Professional Rubber Seal Strip Manufacturer in China
As a leading EPDM PVC TPE Extrusion Profiles Supplier, we support OEM/ODM, custom profiles by drawings or samples, fast sampling and stable bulk production.
Support for custom mold development & OEM manufacturing
Low MOQ requirements to facilitate market trial orders
Drawing or sample-based rapid prototyping in 24h
Export-grade robust pallet packaging guaranteed
Featured Catalog Categories
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.
Rubber & PVC Edge Trim
Suitable for automotive sheet metal edges, enclosures, cabinets and industrial panels.
Self-Adhesive Foam Seals
D / P / E / I profile foam strips for doors, windows, insulation and cushioning applications.
Automotive Weatherstrips
Door seals, channel seals, trunk seals and other customized vehicle sealing systems.
Your Strategic Partner in High-Performance Sealing & Extrusion
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.
OEM/ODM Customization
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.
Premium Compounds & Materials
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.
Precision Manufacturing & Quality
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.
Export-Grade Logistics
From secure reel spooling to robust palletized carton packaging, we follow strict international maritime and air cargo standards, ensuring safe, defect-free global deliveries.
Engineered for Real-World Applications
Our industrial-grade sealing solutions are engineered to meet the demanding requirements of diverse global sectors.
Automotive Sealing Systems
Door, trunk, hood, glass run channel and body opening weatherstrips for vehicle manufacturers and aftermarket buyers.
Door & Window Insulation
Self-adhesive foam weatherstrip solutions for home improvement, building hardware and insulation distributors.
Industrial Edge Protection
Flexible PVC / rubber edge trims for cabinets, enclosures, machinery and equipment protection.
Construction Weatherstrips
Heavy-duty rubber profiles and expansion joint seals for architectural curtain walls, bridge construction, and infrastructures.
Solar Panel Sealing Strip Manufacturer
Specialized EPDM and silicone sealing gaskets for solar PV panels and mounting systems, designed for 25+ years of outdoor durability.
Technical Resources & Industry Insights
Deep dive into sealing technology, material comparisons, and professional installation guides to help you make informed decisions for your projects.
EPDM vs. Silicone Sealing Strips
A comprehensive comparison of weather resistance, temperature ranges, and cost-effectiveness for industrial sealing applications.
The Ultimate Installation Guide
Professional tips on surface preparation, adhesive bonding, and gap compression for long-lasting sealing performance.
Simple OEM Cooperation Process
Make your B2B process clear: drawings, samples, tooling approval, mass production and export shipping.
Send Inquiry
Share application photos, drawings, section samples or material requests.
Profile Review
Confirm section structure, material, hardness, tolerance and color requirements.
Sample & Test
Arrange tooling if needed, produce samples and validate fitting performance.
Mass Production
Proceed with stable batch production, packaging and export delivery.
Ready to Start Your Custom Sealing Project?
Send your design drawings or custom dimensions now to receive an engineered quote within 24 hours. Export-grade robust pallet packaging guaranteed.