English
P350
Topsun
350±50kg/M³
0.5-16mm
Product Description
Topsun P350 closed cell PVC sponge foam is a high-density PVC foam material designed for applications requiring dimensional stability, cushioning, vibration damping, flexible sealing and durable foam components. It is suitable for fuel tank cushions, automotive components, HVAC equipment, industrial gaskets, machinery, appliances and other converted foam parts.
The P350 product has a listed density of 350±50 kg/m³ and is available in thicknesses from 0.5 mm to 16 mm. Its relatively high density and Shore 00 hardness make it suitable for applications where greater support and dimensional stability are required compared with softer PVC foam grades.
Closed cell PVC sponge foam also provides low water absorption, good weather resistance, vibration damping and conformability to curved or irregular surfaces. Topsun can convert the material into sheets, strips, pads, adhesive-backed tapes, gaskets and custom die-cut parts according to drawings, samples or application requirements.
| Item | Product Information |
| Model | P350 |
| Material | Closed Cell PVC Sponge Foam |
| Listed Density | 350±50 kg/m³ |
| Thickness | 0.5–16 mm |
| Typical Forms | Sheets, strips, pads, tapes, gaskets and custom die-cut parts |
| Custom Processing | Cutting, slicing, lamination, adhesive backing, laser cutting, die cutting and other converting |
High-density structure: suitable for applications requiring stronger support and dimensional stability.
Closed-cell construction: provides low water absorption and supports dust- and moisture-resistant applications.
UV and weather resistance: suitable for many indoor and outdoor industrial environments.
Conforms to irregular surfaces: PVC sponge foam can follow curves, corners and uneven assembly surfaces.
Vibration damping: useful as a cushioning interface between fuel tanks, equipment, vehicle components and other assemblies.
Sound attenuation: can help reduce contact-related vibration and noise in assembled components.
Resistance to dilute acids and alkalis: suitable for applicable industrial environments when compatibility is confirmed.
Dimensional stability: useful for pads, supports, gaskets and converted components requiring consistent dimensions.
Custom converting: available with cutting, adhesive backing, lamination, die cutting and other processing options.
The following values are the existing technical data provided for this PVC sponge foam product. Final material suitability should be evaluated according to density, hardness, compression, thickness, environmental exposure and finished application requirements.
| Property | Value |
| Density | 350 kg/m³ |
| Shore 00 Hardness | 80±10° |
| 30% Compression Set | ≤6% |
| Tensile Strength | 1570 kPa |
| Elongation | ≥70% |
| Flammability | UL94 HBF/HF-1/V-0 FMVSS 302 Available in customized grades |
PVC sponge foam is available in different density and hardness grades. Choosing between higher-density and lower-density foam depends on how much support, compression and conformity the finished component requires.
| Comparison | High Density PVC Foam | Lower Density PVC Foam |
| Support | Greater support for pads, cushions and structural interfaces | Softer compression for lighter sealing and conformability |
| Hardness | Generally firmer depending on grade | Generally softer depending on grade |
| Typical Function | Cushioning, support, vibration damping, gaskets and protective pads | Low-force sealing, weather strips and compressible interfaces |
| Typical Applications | Fuel tank cushions, machinery, automotive supports and industrial pads | Windows, doors, HVAC panels and general weather sealing |
High density PVC sponge foam can be used as a cushioning interface around fuel tanks and related assemblies where support, vibration damping and protection against direct contact between components are required.
The required foam thickness and finished shape depend on the mounting structure, available gap, compression conditions and contact area. Pads and strips can be cut or die-cut according to drawings and finished dimensions.
For any application involving direct exposure to fuel or other chemicals, the specific fluid, temperature and exposure conditions should be provided so material compatibility can be evaluated separately.
High density closed cell PVC foam can be used for vehicle cushioning, equipment interfaces, vibration-control pads, body components and other applications requiring a relatively firm foam support.
The supplied technical information also lists customizable UL94 flammability grades and FMVSS 302. Where a specific automotive flame requirement applies, the required grade and supporting documentation should be confirmed before ordering.
PVC sponge foam can be converted into pads, gaskets and strips for HVAC systems, machinery, electrical appliances, equipment enclosures and other industrial assemblies.
Higher-density foam is useful where the component requires dimensional stability and firmer support while maintaining the flexibility of a cellular foam material.
| Application | Typical Function |
| Fuel Tank Cushions | Support, cushioning and vibration isolation between tank and surrounding structures. |
| Automotive Components | Cushioning pads, body components, support strips and vibration-control parts. |
| HVAC Equipment | Equipment pads, panel interfaces, cushioning and gasket components. |
| Door and Window Components | Foam strips and gasket parts for suitable sealing applications. |
| Industrial Machinery | Support pads, vibration damping, equipment protection and interface cushioning. |
| Appliances | Cushioning, vibration-control and custom gasket components. |
| Electronic Equipment | Protective pads, spacers, enclosure interfaces and die-cut foam components. |
| Railway and Marine | Cushioning, vibration damping and suitable industrial gasket applications. |
| Outdoor Equipment | Protective pads, enclosure components and weather-exposed foam parts. |
Topsun can supply high density PVC sponge foam as sheet material or convert it into finished components according to customer drawings, dimensions, samples and assembly requirements.
| Customization | Available Options |
| Thickness | 0.5–16 mm for the current P350 product range. |
| Product Format | Sheets, strips, pads, tapes, gaskets and custom foam components. |
| Cut Size | Custom width, length and finished part dimensions. |
| Adhesive Backing | Pressure-sensitive adhesive and release liner for suitable applications. |
| Lamination | Hot-melt film, flame lamination and pressure-sensitive adhesive lamination. |
| Custom Shape | Laser-cut or die-cut components according to drawings, dimensions or samples. |
| Additional Processing | Compression molding, engraving and silk-screen printing for suitable products. |
High density PVC foam should be selected according to the finished application and expected mechanical load rather than density alone. Providing complete project information helps determine the appropriate foam thickness and converted part design.
