HyPUR-cel® I3050L
HyPUR-cel® I3050L is a low-resiliency, energy-absorbing open cell polyurethane foam with a typical density of 30 pcf (26–34 pcf tolerance) and a 25% Compression Deflection of 50 psi (40–60 psi tolerance) per ASTM D1056. The “L” designation identifies a formulation with 16% resilience per ASTM D2632 that dissipates impact and vibration energy with fast recovery and low hysteresis loss. The material operates across a service temperature range of -40°F to 250°F and combines 270 psi tensile strength, 145% elongation and 28 lb./in tear strength with an exceptionally low compression set of 0.5% per ASTM D1056. Properties are published by Rubberlite as provisional typical values.
Key Properties
- Compression Deflection 25%: 50 psi (Tolerance: 40–60 psi) | ASTM D1056
- Tensile Strength: 270 psi | ASTM D3574
- Elongation: 145% | ASTM D3574
- Compression Set 50%: 1% typical, 5% max | ASTM D3574
- Density: 30 pcf typical (Tolerance: 26–34 pcf) | 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 | 30 pcf (Tolerance: 26–34 pcf) | ASTM D3574 |
| Compression Deflection 25% | 50 psi (Tolerance: 40–60 psi) | ASTM D1056 |
| Compression Set 50% | 0.5% (3% max) | ASTM D1056 |
| Compression Set 50% | 1% (5% max) | ASTM D3574 |
| Tensile Strength | 270 psi | ASTM D3574 |
| Elongation | 145% | ASTM D3574 |
| Tear Strength | 28 lb./in | ASTM D624 |
| Resilience | 16% | ASTM D2632 |
| Service Temperature | -40°F to 250°F | — |
Compliance
- No flammability rating or compliance standards are listed on the manufacturer’s provisional property sheet (issue date 11/6/24). Flame retardant additives are available depending upon volume; contact H-O for application-specific testing.
- Industrial gasketing and sealing under high compressive loads
- Energy-absorbing pads and impact protection in industrial equipment
- Vibration damping and anti-rattle components under heavy loads
- Protective packaging for heavy or sensitive components
- Construction, transportation and industrial cushioning pads
Common industries: Industrial, Transportation, Construction, Electronics, Medical.
HyPUR-cel® I3050L is one of the two 30 pcf grades at the top of the HyPUR-cel® I-series, pairing the highest density in the series with a 25% Compression Deflection of 50 psi. It is designed for firm, supportive pads and high-load gasketing that must absorb energy rather than return it: resilience is 16% per ASTM D2632, giving fast recovery with low hysteresis loss.
Compression set is exceptionally low at 0.5% per ASTM D1056 and 1% per ASTM D3574, and the foam retains the excellent high-temperature compression set, superb compression fatigue properties and dimensional stability of the series. Tensile strength of 270 psi, 145% elongation and 28 lb./in tear strength support demanding die-cutting and lamination, and the material accepts adhesives, fabrics, films and custom coatings.
Rubberlite publishes I3050L as provisional typical properties (issue date 11/6/24). No flammability rating or compliance standards are listed on the current sheet; contact H-O for the latest data or application-specific testing.
What differentiates I3050L from I3065L and I2560 within the HyPUR-cel® I-series?
I3050L and I3065L share the 30 pcf density and low-resiliency "L" formulation; I3050L is the softer of the two at 50 psi Compression Deflection versus 65 psi. I2560 delivers 60 psi at 25 pcf with standard (26%) resilience. I3050L is specified when the highest density is needed with moderate-high firmness and energy absorption.
What does the "L" in I3050L mean?
Per Rubberlite's naming convention, the first two digits are density (30 pcf) and the last two are 25% compression deflection (50 psi). The "L" identifies a low-resiliency, energy-absorbing product: I3050L has 16% resilience per ASTM D2632, so it dissipates impact and vibration energy with fast recovery and low hysteresis loss rather than rebounding like a standard I-series grade.
What is the service temperature range for I3050L?
I3050L is rated for continuous service from -40°F to 250°F as listed on the Rubberlite property sheet.
Is I3050L rated for flammability or other compliance standards?
No flammability rating or compliance standards are listed on the manufacturer's current property sheet for I3050L. Flame retardant and anti-microbial additives are available depending upon volume, and H-O can arrange application-specific testing.
How should I3050L be specified?
Specify grade (I3050L), thickness, dimensional tolerances, and finished format (roll, sheet or die-cut part), plus any adhesive, film or fabric lamination.
