HyPUR-cel® R2035T
HyPUR-cel® R2035T is a high-resilience open cell polyurethane foam in the HyPUR-cel® R-series with a typical density of 20 pcf (18–24 pcf tolerance) and a 25% Compression Deflection of 35 psi (30–40 psi tolerance) per ASTM D1056. It delivers 56% resilience per ASTM D2632 together with 220 psi tensile strength, 220% elongation and 40 lb./in tear strength. The material operates across a service temperature range of -40°F to 250°F and is engineered for stable energy return, low hysteresis loss and excellent stress relaxation resistance through repeated cyclic compression, making it well suited for firm dynamic seals, bumpers and sporting goods components.
Key Properties
- Compression Deflection 25%: 35 psi (Tolerance: 30–40 psi) | ASTM D1056
- Tensile Strength: 220 psi | ASTM D3574
- Elongation: 220% | ASTM D3574
- Compression Set 50%: 1.5% typical, 3% max | ASTM D1056
- Density: 20 pcf typical (Tolerance: 18–24 pcf) | 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 | 20 pcf (Tolerance: 18–24 pcf) | ASTM D3574 |
| Compression Deflection 25% | 35 psi (Tolerance: 30–40 psi) | ASTM D1056 |
| Compression Set 50% | 1.5% (3% max) | ASTM D1056 |
| 25% CFD | 20 psi | ASTM D3574 |
| Tensile Strength | 220 psi | ASTM D3574 |
| Elongation | 220% | ASTM D3574 |
| Tear Strength | 40 lb./in | ASTM D624 |
| Resilience | 56% | ASTM D2632 |
| Service Temperature | -40°F to 250°F | — |
Compliance
- No flammability rating or compliance standards are listed on the manufacturer’s property sheet (issue date 3/19/24). Flame retardant additives are available depending upon volume; contact H-O for application-specific testing.
- Dynamic sealing and gasketing requiring consistent force recovery
- Footwear and sporting goods components requiring durable energy return
- Energy return and vibration isolation pads in industrial equipment
- Repeated-deflection bumpers, stops and anti-fatigue components
- Die-cut resilient spacers and cushions in automotive and electronics assemblies
Common industries: Footwear, Sporting Goods, Automotive, Industrial, Electronics.
HyPUR-cel® R2035T is a firm 20 pcf grade in the HyPUR-cel® R-series, pairing a 25% Compression Deflection of 35 psi with 56% resilience per ASTM D2632. The R-series is engineered with an elastomeric cell structure rather than relying on pneumatic rebound, so it maintains cellular and dimensional integrity through more than one million cycles at 50% compression.
R2035T combines that energy return with 220 psi tensile strength, 40 lb./in tear strength and 220% elongation, giving it the toughness for high-load dynamic sealing, footwear and sporting goods components, and repeated-deflection bumpers and stops. A compression set of 1.5% per ASTM D1056, excellent stress relaxation resistance and low hysteresis loss keep contact pressure and rebound consistent over the product’s service life. The foam accepts adhesives, laminated fabrics, films, custom coatings and composites.
What differentiates R2035T from R2015T and R2224T within the HyPUR-cel® R-series?
R2035T is the firmest of the 20 to 22 pcf "T" grades at 35 psi Compression Deflection, compared with 15 psi for R2015T and 24 psi for R2224T, and it carries the highest tensile (220 psi) and tear strength (40 lb./in) of the three. All three deliver 56–58% resilience.
Why is resilience important for R2035T in dynamic applications?
Resilience measures how efficiently a foam returns energy after deflection. R2035T achieves 56% resilience per ASTM D2632, and because the R-series uses an elastomeric cell structure rather than pneumatic rebound, it holds that response through repeated cyclic compression (1M+ cycles at 50% compression). That translates to consistent force recovery in sealing, footwear, sporting goods and bumper applications.
What is the service temperature range for R2035T?
R2035T is rated for continuous service from -40°F to 250°F as listed on the Rubberlite property sheet.
Is R2035T rated for flammability or other compliance standards?
No flammability rating or compliance standards are listed on the manufacturer's current property sheet for R2035T. Flame retardant and anti-microbial additives are available depending upon volume, and H-O can arrange application-specific testing.
How should R2035T be specified?
Specify grade (R2035T), thickness, dimensional tolerances, and finished format (roll, sheet or die-cut part), plus any adhesive, film or fabric lamination.
