Butyl round cord is designed to seal joints and openings with durable, performance material. Key specifications: length about 4 m, thickness about 9.5 mm, and long enough to seal approximately three headlight assemblies. It can be easily cut to fit any required length. Key benefits Nondrying, noncuring synthetic composite rubber that maintains viscosity and elasticity for reliable longterm sealing working temperature tolerance with strong antileakage, antideformation, antivibration, and weather and ageingresistance Nontoxic and odourless for safe handling and use Easy to use Easy to lay and press around the seam; simply tear the seal from its paper backing and apply For adhesion, ensure the welding spot is dry, clean, and of dust, oil, and grease Installation is around 10 degrees Celsius; surfaces cooler than this may cause stiffness and slower shaping Working pattern and compatibility Provides reliable closure against wind, water, dust, oil, steam, moisture, corrosive chemicals, and other leaks Suitable for use on glass, fiberglass, wood, coated or uncoated metals, plastic, and rubber in tight corners, unusual curves, uneven or serrated surfaces The paintable surface supports a seamless, clean, dry, and durable waterproof installation Applications Automotive sealing: ideal for sealing headlights and other assemblies to prevent moisture and air ingress General joints: suitable for sealing glass, metal, wood, plastic, and rubber components on vehicles or equipment Outdoor and custom enclosures: effective for weatherproofing curved or irregular joints on boats, RVs, or other outdoor installations