HyPUR-cel® V0525
HyPUR-cel® V0525 is a viscoelastic open cell polyurethane foam with a typical density of 5 pcf and an Indentation Force Deflection (IFD) of 25 lbs at 25% per ASTM D3574. The material delivers very low resilience of 2% combined with 270% elongation and low compression set, operating across a service temperature range of -40°F to 250°F. V0525 is thermoformable and suited for body-contact cushioning and pressure distribution applications requiring slow force recovery and conformable fit at a slightly firmer profile than V0517.
Key Properties
- IFD 25%: 25 lbs (20 – 30 lbs tolerance) per ASTM D3574
- Tensile Strength: 24 psi per ASTM D3574
- Elongation: 270% per ASTM D3574
- Compression Set 50%: 0.8% (3% max) per ASTM D1056
- Density: 5 pcf (4 – 7 pcf tolerance) per ASTM D3574
- Service Temperature: -40°F to 250°F
We want to help!
Enter your information and we'll get you in touch with our knowledgable staff. We know how important to the right product for your project.
Request a Consultation
- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Density | 5 pcf (4 – 7 pcf tolerance) | ASTM D3574 |
| Service Temperature | -40°F to 250°F | — |
Mechanical Properties
| Property | Value | Test Method |
| IFD 25% | 25 lbs (20 – 30 lbs tolerance) | ASTM D3574 |
| 25% CFD | 0.45 psi | ASTM D3574 |
| Tensile Strength | 24 psi | ASTM D3574 |
| Elongation | 270% | ASTM D3574 |
| Tear Strength | 4.2 lb./in | ASTM D624 |
| Compression Set 50% | 0.8% (3% max) | ASTM D1056 |
| Compression Set 50% | 5% (10% max) | ASTM D3574 |
| Resilience | 2% | ASTM D2632 |
- Body-contact cushioning and pressure management components
- Automotive seating comfort layers and headrests
- Medical device padding and patient positioning aids
- Impact protection and energy absorbing assemblies
- Thermoformed contoured cushion and ergonomic padding
Common industries: automotive, medical, ergonomic seating, protective equipment.
HyPUR-cel® V0525 is a viscoelastic open cell polyurethane foam engineered for body-contact cushioning, pressure distribution, and impact absorption applications that benefit from slow force recovery and conformable fit. Positioned as a slightly firmer alternative to V0517 within the HyPUR-cel viscoelastic family, V0525 combines a 25 lb IFD with very low resilience to produce a contoured, supportive feel that retains shape under sustained load.
The open cell structure allows air and moisture passage for comfort in extended-contact use, while the material’s 270% elongation and low compression set support conformable fit over complex geometries and long-term dimensional stability. V0525 is thermoformable, enabling custom contoured part production, and remains dimensionally stable across a wide service temperature range of -40°F to 250°F. The foam is available with adhesives, laminated films, fabrics, and custom coatings to support a range of finished part constructions.
What differentiates V0525 from softer and firmer grades in the HyPUR-cel viscoelastic family?
V0525 sits at the slightly firmer end of the soft viscoelastic range with a 25 lb IFD, providing more support than V0517 while preserving very low resilience of 2% for slow force recovery and conformable fit. This combination delivers a contoured, pressure-distributing feel without bottoming out under sustained load.
Why is compression set critical for viscoelastic cushioning foams?
Compression set measures how much permanent deformation a foam retains after sustained compression — it is the property that determines whether a cushion holds its shape or flattens out over time. V0525's 0.8% compression set per ASTM D1056 and 5% per ASTM D3574 indicate excellent long-term shape retention, which is essential for body-contact applications where consistent comfort and pressure distribution must be maintained through repeated use.
What is the service temperature range for V0525?
-40°F to 250°F.
Is V0525 suitable for regulated environments?
No compliance standards are specified on the manufacturer's TDS for V0525. End users requiring flammability, medical, automotive, or other regulatory qualification should request supporting documentation from H-O Products for the specific application.
How should V0525 be specified?
Specify grade (V0525), thickness, compliance requirements, dimensional tolerances, and finished format.
