HyPUR-cel® S1203
HyPUR-cel® S1203 is an open cell polyurethane foam with a typical density of 12 pcf (10–14 pcf tolerance) and a 25% Compression Deflection of 3 psi per ASTM D1056. The material operates across an extended service temperature range of -67°F to 250°F and exhibits exceptional elongation of 365% combined with strong tensile strength of 110 psi and low compression set. S1203 is thermoformable and well suited for applications requiring a higher-density, highly conformable foam with excellent stretch and shape retention across a broad temperature range.
Key Properties
- Compression Deflection 25%: 3 psi (Tolerance: 2–6 psi) | ASTM D1056
- Tensile Strength: 110 psi | ASTM D3574
- Elongation: 365% | ASTM D3574
- Compression Set 50%: 2.2% (5% max) | ASTM D1056
- Density: 12 pcf (Tolerance: 10–14 pcf) | ASTM D3574
- Service Temperature: -67°F to 250°F
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- Specifications
- Applications
- General Info
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Physical Properties
| Property | Value | Tolerance | Test Method |
| Density | 12 pcf | 10 – 14 pcf | ASTM D3574 |
| Compression Deflection 25% | 3 psi | 2 – 6 psi | ASTM D1056 |
| Compression Set 50% | 2.2% | 5% max | ASTM D1056 |
| 25% CFD | 5 psi | N/A | ASTM D3574 |
| Tensile Strength | 110 psi | N/A | ASTM D3574 |
| Elongation | 365% | N/A | ASTM D3574 |
| Tear Strength | 19.6 lb./in | N/A | ASTM D624 |
| Resilience | 28% | N/A | ASTM D2632 |
| Service Temperature | -67°F to 250°F | — | — |
- Low-force gasketing and conformable sealing
- Thermoformed padding and contoured cushioning components
- Automotive interior soft-touch and acoustic applications
- Medical device padding and body-contact cushioning
- Cryogenic and low-temperature sealing applications
Common industries: Automotive, Medical, Cryogenic, Aerospace, Industrial.
HyPUR-cel® S1203 is a high-density open cell polyurethane foam in the HyPUR-cel® S-series, combining a 12 pcf density with a soft 3 psi Compression Deflection and the highest elongation value in the series at 365%. It is designed for applications where elevated density and structural integrity must coexist with exceptional conformability and thermoformability — such as high-performance body-contact cushioning, complex-geometry sealing, and premium thermoformed composite components.
The foam achieves 365% elongation per ASTM D3574 and tensile strength of 110 psi, enabling it to stretch over intricate geometries without tearing while maintaining shape after release. Compression set of 2.2% per ASTM D1056 supports long-term seal and shape retention. Tear strength of 19.6 lb./in confirms robust handling performance. The extended service temperature of -67°F to 250°F makes it suitable for cryogenic applications. The material accepts laminations, fabrics, films, and custom coatings.
What differentiates S1203 from S1005 and lower-density S-series grades within the HyPUR-cel® S-series?
S1203 is the highest-density single-value grade in the standard S-series at 12 pcf, yet delivers a soft 3 psi Compression Deflection with 365% elongation — the highest elongation in the series. Compared to S1005 at 10 pcf / 5 psi / 305% elongation, S1203 provides greater density and stretch while maintaining a softer compression profile, suited for premium cushioning and complex thermoformed applications.
Why is thermoformability important for S-series foam applications?
Thermoformability allows the foam to be heat-shaped into contoured or three-dimensional configurations without adhesive lamination or complex tooling. This is particularly valuable in body-contact cushioning, automotive soft-touch components, and conformable sealing assemblies where a flat sheet cannot achieve the required geometry. S1203 is thermoformable as stated on the TDS.
What is the service temperature range for S1203?
S1203 is rated for continuous service from -67°F to 250°F as listed on the TDS. The lower limit of -67°F distinguishes the S-series from standard I-series grades and makes it suitable for cryogenic and low-temperature environments.
Is S1203 suitable for regulated or compliance-rated environments?
No compliance standards are listed on the manufacturer's TDS for S1203. Suitability for regulated environments should be confirmed through independent testing.
How should S1203 be specified?
Specify grade (S1203), thickness, dimensional tolerances, and finished format.
