Backer rod

This is a pre-formed, profiled closed-cell foam sealant strip specifically engineered for the joints in architectural windows, doors, curtain walls, and metal panel systems. Manufactured from high-performance closed-cell foam, it offers exceptional compression recovery, long-lasting sealing, and superior weather resistance, making it a critical component for achieving air tightness, water tightness, sound insulation, and energy efficiency in modern buildings. Key Features: Excellent Sealing Performance: The unique profile allows it to perfectly fill complex and irregular joints, effectively blocking the infiltration of air, rainwater, dust, and noise. High Thermal Insulation: The closed-cell structure significantly reduces heat transfer caused by air convection, greatly enhancing the overall thermal performance of the building envelope and contributing to energy savings. Durable Weather & Aging Resistance: Capable of withstanding harsh environments including UV radiation, ozone, extreme temperatures (-40°C to 90°C), and moisture. It ensures long service life with stable performance without degradation. Chemically Inert & Eco-Safe: The material is stable and will not react with contacted construction materials (such as aluminum alloy, glass, coatings). It is non-toxic, harmless, and complies with environmental standards. Easy Installation & Wide Applicability: The pressure-sensitive adhesive backing enables fast and secure installation. It is widely used for sealing joints in unitized curtain walls, system fenestration, prefabricated walls, and metal roofs. Typical Applications: Sealing joints between curtain wall panels. Installation sealing between window/door frames and building walls. Sealing lap joints in metal roof and wall cladding. Filling joints between prefabricated concrete elements.