Application: identify whether the part is used for fuel tank cushioning, support, vibration damping, gasketing or component protection.
Thickness: confirm the available assembly gap and finished thickness.
Compression: specify the expected compression after installation.
Load and support: provide information about the weight or contact pressure applied to the foam.
Environment: identify UV, moisture, outdoor exposure or chemical contact conditions.
Flammability: specify the required test method or grade where applicable.
Adhesive requirement: specify whether adhesive backing is needed and identify the bonding surface.
Finished dimensions: provide CAD drawings, dimensions or physical samples for custom parts.
Quantity: provide sample, trial and estimated production quantities where available.
Topsun provides foam material supply together with custom converting services for industrial buyers, component manufacturers and distributors.
Cutting: cut foam sheets, blocks and components according to customer dimensions.
Slicing: slice foam material according to required thickness.
Lamination: hot-melt film lamination, flame lamination and pressure-sensitive adhesive lamination.
Laser Cutting: produce suitable custom foam shapes according to digital drawings.
Die Cutting: manufacture repeatable gaskets, pads, supports and other custom components according to customer designs.
Compression Molding: manufacture three-dimensional molded foam and foam composite parts requiring defined geometry.
Engraving: produce tool-box inserts, protective packaging inserts and customized foam components.
Silk-Screen Printing: print logos and patterns on suitable foam surfaces.
Adhesive Backing: laminate adhesive and release liner onto foam to produce self-adhesive pads, strips and parts.
In addition to PVC foam, Topsun supplies 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 in sheet and roll form or converted into customized foam components.
Topsun is a professional supplier of foam materials and customized foam products. We provide foam material supply together with cutting, slicing, lamination, adhesive backing, laser cutting, die cutting and other converting services.
Our factory is located in Changzhou City, Jiangsu Province, China, with convenient access to Shanghai Port. Customers can provide drawings, samples, dimensions and application requirements for product evaluation.
High density closed cell PVC sponge foam is a cellular PVC material designed for applications requiring cushioning, dimensional stability, vibration damping, gasketing and relatively firm foam support. This P350 product is a high-density grade within Topsun's PVC foam range.
The current P350 product information lists a density of 350±50 kg/m³. The existing technical table lists a nominal density value of 350 kg/m³.
The current P350 product range lists thicknesses from 0.5 mm to 16 mm. Finished dimensions can be further processed according to suitable project requirements.
Typical applications include fuel tank cushions, automotive components, HVAC equipment, industrial machinery, support pads, appliances, custom gaskets, electronic equipment and other applications requiring relatively firm cushioning and dimensional stability.
High density PVC foam can provide a flexible cushioning interface between a fuel tank and surrounding structure while helping reduce direct contact and vibration transfer. Thickness and finished dimensions should be selected according to the mounting structure and compression conditions.
Closed cell PVC sponge foam has low water absorption and can be used in many moisture-resistant gasket and cushioning applications. Final sealing performance depends on the selected grade, compression, joint design and installation conditions.
Yes. PVC sponge foam can provide cushioning between assembled components and help reduce vibration transfer. Actual performance depends on density, hardness, thickness, applied load and the structure of the complete assembly.
Higher-density PVC foam generally provides firmer support and is suitable for cushioning, support pads and applications requiring greater dimensional stability. Lower-density grades are generally softer and easier to compress for low-force sealing and irregular gaps.
Yes. Topsun can laminate pressure-sensitive adhesive and release liner onto suitable PVC foam to produce self-adhesive strips, pads, tapes and custom converted components.
Yes. Topsun provides cutting, slicing, lamination, laser cutting and die cutting according to customer drawings, dimensions or physical samples. Custom pads, gaskets, cushions and other foam components can be produced according to project requirements.
The existing technical information lists UL94 HBF/HF-1/V-0 and FMVSS 302 as available in customized grades. If a project requires a specific flame rating, the required test method and product grade should be confirmed before ordering.
Thickness should be selected according to the available installation gap, expected compression, applied load and required cushioning or sealing function. Provide the minimum and maximum gap and finished application details when requesting a recommendation.
Please provide required thickness, finished dimensions, application, expected compression or load, adhesive requirement, environmental conditions, drawing or sample and estimated order quantity.
Topsun supplies EVA foam, PE foam, XPE foam, IXPE foam, CR foam, EPDM foam, neoprene foam, SBR foam, NBR foam and micro-cell soft PVC foam in sheet, roll and customized converted forms.
Send your requirements to july@topsunfoam.com with the required thickness, dimensions, application, load or compression conditions, adhesive requirement and estimated quantity for evaluation.
