The 5x15 rectangular EPDM foam gasket is an elastic foam rubber profile designed for applications requiring cushioning, gap filling, surface protection and supporting sealing between mating components.

The rectangular cross-section has two different dimensions, making installation orientation an important consideration. The 5x15 mm specification should therefore be confirmed by a technical drawing or physical sample before production.

The actual compression and sealing performance depends on the material structure, gasket geometry, compression level and installation conditions.

Key Features of the 5x15 EPDM Foam Profile

Rectangular Cross-Section

Unlike a round gasket, a rectangular 5x15 profile has a defined width and height.

This makes it suitable for applications where the installation groove or contact surface has a corresponding rectangular geometry.

The orientation of the profile should be clearly defined on the technical drawing.

Elastic Foam Structure

EPDM foam provides a flexible and compressible structure that can be used as a cushioning layer between mating components.

The actual recovery and compression behavior depends on the specific foam formulation and construction.

Gap Filling and Supporting Sealing

When correctly compressed, a foam gasket can create a contact layer between two surfaces.

Its effectiveness depends on:

• Groove dimensions.
• Surface condition.
• Compression.
• Cross-sectional geometry.
• Joint design.
• Operating environment.

Therefore, the 5x15 dimension alone should not be used to guarantee sealing performance.

Where Can a 5x15 EPDM Foam Gasket Be Considered?

Depending on the design, the profile may be considered for:

• Gap filling.
• Cushioning.
• Surface protection.
• Supporting sealing.
• Vibration reduction.
• Equipment covers.
• Enclosures.
• Industrial assemblies.
• Technical structures with suitable grooves.

The final suitability should always be evaluated against the actual installation and operating conditions.

How to Confirm the 5x15 Dimension

For rectangular profiles, the two dimensions should be clearly identified.

Customers should confirm:

Width × Height = 5 × 15 mm

or provide a technical drawing showing the two dimensions.

This prevents confusion when the gasket must be installed in a specific orientation.

A used gasket should also not be measured in isolation because long-term compression may change its original dimensions.

EPDM Foam for Outdoor Applications

EPDM is commonly selected for applications requiring resistance to weathering, ozone and UV exposure.

However, actual performance depends on the specific EPDM formulation and foam structure.

For outdoor applications, customers should provide information regarding:

• Ambient temperature.
• UV exposure.
• Moisture.
• Water exposure.
• Operating cycles.
• Required service conditions.
• Contact with oils or chemicals.

EPDM should not automatically be considered suitable for every chemical or oil environment.

5x15 Rectangular Foam Gasket vs. Round Gasket

A rectangular gasket and a round gasket should not be considered interchangeable simply because their dimensions are similar.

The rectangular profile provides a defined width and height, while a round gasket provides a circular cross-section.

The choice depends on:

• Groove geometry.
• Available space.
• Required compression.
• Contact area.
• Installation direction.
• Sealing requirements.

For a different cross-sectional concept, customers can compare the application with a rectangular EPDM foam gasket profile.

When Should the Gasket Be Custom Manufactured?

Custom manufacturing may be appropriate when:

• The required 5x15 profile is not available as a standard item.
• A specific length is required.
• The gasket must match an existing sample.
• The groove has a non-standard geometry.
• Large quantities are required.
• A technical drawing specifies a particular cross-section.

For custom production, customers should provide:

• Physical sample.
• Technical drawing.
• Cross-section dimensions.
• Required length.
• Quantity.
• Groove dimensions.
• Operating environment.

REP Vietnam also works with custom foam EPDM profiles such as E- and B-shaped gaskets for specific sealing requirements.

How to Measure a 5x15 EPDM Foam Gasket

Step 1 – Measure the Width

Use a caliper to measure the first side of the rectangular cross-section.

Step 2 – Measure the Height

Measure the second side and identify its orientation.

Step 3 – Check Several Points

Measure different sections of the gasket to identify deformation or dimensional variation.

Step 4 – Measure the Groove

The groove dimensions are essential for determining whether the gasket can achieve the required compression.

Step 5 – Confirm Required Length

Specify the total length or individual cut lengths.

Step 6 – Provide Photos

Photos of the cross-section and installation location can help the technical team understand the application more accurately.

Common Selection Mistakes

Confusing Width and Height

A 5x15 profile has a specific orientation. Mixing up the two dimensions can result in an unsuitable installation.

Measuring Only the Old Gasket

A used gasket may have permanent deformation caused by long-term compression.

Ignoring Groove Dimensions

Even a correctly manufactured 5x15 gasket may not fit if the groove geometry is unsuitable.

Selecting Without Considering Compression

An oversized gasket can create excessive closing force, while an undersized gasket may not provide sufficient contact.

Ignoring the Operating Environment

Material selection should consider temperature, moisture, weather exposure and chemical contact where applicable.

Frequently Asked Questions

What is a 5x15 EPDM foam gasket?

It is an EPDM foam rubber profile with a rectangular 5x15 mm cross-section, intended for applications such as gap filling, cushioning and supporting sealing.

Is 5x15 a square profile?

No. A 5x15 profile is rectangular because the two cross-sectional dimensions are different.

Which side is 5 mm and which side is 15 mm?

The orientation should be confirmed by technical drawing or sample. Customers should clearly specify width and height when ordering.

Can EPDM foam be used outdoors?

EPDM is commonly considered for applications involving weather, ozone and UV exposure. Actual suitability depends on the specific material formulation and operating conditions.

Can the gasket be supplied in a custom length?

The required length can be specified when ordering. Customers should provide the total required length, individual cut length and quantity.

Can REP manufacture according to a sample?

Customers can provide a physical sample, photograph or technical drawing for evaluation and quotation.

Can a 5x15 gasket directly replace another gasket?

Not necessarily. Groove geometry, compression, material and operating conditions should be evaluated before replacement.

What information is required for quotation?

Provide the cross-section dimensions, required length, quantity, sample or drawing, installation details and operating environment where relevant.

Contact REP Vietnam

REP VIETNAM JOINT STOCK COMPANY

Hotline: +84 906 487 198 – +84 866 783 478

Email: info@repvn.com – seller@repvn.com

Websites: repvn.com – reprubber.com – gioangcaosilicon.com

For technical consultation and quotation, please provide the 5x15 cross-section, physical sample or drawing, required length, quantity, groove dimensions and operating conditions.

REP Vietnam can evaluate the requirements and advise on a suitable EPDM foam gasket configuration for your application.