NBR PVC Rubber Foam with Self-Adhesive

Self-Adhesive NBR/PVC Rubber Foam for HVAC Insulation and Sealing

Topsun self-adhesive NBR/PVC rubber foam is a flexible elastomeric foam material designed for thermal insulation, sealing, vibration damping and moisture-resistant applications. Adhesive backing can be applied to one side or both sides to simplify positioning and installation on suitable ducts, panels, equipment and other surfaces.

The NBR/PVC foam range is available in different densities, thicknesses, widths and colors. Existing product information lists widths from 1000 mm to 1800 mm, typical roll lengths of approximately 10 m and thicknesses mainly from 3 mm to 50 mm. Black is the main color, while other colors can be evaluated according to project requirements.

The referenced technical grade below has a closed-cell structure, density of 50–90 kg/m³, thermal conductivity of 0.038 W/m·K and a water vapor resistance index of ≥7000. This combination makes the material suitable for HVAC, refrigeration, equipment insulation, flexible sealing and vibration-control applications.

Self-Adhesive NBR/PVC Foam Product Features

• Closed-cell structure: supports thermal insulation and resistance to water vapor penetration.

• Self-adhesive backing: available with one-side or double-side adhesive for suitable installation requirements.

• Low thermal conductivity: the referenced technical grade lists thermal conductivity of 0.038 W/m·K.

• High moisture resistance: closed-cell construction and a listed water vapor resistance index of ≥7000 support insulation applications where moisture control is important.

• Flexible installation: the material can follow flat, curved and selected irregular surfaces.

• Vibration damping: flexible foam can help attenuate vibration between ducts, panels, joints and equipment components.

• Resistance to acid, fuel and oil: suitable grades can be considered for applications where these exposures are relevant.

• Weathering resistance: the existing product information lists good weathering, UV and ozone resistance.

• Custom converting: foam can be cut, sliced, laminated, die-cut and processed into application-specific parts.

NBR/PVC Rubber Foam Product Information

NBR/PVC Foam Technical Specification

The following table retains the existing technical data for the referenced NBR/PVC closed-cell foam grade. Buyers should confirm the required grade, thickness, adhesive construction and service conditions before ordering.

Note: the existing source table does not specify units for the listed upper and lower use-limit values. Confirm the applicable service-temperature range for the selected product grade before use.

NBR/PVC Rubber Foam Product Video

What Is Self-Adhesive NBR/PVC Rubber Foam?

NBR/PVC foam is a flexible rubber-based foam material commonly used in thermal insulation, sealing and vibration-control applications. The referenced product grade uses a closed-cell structure that supports low thermal conductivity and resistance to water vapor penetration.

Adding a self-adhesive layer converts the foam into a material that can be positioned directly onto suitable prepared surfaces. This is particularly useful on metal ducts, equipment panels and other applications where easier installation and positioning are required.

Topsun can provide one-side or double-side adhesive constructions according to the finished application. The adhesive surface should be matched to the substrate and installation environment.

The broader Topsun NBR/PVC range includes different density and cell-structure options. The technical table on this page specifically identifies the referenced grade as closed-cell foam.

Self-Adhesive NBR/PVC Foam for HVAC Duct Insulation

HVAC ductwork is one of the primary applications for flexible self-adhesive NBR/PVC foam. The material can be cut and positioned on suitable metal duct surfaces where thermal insulation and moisture resistance are required.

The adhesive backing helps hold the foam in position during installation, while the flexible structure allows the material to follow flat surfaces, corners and selected curved duct sections.

With a listed thermal conductivity of 0.038 W/m·K and water vapor resistance index of ≥7000 for the referenced grade, the material can be considered for HVAC insulation systems where heat transfer and moisture penetration need to be controlled.

NBR/PVC Foam for Refrigeration and Chilled-Water Applications

Flexible closed-cell NBR/PVC foam is also used around refrigeration equipment, chilled-water systems and other insulation applications where low thermal conductivity and resistance to water vapor penetration are important.

Self-adhesive sheet or roll material can be cut into suitable shapes for equipment panels, large surfaces and other locations where preformed insulation components are not practical.

Insulation thickness should be selected according to the equipment, operating conditions, ambient environment and condensation-control requirements of the project.

Self-Adhesive NBR/PVC Foam for Sealing and Vibration Damping

In addition to thermal insulation, flexible NBR/PVC foam can be used as a cushioning or isolation layer between suitable components.

Its elasticity can help attenuate vibration at joints, suspensions, panels and equipment interfaces. Adhesive backing allows strips, pads and converted components to be positioned during assembly.

For sealing applications, the required density, compression, thickness and adhesive construction should be selected according to the actual joint geometry and service environment.

Typical Applications of Self-Adhesive NBR/PVC Foam

One-Side vs. Double-Side Adhesive NBR/PVC Foam

Adhesive performance depends on the bonding surface, contamination, temperature, moisture and other installation conditions. The substrate and service environment should be provided when discussing a custom adhesive-backed product.

Closed-Cell NBR/PVC Foam for Moisture Control

The referenced NBR/PVC grade has a closed-cell structure. Instead of a network of interconnected pores, the foam contains cells that are predominantly isolated from each other.

This structure supports resistance to water vapor penetration and makes closed-cell NBR/PVC suitable for insulation applications where moisture ingress can affect thermal performance.

Correct installation remains important. Joints, seams and exposed edges should be handled according to the design requirements of the complete insulation system.

