HyPUR-cel® V0542
HyPUR-cel® V0542 is a viscoelastic open cell polyurethane foam with a typical density of 5 pcf and an Indentation Force Deflection (IFD) of 42 lbs at 25% per ASTM D3574. The material delivers very low resilience of 5.5% with 240% elongation and exceptionally low compression set of 0.4% per D1056, operating across a service temperature range of -40°F to 250°F. V0542 is thermoformable and suited for firmer body-contact cushioning and impact protection assemblies where slow force recovery, high shape retention, and conformability are required.
Key Properties
- IFD 25%: 42 lbs (37 – 47 lbs tolerance) per ASTM D3574
- Tensile Strength: 45 psi per ASTM D3574
- Elongation: 240% per ASTM D3574
- Compression Set 50%: 0.4% (3% max) per ASTM D1056
- Density: 5 pcf (4 – 7 pcf tolerance) per ASTM D3574
- Service Temperature: -40°F to 250°F
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- Specifications
- Applications
- General Info
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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% | 42 lbs (37 – 47 lbs tolerance) | ASTM D3574 |
| 25% CFD | 0.71 psi | ASTM D3574 |
| Tensile Strength | 45 psi | ASTM D3574 |
| Elongation | 240% | ASTM D3574 |
| Tear Strength | 8 lb./in | ASTM D624 |
| Compression Set 50% | 0.4% (3% max) | ASTM D1056 |
| Compression Set 50% | 1.5% (5% max) | ASTM D3574 |
| Resilience | 5.5% | 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® V0542 is a firmer-grade viscoelastic open cell polyurethane foam designed for body-contact cushioning and impact protection assemblies that demand higher support without sacrificing slow force recovery. At 42 lbs IFD with very low resilience of 5.5%, V0542 sits above the medium V0533 grade and below the high-firmness V0575, delivering a controlled, contoured feel suited to applications where firmness and shape retention are equally critical.
The foam exhibits 240% elongation for conformable fit over complex geometries and an exceptionally low compression set of 0.4% per ASTM D1056 for long-term dimensional stability. The open cell structure allows air and moisture passage, and V0542 is thermoformable for custom contoured part production while remaining dimensionally stable across a service temperature range of -40°F to 250°F. The material is available with adhesives, laminated films, fabrics, and custom coatings.
What differentiates V0542 from softer and firmer grades in the HyPUR-cel viscoelastic family?
V0542 is a firmer-grade viscoelastic foam with a 42 lb IFD, sitting between the medium V0533 (33 lbs) and the high-firmness V0575 (65 – 85 lbs). It pairs increased support with very low resilience of 5.5% and an exceptionally low compression set of 0.4%, making it the right choice when applications need more structural feel than mid-range grades but still require slow force recovery and contour retention.
Why is compression set critical for viscoelastic cushioning foams?
Compression set determines whether a cushion maintains its original thickness and feel after long-term loading. V0542's 0.4% compression set per ASTM D1056 — one of the lowest values in the HyPUR-cel viscoelastic range — indicates outstanding recovery from sustained compression, which is essential for firmer cushioning components that must hold their shape and continue distributing pressure consistently throughout service life.
What is the service temperature range for V0542?
-40°F to 250°F.
Is V0542 suitable for regulated environments?
No compliance standards are specified on the manufacturer's TDS for V0542. End users requiring flammability, medical, automotive, or other regulatory qualification should request supporting documentation from H-O Products for the specific application.
How should V0542 be specified?
Specify grade (V0542), thickness, compliance requirements, dimensional tolerances, and finished format.
