU sealants are not suitable for permanent water immersion. For water-submerged joints, use a polysulphide or specialist sealant. WhatsApp us for product recommendations.
What is the difference between PU and hybrid sealant?
Hybrid sealants combine properties of silicone and polyurethane, offering good adhesion, paintability, and UV resistance. They are increasingly popular as a versatile alternative.
