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Carbon black is critical in addressing the manufacturing, functional, aesthetically pleasing, and cost criteria of vehicle weather stripping.
The following materials are commonly used in automotive weatherstripping: TPE (thermoplastic elastomer) is a plastic-rubber blend.
Blend of thermoplastic olefin (TPO) polymer with filler. Silicone (for sunroofs that must withstand severe heat).
Weatherstripping is simply material strips that are adhered to doors and windows. When properly placed, these materials seal the edges of doors and windows when they are closed, preventing the flow of air and any undesirable stuff in the air.
The Global automotive weather stripping carbon black market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Automotive weather stripping is crucial for keeping water from leaking into the passenger compartment as well as decreasing wind noise and dampening sound to improve ride comfort for both drivers and passengers.
Because weather stripping is vital to the overall aesthetics of the vehicle, the appearance of the vehicle both when new and over time is a key issue for automobile makers.
Carbon black, in addition to the EVR, is critical in addressing the manufacturing, functional, cosmetic, and cost criteria of vehicle weather stripping.
Carbon black percentage in standard EPDM-based rubber weather stripping formulations can reach 30–35 wt%.A high EVR in the rubber component can aid in the prevention of contact corrosion between the rubber part and the automobile body, inserts, or clamps.
As a result, several automobile manufacturers are beginning to specify an EVR for automotive weather stripping ranging from 106 to 109 •cm. For performance, processing, and cost considerations, a typical EPDM-based dense weather stripping part today contains up to 30-35 wt% carbon black and has an EVR level of 103-104•cm.
Rubber manufacturers are faced with the difficulty of meeting high EVR criteria while also meeting other application performance and manufacturing requirements at an affordable total cost.