Epdm Foam Sealing Strip | Custom Epdm Seals

Oct 12, 2025

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Jinjiang Yunli Technology Co., Ltd. is a premier manufacturer specializing in both standard and Custom EPDM Foam Sealing Strips. Our expertise lies in engineering these versatile seals to provide superior compression, weatherproofing, and durability for a vast range of applications.


EPDM Foam Sealing Strip: The Ultimate Compressible Seal

An EPDM Foam Sealing Strip, also known as a sponge seal, is a closed-cell rubber foam that combines the excellent weather-resistant properties of solid EPDM with the high compressibility of foam.

Key Characteristics & Advantages:

Excellent Compression & Recovery: Can be compressed up to 50% and will spring back to its original shape, ensuring a long-lasting, tight seal even in irregular gaps.

Superior Sealing: The foam structure conforms to surface imperfections, creating an exceptional barrier against air, water, dust, and noise.

Outstanding Weather Resistance: Inherits all the benefits of EPDM rubber: resistant to UV radiation, ozone, oxidation, and extreme temperatures (from -50°C to +120°C).

Waterproof & Buoyant: The closed-cell structure prevents water absorption, making it ideal for outdoor and marine applications.

Custom EPDM Seals: Tailored to Your Exact Needs

At Jinjiang Yunli, customization is our core strength. We don't just sell standard strips; we engineer seals to solve your specific challenges.

Our Custom EPDM Seal Capabilities Include:

Custom Profile Design (ODM):

Our engineering team can design and manufacture virtually any cross-sectional profile from your technical drawings or a sample.

We produce a wide range, including:

Rectangular & Square Strips

D-Shapes & P-Shapes

Hollow Tubular Seals

U-Channels & Complex Lip Seals

Custom Material Properties:

Density & Hardness: We can produce foam with different densities to balance softness and structural support.

Skinning: We can manufacture foam with a smooth, dense outer "skin" for enhanced durability and ease of cleaning.

Color: While black is standard, we can produce custom colors.

Custom Adhesive Backing:

We can apply high-performance acrylic or rubber-based adhesive with a protective release liner for easy installation on various surfaces.

Common Applications

Our EPDM foam strips and custom seals are used across industries:

Construction: Sealing windows, doors, curtain walls, and HVAC access panels.

Transportation: Sealing doors, hatches, and panels in automotive, marine, and RV industries.

Electronics: Gasketing for electrical enclosures, control boxes, and outdoor lighting to achieve IP ratings.

Industrial Machinery: Sealing access doors and panels to dampen noise and vibration.

Why Choose Jinjiang Yunli Technology?

Direct Factory Pricing: As the manufacturer, we offer competitive prices without intermediary markups.

Full In-House Control: We manage compounding, extrusion, and vulcanization, ensuring consistent quality.

Technical Expertise: Our engineers provide solutions, not just products.

Proven Export Experience: We reliably ship to customers worldwide.


Contact Us for Your Custom EPDM Sealing Solution

We invite you to send us your specifications, sketches, or samples for a free consultation and quotation. Let us create the perfect EPDM foam seal for your application.

Jinjiang Yunli Technology Co., Ltd.
Innovative Sealing Solutions, Engineered for You.

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