Butyl sealing tape is a never-curing self-adhesive sealing material manufactured through processes such as mixing and extrusion, using high-purity butyl rubber as the primary base, combined with tackifying resins, reinforcing fillers, and anti-aging additives. It exhibits excellent adhesion to a variety of polar and non-polar substrates, including metals, plastics, glass, stone, and wood. This material not only offers outstanding waterproofing and sealing capabilities as well as resistance to chemical media, but also maintains stable physical properties across a broad temperature range. It is an environmentally friendly, easy-to-apply, high-performance engineering sealing material.

Key Product Characteristics

Long-lasting viscoelasticity and deformation adaptability: The material remains non-curing over time, retaining good cohesion and adhesion. It effectively compensates for joint displacement caused by thermal expansion and contraction, vibration, or settlement, offering excellent creep recovery and compliance, preventing sealant layer cracking, and ensuring long-term sealing reliability.

Exceptional environmental resistance: Possesses excellent resistance to UV light, ozone, acids, alkalis, and damp heat aging. With a wide applicable temperature range (-40°C to 100°C), it does not flow at high temperatures nor become brittle at low temperatures, maintaining performance stability even in harsh climatic and chemical environments.

Environmental and safety properties: The product is 100% solid content, solvent-free, with very low VOC content, non-toxic and odorless. It complies with environmental regulations such as RoHS and REACH, making it a recommended sealing material for green building projects.

Convenient and efficient application: Designed with self-adhesive properties, it only requires peeling off the release film for application on clean and dry substrates, without the need for primers or heat application, significantly improving sealing operation efficiency and reducing overall costs.

Main Application Fields

Construction engineering: Used for sealing joints in prefabricated building panels, steel structures, overlapping seams of roof waterproofing membranes, door and window framing, and air and water tightness treatments in curtain wall systems.

Automotive manufacturing and transportation: Applied in automotive interior bonding, wire harness sealing and bundling, bus floor sealing, ship bulkhead waterproofing, and sealing seams in rail transit vehicles.

Composite material molding领域: Serves as a vacuum bag sealing material in Vacuum Assisted Resin Infusion (VARI) and autoclave molding processes, used for edge sealing in the production of components such as wind turbine blades and aerospace composites.

Communication and energy equipment: Widely used for waterproof sealing in optical cable junction boxes, base station cabinets, new energy battery pack protection, solar panel frames, and power transmission and distribution equipment.