Zhuhai Onaseal Technology Co., Ltd

Custom Rubber Seal Strip Manufacturer in China

Onaseal manufactures custom EPDM, PVC, TPE, silicone and foam sealing profiles in Zhuhai, China. OEM and ODM projects can start from a cross-section drawing, dimensional requirements or a physical sample. Material, hardness, tooling, tolerances, sampling and bulk-production requirements are reviewed for each industrial, automotive or construction application.

View Product Catalog Send Drawing / Inquiry

Custom Mold Support
Support for custom mold development & OEM manufacturing

Trial Order Requirements Reviewed
Trial-order quantity and terms are confirmed after profile and project review

Sample Schedule Review
Drawing or sample-based prototyping schedule confirmed after review

B2B Export
Export packaging options confirmed for each order

Start With Your Requirement

Find the Right Seal Faster

Choose a common buying route or send a drawing, profile photo or physical sample for an OEM recommendation.

Doors & Windows

Self-Adhesive Foam Weatherstrips

Compare D, P, E and I profiles by gap size, compression and adhesive requirement.

Compare Foam Seals

Automotive

Vehicle Door & Body Seals

Review EPDM profiles for doors, trunks, glass channels and body openings.

View Automotive Seals

Panel Protection

Metal-Reinforced Edge Trim

Select grip range, carrier type, bulb position, color and cut length.

View Edge Trim

OEM / ODM

Custom Profile From Drawing

Send section dimensions, material, hardness, quantity and application details.

Send Drawing / Sample

Browse Priority Products Request Sample Availability

Main Product Families

Featured Catalog Categories

Compare rubber extrusions, self-adhesive foam seals, automotive weatherstrips, edge trims and D type rubber fenders. Final material and performance requirements are confirmed for each application.

Edge Trim

Rubber & PVC Edge Trim

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

Foam Seals

Self-Adhesive Foam Seals

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

Automotive

Automotive Weatherstrips

Door seals, channel seals, trunk seals and other customized vehicle sealing systems.

Marine & Dock

D Type Rubber Fenders

Hollow or solid rubber fender profiles with custom dimensions, lengths and mounting-hole options.

Why Buyers Choose Onaseal

Custom Rubber Profile Manufacturing Support

With extrusion, material selection and export-support capabilities, Onaseal develops sealing profiles according to drawings, samples, 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

Projects can be reviewed for EPDM, PVC, silicone and TPE/TPV constructions. Compound properties, hardness and required documentation are confirmed against the application and agreed specification.

Precision Manufacturing & Quality

We define material, dimensional and inspection requirements for each project, with continuous extrusion and co-extrusion options selected according to the profile design.

Export-Grade Logistics

Packaging options include reel spooling, cartons and palletized export packing, selected according to product shape, quantity and shipping method.

Case / Application Ideas

Rubber Sealing Applications

Review sealing profiles by application, then send the installation interface, dimensions and environment for project-specific evaluation.

Automotive EPDM door and body weatherstrip profiles

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.

Rubber and PVC edge trim profiles for industrial panel protection

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, developed for long-term outdoor sealing subject to material selection and application conditions.

B2B Knowledge Hub

Technical Resources & Industry Insights

Use buyer-focused guides for material selection, profile measurement, manufacturing workflow, quality planning and installation validation.

Material Tech

EPDM vs. Silicone Sealing Strips

Compare typical temperature guidance, weather, fluids and compound-specific selection limits.

Guide

Define stage-by-stage controls, acceptance references, records and repeat-order change management.

View Quality Matrix →

View All Resources View Quality Control

Workflow

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 drawings or dimensions for an engineering review, quotation and suitable export-packaging recommendation.

Request A Quote Learn About Us

Actual Factory & Production

See Where Onaseal Sealing Profiles Are Produced

Authentic photographs supplied by Onaseal showing foam weatherstrip inventory and production-ready rolls. Review more factory, tooling and inspection images on our manufacturing page.