SBR Foam Die Cutting Manufacturer
A durable and compressible material designed for sealing, shock absorption, and precision die-cutting in electronic devices and industrial equipment.
- Consistent compression performance with stable sealing behavior.
- Smooth surface suitable for high-accuracy die-cutting.
- Excellent cushioning for sensitive electronic components.
- Reliable bonding compatibility with common industrial adhesives.
- Clean, low-contamination profile for dust-free assembly lines.
- Strong resistance to aging under heat and humidity.
- Fast production with ODT’s automated die-cutting equipment.
- Specification Tables
- Features
| Item | Value |
|---|---|
| Material | SBR synthetic rubber foam |
| Density | 80–200 kg/m³ |
| Thickness range | 0.3–10 mm |
| Hardness | 5–30 Shore C |
| Color | Black (standard) |
| Compression set | Low / stable |
| Adhesive options | Single-sided / double-sided |
| Feature | Description |
|---|---|
| Flexibility | Excellent rebound and bend resistance |
| Sealability | Reliable dust and air sealing |
| Durability | Withstands long-term pressure and vibration |
| Temperature range | -20°C to 90°C |
| Die-cutting fit | Suitable for complex shapes & tight tolerances |
High-Stability Compression Performance
SBR foam provides a balanced structure that resists permanent deformation, allowing it to maintain sealing force over time. When used in electronic devices, stable compression ensures consistent protection against dust, vibration, and micro-shocks. Engineers value this material because its mechanical response remains predictable even after repeated cycles of pressure, making it ideal for devices that experience constant assembly pressure or minor impacts. This allows the foam to remain effective in tight internal spaces, where energy absorption and shape recovery are critical.
Excellent Die-Cutting Adaptability
The material’s uniform cell structure enables clean, precise cutting during high-speed production. SBR foam can be shaped into rings, pads, strips, gaskets, or custom contours without tearing or edge deformation. When paired with ODT’s CNC-optimized molds and high-accuracy die-cutting machines, tight tolerances can be controlled consistently across large production runs. This ensures that every part fits correctly into narrow electronic device gaps or housing interfaces, reducing rework and improving assembly efficiency.
Reliable Bonding and Surface Compatibility
The smooth, consistent surface allows strong adhesion with industrial tapes, acrylic adhesives, and rubber-based adhesives. This improves long-term bonding between the foam and metal frames, PCB substrates, plastic housings, or optical elements. Surface uniformity is essential in automated assembly lines, where even small inconsistencies can lead to placement errors or lifting during stress tests. Combined with our peel-strength verification process, the bonding reliability meets the high standards required by consumer electronics manufacturers.
Durability Under Heat and Humidity
SBR foam maintains mechanical strength and cushioning stability under elevated temperature and moisture. Environmental tests in constant temperature/humidity chambers confirm that its structure resists hardening, cracking, and deformation. This makes it suitable for devices operating in warm or variable environments, such as smart home devices, automotive interiors, and consumer electronics. Even after long-term aging, the material continues to provide shock absorption and sealing without losing elasticity.
Our Factory Strength
Our Die-Cutting Equipment
ODT operates multiple die-cutting production lines inside a Class-1000 dust-free workshop to ensure material purity and cutting accuracy.
The automatic roll-to-roll laminating machine ensures precise bonding of adhesives onto SBR foam, improving consistency for multilayer structures.
The automatic laminating and waste-removal machine removes excess material in real time, preventing contamination and reducing manual handling.
Our die-cutting machines support both simple and complex shapes, with stable pressure control that allows accurate production of parts with tight dimensional requirements. All processes are performed in a clean environment to prevent dust from entering the foam surface or adhesive layer.
Our Die-Cutting Quality Control
Our quality lab uses advanced inspection tools to maintain accuracy throughout production.
A 2.5D measurement system ensures dimensional accuracy for every sample, checking thickness, cut shape, and tolerance.
A dust particle counter, CCD microscope, and binocular microscope detect surface defects, fiber contamination, and micro-damage.
Environmental instruments such as the constant temperature and humidity chamber, tape retention tester, peel-strength tester, and DC low-resistance tester verify long-term durability, adhesive stability, and electrical safety when needed. These controls ensure that every batch of SBR foam parts maintains consistent performance.
Our Inspection Team
A dedicated inspection team operates inside the Class-1000 dust-free workshop, performing final dimensional checks, surface inspections, and environmental stability reviews before packaging. Their work ensures that every part meets precision requirements and is free from contamination, giving customers zero-defect products that are ready for automated assembly.
Our Mold Management
The mold department designs and builds custom cutting tools using CAD software, CNC machining, and laser processing. Molds are inspected, repaired, and maintained regularly, ensuring stable performance throughout long production cycles. Accurate mold design directly supports high-precision SBR foam parts by minimizing tolerance drift and improving cutting quality for complex shapes.
Our Product Cases
Dust Mesh & Dust Gaskets
These parts protect electronic speaker openings while maintaining airflow and sound clarity. When combined with SBR foam frames, sealing performance increases, preventing dust intrusion around audio modules. Tight die-cutting control ensures consistent fit across smartphones, tablets, and wearable devices.
Camera Foam Gaskets
For smartphone camera modules, SBR foam prevents dust and stray light from entering the lens area. Automatic lamination ensures stable adhesive bonding, while peel-strength testing verifies reliability. Accurate die-cutting supports the tiny gaps around camera housings, improving image quality and reducing rework rates.
PET/PC Sheets with Protective Film
These sheets support screen protection, insulation layers, and structural reinforcement. SBR foam is often paired with them as cushioning or sealing components in multilayer electronic assemblies. Dimensional accuracy and surface cleanliness are verified with CCD microscopes and environmental chambers, ensuring stable performance in mobile devices and industrial applications.
SBR foam has a uniform cell structure and stable mechanical properties, which allow clean edges and accurate shapes during die-cutting. Its compression behavior is predictable, making it suitable for gaskets, pads, and seals that must fit tightly into compact electronics. Because the material does not tear easily, complex designs can be produced in large quantities without variation, improving assembly consistency in automated production lines.
SBR offers better elasticity and compression recovery than many EVA blends, making it more reliable for long-term sealing applications. EVA tends to feel stiffer and may deform permanently under pressure, while SBR maintains its rebound. In cases where a hybrid material is needed, some customers use SBR eva blend foam sheets for balanced performance. The choice depends on sealing requirements, device thickness limits, and environmental durability needs.
Yes, SBR foam performs well in temperatures from -20°C to 90°C. Its structure remains stable under heat and humidity, as confirmed by constant-temperature/humidity testing. This allows the material to function reliably in consumer electronics, automotive interiors, power modules, and small household devices that generate moderate heat during operation.
Most industrial acrylic adhesives bond very well with SBR. For structural support or shock absorption, double-sided tape improves assembly efficiency. In some applications, customers use the material in the form of SBR foam tape to simplify installation. Adhesive performance is validated with peel and retention tests to ensure long-term stability on metal, plastic, or PCB surfaces.
Yes. As an experienced SBR foam die cutting manufacturer, we support custom mold design, prototype sampling, and full-scale production. Our engineering team optimizes thickness, density, adhesive type, and shape based on the customer’s device structure. With Class-1000 cleanrooms and professional QC inspection, every batch meets strict precision and cleanliness standards for electronics manufacturing.