Open Cell NBR/PVC Foam Roll

Open Cell NBR/PVC Foam Roll for Acoustic and Vibration Control

Topsun open cell NBR/PVC foam roll is a flexible nitrile rubber and PVC foam material designed for acoustic absorption, cushioning, vibration damping, gap filling and custom converted foam components. Continuous roll formats are suitable for automotive, HVAC, equipment, construction and other industrial applications requiring large-area foam processing.

Open-cell foam contains an interconnected cellular structure that allows the material to compress easily and interact with airborne sound. This makes it useful for selected acoustic and NVH applications where sound absorption, cushioning and vibration control are more important than moisture sealing.

Current Topsun product information lists tensile strength from 160–450 kPa, elongation from 180–250%, standard sheet sizes of 1000×2000 mm and 1500×2000 mm, and thicknesses from 1–50 mm. The broader NBR/PVC foam range includes roll widths from 1000–1800 mm and typical roll lengths of approximately 10 m.

Open Cell NBR/PVC Foam Roll Product Information

Why Use Open Cell NBR/PVC Foam?

• Sound absorption: open-cell structure allows acoustic energy to enter the foam structure, making it suitable for selected sound-control applications.

• Vibration damping: flexible foam can reduce direct contact and help attenuate vibration between suitable components.

• Cushioning: compressible foam is useful for pads, spacers and protective interfaces.

• Soft compression: suitable for assemblies where high closing force is undesirable.

• Gap conformability: flexible foam can adapt to irregular surfaces and variable gaps.

• Continuous roll format: suitable for slitting, laminating, cutting and continuous converting processes.

• Custom fabrication: suitable foam grades can be converted into sheets, strips, pads, tapes and die-cut parts.

• Adhesive backing: one-side or double-side adhesive can be applied for suitable assembly requirements.

Open Cell NBR/PVC Foam for Acoustic Applications

Open-cell foam is commonly selected for acoustic applications because interconnected cells allow sound waves to enter the material instead of being reflected primarily from the surface.

Within the foam structure, part of the acoustic energy can be dissipated through interaction with the internal cell network. Material thickness, density, cell structure, installation space and the frequency range of the noise all influence the final acoustic performance.

For projects where acoustic absorption is the primary requirement, provide the installation location, available thickness, noise source and relevant acoustic targets so the foam construction can be evaluated.

Open Cell NBR/PVC Foam for Automotive NVH

Automotive interiors contain multiple potential sources of noise and vibration, including trim panels, dashboards, doors, headliners, equipment housings and other contacting components.

Flexible open-cell NBR/PVC foam can be considered for selected automotive NVH components where sound absorption, cushioning, vibration isolation or anti-rattle performance is required.

Foam strips, pads and custom die-cut parts can be produced according to installation geometry. Required density and thickness depend on the available space, compression and acoustic requirements.

Open Cell NBR/PVC Foam for HVAC Acoustic Control

HVAC systems can generate airborne and structure-borne noise from fans, ducts, equipment housings and mechanical vibration. Open-cell foam can be used in selected acoustic and vibration-control applications where the material is protected and compatible with the system design.

Unlike closed-cell insulation foam, open-cell material should not automatically be selected as the primary vapor-control or condensation barrier. The required cell structure should therefore be matched to the actual HVAC function.

For HVAC projects, specify whether the foam is required primarily for acoustic absorption, vibration isolation, cushioning or thermal insulation before material selection.

Open Cell Foam for Cushioning and Gap Filling

The compressibility of open-cell foam allows it to conform to variable spaces and irregular contact surfaces. This can make it useful for gap filling, panel cushioning, equipment interfaces and anti-rattle applications.

Foam thickness should be selected according to the minimum and maximum gap and the intended compression in the finished assembly. Excessive compression can change cushioning and acoustic behavior.

Open Cell NBR/PVC Foam Roll vs. Closed Cell NBR/PVC Foam

Typical Open Cell NBR/PVC Foam Roll Applications

Why Choose NBR/PVC Foam in Roll Form?

Roll material is useful for manufacturers and foam converters that require continuous lengths for slitting, adhesive lamination, cutting or large-area applications.

Compared with individual sheets, longer rolls can reduce the number of joints during continuous fabrication and simplify feeding through suitable converting equipment.

Topsun's broader NBR/PVC range lists widths from 1000–1800 mm and typical roll lengths of approximately 10 m. Confirm available dimensions for the selected open-cell grade before ordering.

Custom Open Cell NBR/PVC Foam Converting

Continuous foam rolls can be converted into application-specific components according to customer drawings and assembly requirements.

Referenced NBR/PVC Foam Technical Data

The following table is retained from the existing NBR/PVC product information. It should be treated as reference data for the associated NBR/PVC grade. Because the original data does not identify the table as an open-cell-specific datasheet, confirm the technical specification of the selected open-cell roll before applying these values to a project.

