Automotive Sealing Systems
Door, trunk, hood, glass run channel and body opening weatherstrips for vehicle manufacturers and aftermarket buyers.
Since 2013, Onaseal has focused on R&D and production of sealing strip products, including door and window sealing strips, automotive weatherstrips, rubber extrusion profiles, filament tapes and hot melt glue solutions.
Explore our extensive range of industrial-grade sealing solutions, engineered for maximum longevity, extreme weatherability, and chemical resistance across heavy machinery, automotive, and construction applications.

Suitable for automotive sheet metal edges, enclosures, cabinets and industrial panels.

D / P / E / I profile foam strips for doors, windows, insulation and cushioning applications.

Door seals, channel seals, trunk seals and other customized vehicle sealing systems.
With state-of-the-art extrusion lines, custom compound formulation expertise, and direct-from-factory export capabilities, Onaseal offers scalable manufacturing tailored to your exact drawings, specifications, and volume requirements.
We specialize in custom extrusion tooling. Simply send your CAD drawings (.dwg/.dxf) or physical samples, and our engineers will develop precise sealing solutions matching your exact parameters.
Our products are manufactured from high-grade EPDM, PVC, Silicone, and TPE/TPV. We formulate custom compounds to ensure optimal hardness, high tensile strength, and extreme weatherability.
Operating under strict ISO 9001 and IATF 16949 standards, we utilize advanced continuous extrusion and co-extrusion technology to guarantee tight tolerance control and premium durability.
From secure reel spooling to robust palletized carton packaging, we follow strict international maritime and air cargo standards, ensuring safe, defect-free global deliveries.
Our industrial-grade sealing solutions are engineered to meet the demanding requirements of diverse global sectors.
Door, trunk, hood, glass run channel and body opening weatherstrips for vehicle manufacturers and aftermarket buyers.
Self-adhesive foam weatherstrip solutions for home improvement, building hardware and insulation distributors.
Flexible PVC / rubber edge trims for cabinets, enclosures, machinery and equipment protection.
Make your B2B process clear: drawings, samples, tooling approval, mass production and export shipping.
Share application photos, drawings, section samples or material requests.
Confirm section structure, material, hardness, tolerance and color requirements.
Arrange tooling if needed, produce samples and validate fitting performance.
Proceed with stable batch production, packaging and export delivery.
Our experienced engineering team is prepared to analyze your CAD drawings or physical cross-section samples to develop custom tooling and production-ready sealing profiles.