Where are these seals commonly used?

They are widely used in automotive doors/windows, building weatherstripping, industrial cabinet gaskets, marine equipment, and DIY home improvement projects.

Can you cut the seals to custom lengths?

Yes. We can supply the strips in continuous coils or cut them to your required fixed lengths (e.g., 1m, 2m, 5m).

What is your lead time?

Mass production lead time is 10 to 20 working days, depending on order quantity and profile complexity.

Do you provide warranty?

We offer a 12-month quality warranty against manufacturing defects.

What trade terms do you accept?

We support FOB, EXW, and CIF trade terms.

High-Quality D-Shape Rubber Sealing Strip for Insulation Solutions

Name: High-Quality D-Shape Rubber Sealing Strip for Insulation Solutions
Brand: Xingtai Yinghua Rubber Machinery Manufacturing Co., Ltd.
SKU: 2193359932

Hebei, ChinaXingtai Yinghua Rubber Machinery Manufacturing Co., Ltd.

US$1.00

100,000-499,999 Meters

US$0.80

500,000+ Meters

Sample price:US$0.00/meter.Request sample

Product profile

Customization

Available

Material

Sponge Rubber

Usage

Automobile, Machinery, Doors & Windows

Model NO.

Special-shaped Rubber Strip

Type

Hollow Sealing Strip

Sectional Shape

D-Shape

Performance

Weather & Aging, Noise & Vibration Resistance

Vulcanization

Continuous Vulcanization

Standard

Standard, Nonstandard

Width

5 to 50mm

Height

3 to 30mm

Hardness of Sponge

20 to 40 Shore a

Hardness of Solid

40 to 70 Shore a

Operating Temperature

-40℃ to +120℃ (EPDM)

Color

Black (Standard) / Custom Colors

Length

1m, 2m, 5m, 10m, or Continuous Coils

Adhesive

Optional 3m Self-Adhesive Backing

Transport Package

Carton Packaging

Specification

as requirement

Trademark

YINGHUA

Origin

Xingtai, China

HS Code

4006901000

Key features

Superior Compression Recovery: D-shaped profile adapts to uneven surfaces with excellent recovery after compression.

Excellent Weather Resistance: EPDM material offers outstanding ozone, UV, and weather resistance for outdoor use.

Noise & Vibration Damping: Soft rubber structure effectively absorbs sound and vibration for quieter environments.

Customizable Design Options: Available in various sizes, materials, hardness, and optional adhesive backing.

Versatile Installation: Optional 3M self-adhesive backing allows for quick and easy mounting on surfaces.

12-Month Quality Warranty: Covers all mechanical defects with free replacement or compensation for 12 months.

24/7 Technical Support: Professional team provides round-the-clock online support for material and design.

Company profile

Xingtai Yinghua Rubber Machinery Manufacturing Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2013-07-08Nearest Port: tianjinAverage Response Time: ≤0.53hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP

AI-Powered supplier vetting

SummaryThe supplier identifies itself as a factory and reports broad customization, ODM, OEM for well-known brands, raw-material traceability, and 100% finished-product inspection. It has export experience, self-operated import/export rights, overseas installation and maintenance services, and stated production of approximately 20 production lines annually. Evidence also indicates more than 200 domestic and overseas rubber-enterprise customers. However, the supplier lacks written procedures or records for service assessment, corrective and preventive actions, and complaint handling; it also reports no valid manufacturing-capacity contract with related subcontractors, no overseas warehouse or showroom, and no available SDK. Certification evidence is limited to a company description referencing an ISO 2000 management system, without documentation or a clearly identified certification standard.

Supplier typeThe supplier explicitly identifies its company nature as a factory. Its description also presents production capacity and equipment-related manufacturing activities, supporting classification as a manufacturing supplier rather than only a trading or service entity.

R&D capabilityThe supplier reports new products within the past year, ODM service availability, and broad R&D design services. It does not have an available SDK, but the evidence still explicitly supports active product development and design capability.

Production capacityThe supplier reports lathe and drilling-machine facilities, in-stock capability, and annual production of about 20 production lines while serving more than 200 rubber enterprises. A deficiency is indicated by the absence of a valid manufacturing-capacity contract with related subcontractors, but the stated factory capacity and equipment support production capability overall.

Customization capabilityBoth R&D and design-service records list customization from samples, designs, minor customization, flexible customization, and full customization. This is explicit evidence of a broad customization offering.

Client casesThe supplier reports OEM service for well-known brands, serving more than 200 well-known rubber enterprises domestically and overseas, and exporting for 16 years with 51%–70% of sales from exports. These statements provide substantial customer and market-experience evidence, although individual customer names or documented case studies are not supplied.

Product Q&A

Q:What materials are used for these D-shaped rubber seals?

We mainly use EPDM sponge rubber for standard products, which offers excellent weather and aging resistance. We can also provide NBR (oil-resistant), silicone (high/low temperature resistant), and solid rubber options based on your requirements.

Q:Can you produce custom sizes and profiles?

Yes, we offer full OEM & ODM customization. We can extrude D-shaped, half-round, rectangular, and other profiles according to your drawings or samples, with custom width, height, and length options.

Q:What is the temperature resistance range?

Standard EPDM sponge: -40 degree Celsius to +120 degree Celsius Silicone sponge: -50 degree Celsius to +180 degree Celsius NBR sponge: -30 degree Celsius to +100 degree Celsius

Q:Are these seals self-adhesive?

We offer optional 3M self-adhesive backing for easy installation. You can choose between adhesive and non-adhesive versions based on your application.

Q:What are the advantages of the D-shaped design?

The semi-circular profile provides: Soft, uniform sealing pressure that adapts to uneven gaps Low compression set, ensuring long-term performance Effective noise and vibration damping