How to Select Self-Adhesive NBR/PVC Foam

Buyers should select NBR/PVC foam according to the complete application rather than thickness alone.

• Application: HVAC duct, refrigeration equipment, sealing, vibration control or another industrial use.

• Cell structure: confirm whether the project requires the referenced closed-cell grade or another NBR/PVC foam type.

• Density: specify the required grade where already known.

• Thickness: select according to insulation, sealing or cushioning requirements.

• Width and length: provide required roll or sheet dimensions.

• Adhesive construction: specify one-side or double-side adhesive.

• Bonding substrate: identify metal, panel or other surface material.

• Operating environment: provide temperature, moisture and relevant chemical exposure conditions.

• Fire-performance requirement: identify the required grade or test requirement where applicable.

• Finished dimensions: provide drawings for strips, pads, gaskets or custom parts.

• Estimated quantity: provide sample, trial and production quantities where available.

Custom NBR/PVC Foam Processing

Topsun can convert foam materials according to customer dimensions, drawings and finished component requirements.

1. Cutting: foam sheets and rolls can be cut according to customer dimensions.

2. Slicing: foam can be sliced to the required thickness for suitable products.

3. Lamination: hot-melt film lamination, flame lamination and pressure-sensitive adhesive lamination are available.

4. Laser Cutting: suitable foam components can be cut according to digital drawings.

5. Die Cutting: repeatable strips, pads, gaskets and custom foam components can be produced according to customer designs.

6. Compression Molding: three-dimensional molded foam and foam composite parts can be manufactured for suitable applications.

7. Engraving: suitable for packaging inserts, tool-box inserts and other customized foam components.

8. Silk-Screen Printing: logos and patterns can be printed on suitable foam surfaces.

9. Adhesive Backing: adhesive and release liner can be laminated onto the foam to produce self-adhesive sheets, rolls, strips, pads and custom components.

Foam Materials Available from Topsun

Topsun supplies NBR/PVC foam, EVA foam, PE foam, XPE foam, IXPE foam, CR foam, EPDM foam, neoprene foam, SBR foam, NBR foam and micro-cell soft PVC foam. Materials can be supplied as sheets and rolls or converted into customized components.

About Topsun Foam

Topsun supplies foam materials and customized foam products for HVAC, automotive, construction and industrial buyers. Customers can provide density, thickness, width, adhesive requirements, drawings and application information for product evaluation.

Our facility is located in Changzhou City, Jiangsu Province, China, with convenient access to Shanghai Port for international shipments.

Self-Adhesive NBR/PVC Rubber Foam FAQ

What is self-adhesive NBR/PVC rubber foam?

Self-adhesive NBR/PVC rubber foam is flexible NBR/PVC foam combined with an adhesive backing and release liner. It is used for thermal insulation, sealing, cushioning and vibration-control applications where easier positioning during installation is required.

Is this NBR/PVC foam closed cell?

The technical grade shown in the specification table is closed-cell NBR/PVC foam. Topsun's broader NBR/PVC range also includes other foam structures, so the required grade should be specified when ordering.

What is the density of the self-adhesive NBR/PVC foam?

The existing product range information lists densities from 50 to 150 kg/m³. The specific technical grade shown in the table on this page lists density from 50 to 90 kg/m³. Confirm the required grade according to the application.

What thicknesses are available?

Existing product information lists thicknesses mainly from 3 mm to 50 mm. Available thickness should be confirmed together with density, roll dimensions and adhesive construction.

Can Topsun provide one-side adhesive NBR/PVC foam?

Yes. One-side adhesive is available for suitable applications where one surface of the foam needs to be attached to a duct, panel or other substrate.

Can Topsun provide double-side adhesive NBR/PVC foam?

Yes. The existing product information includes double-side adhesive as an available option. The required adhesive construction should be confirmed according to the application and bonding surfaces.

Is self-adhesive NBR/PVC foam suitable for HVAC ducts?

Yes. Flexible NBR/PVC foam is used for suitable HVAC duct insulation applications. Adhesive backing can help position the insulation on clean, prepared duct surfaces during installation.

What is the thermal conductivity of this NBR/PVC foam?

The existing technical specification lists thermal conductivity of 0.038 W/m·K according to ASTM C 534 for the referenced grade.

What is the water vapor resistance index?

The referenced technical grade lists a water vapor resistance index of ≥7000 according to DIN EN 12086.

Can NBR/PVC foam help reduce vibration?

Flexible NBR/PVC foam can act as a cushioning layer between suitable components and help attenuate vibration at ducts, joints, suspensions, panels and equipment interfaces. Final performance depends on density, thickness and assembly design.

Can NBR/PVC foam be die-cut into custom gaskets and pads?

Yes. Topsun provides cutting and die-cutting capabilities for suitable foam materials. Customers can provide finished dimensions or drawings for strips, pads, gaskets and other custom components.

What information should I provide for a quotation?

Please provide the required density if known, thickness, width, length, one-side or double-side adhesive requirement, application, bonding substrate, service conditions, finished dimensions and estimated quantity.

How should the bonding surface be prepared?

The bonding surface should be suitable for the selected adhesive and should be prepared according to the installation requirements. Surface material, contamination, moisture and operating conditions can affect adhesive performance.

How can I request an NBR/PVC foam sample?

Send your product requirements to july@topsunfoam.com, including density if known, thickness, dimensions, adhesive construction, application and estimated quantity for evaluation.