NBR/PVC Foam Product Image

How to Select Open Cell NBR/PVC Foam Roll

• Application: automotive NVH, acoustic absorption, HVAC sound control, cushioning or industrial equipment.

• Cell structure: confirm that open-cell construction is required for the intended function.

• Density: specify required density or desired compression behavior where known.

• Thickness: select according to acoustic requirement, available installation space and intended compression.

• Roll width: provide the required width for continuous converting or installation.

• Roll length: specify the required continuous material length.

• Acoustic requirement: provide noise source, installation position and relevant frequency range where available.

• Compression requirement: provide available gap and expected compression for cushioning or anti-rattle parts.

• Adhesive backing: specify plain foam, one-side adhesive or double-side adhesive.

• Finished form: roll, sheet, strip, pad, tape or die-cut component.

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

Topsun Foam Processing Capabilities

Topsun supplies foam materials together with custom converting services for automotive, HVAC, construction, equipment and industrial buyers.

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

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

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

4. Laser Cutting: suitable foam shapes can be processed according to digital drawings.

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

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

7. Engraving: suitable for tool-box inserts, packaging inserts and other custom foam parts.

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

9. Adhesive Backing: adhesive and release liner can be applied for suitable foam tapes, strips, pads and converted parts.

Other Foam Materials Available from Topsun

Topsun supplies NBR/PVC foam, NBR foam, EVA foam, PE foam, XPE foam, IXPE foam, CR foam, EPDM foam, neoprene foam, SBR foam and micro-cell soft PVC foam in sheet, roll and customized converted forms.

About Topsun Foam

Topsun supplies foam materials and custom foam components for automotive, HVAC, construction, electronics, equipment and industrial applications. Customers can provide density, thickness, roll dimensions, drawings and application requirements for evaluation.

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

Open Cell NBR/PVC Foam Roll FAQ

What is open cell NBR/PVC foam?

Open cell NBR/PVC foam is a flexible cellular material made from a nitrile rubber and PVC foam system with interconnected cells. It can be used for selected acoustic absorption, cushioning, vibration damping and gap-filling applications.

What is open cell NBR/PVC foam roll used for?

Typical applications include automotive NVH parts, acoustic absorption, equipment housings, HVAC sound-control components, cushioning pads, gap-filling strips and custom converted foam parts.

Why is open cell foam used for sound absorption?

The interconnected cell network allows airborne sound to enter the foam structure. Part of the acoustic energy can then be dissipated within the material. Actual absorption depends on thickness, density, cell structure, mounting method and sound frequency.

Is open cell NBR/PVC foam suitable for automotive NVH?

Open-cell NBR/PVC foam can be considered for selected automotive acoustic, cushioning, anti-rattle and vibration-control applications. Material construction should be matched to the required vehicle component.

Can open cell NBR/PVC foam be used in HVAC systems?

It can be considered for suitable HVAC acoustic and vibration-control applications. For condensation control and water-vapor resistance, a closed-cell insulation grade is generally the more appropriate structure.

What thicknesses are available?

The current product header lists thicknesses from 1–50 mm. The broader NBR/PVC product information lists 3–50 mm as the main range. Confirm available thickness for the selected open-cell grade.

What roll widths are available?

The existing NBR/PVC product information lists roll widths from 1000–1800 mm and typical roll lengths of approximately 10 m. Confirm the required roll dimensions with the selected foam grade.

What are the tensile strength and elongation?

The current product information lists tensile strength from 160–450 kPa and elongation from 180–250%. Confirm the applicable values for the selected open-cell grade and thickness.

What is the difference between open cell and closed cell NBR/PVC foam?

Open-cell foam has interconnected cells and is generally better suited to acoustic absorption and soft cushioning. Closed-cell foam contains predominantly isolated cells and is more commonly selected for thermal insulation, moisture resistance and environmental sealing.

Can Topsun slit the foam roll into narrow strips?

Topsun provides cutting and slicing capabilities for suitable foam materials. Required strip width, thickness and roll dimensions can be provided for project evaluation.

Can adhesive backing be added to open cell NBR/PVC foam?

Existing product information includes one-side and double-side adhesive options. The bonding substrate and installation environment should be provided when selecting the adhesive construction.

Can open cell NBR/PVC foam be die-cut into custom acoustic parts?

Yes. Suitable foam can be cut or die-cut into pads, strips and custom component shapes according to customer drawings or finished dimensions.

What information should I provide for an acoustic foam project?

Please provide the application, installation location, required thickness, density if known, roll width and length, available installation space, acoustic or vibration requirement, adhesive requirement, finished dimensions and estimated quantity.

How can I request an open cell NBR/PVC foam sample?

Send your requirements to july@topsunfoam.com, including thickness, roll dimensions, application, cell-structure requirement, adhesive option and estimated quantity for evaluation.