4110 Open Cell Natural Rubber
4110 is a soft, conformable open cell natural rubber foam with an average density of 22 lb/ft³ and a compression deflection of 2–5 psi at 25% — the lowest firmness in the tan open cell natural rubber range. It is rated for service from -20°F to 160°F and exhibits a compression set of 15% at 50% deflection at 158°F. The material is tan, available in thicknesses from 1/16″ to 1/4″, and is characterized by anti-slip, high-friction surface properties and exceptional abrasion resistance.
Key Properties
- Compression Deflection @ 25%: 2–5 psi (ASTM D1056)
- Compression Set @ 50% Deflection @ 158°F: 15% (ASTM D1056)
- Density (Average): 22 lb/ft³ (ASTM D1056)
- Compression Deflection Change After Oven Aging 168 Hours @ 158°F: ±20% (ASTM D1056)
- Temperature Range: -20°F to 160°F
- Abrasion Resistance: Yes
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Polymer | Natural Rubber | — |
| Cell Structure | Open Cell | — |
| Color | Tan | — |
| Density (Average) | 22 lb/ft³ | ASTM D1056 |
| Temperature Range | -20°F to 160°F | — |
| Abrasion Resistance | Yes | — |
Mechanical Properties
| Property | Value | Test Method |
| Compression Deflection @ 25% | 2–5 psi | ASTM D1056 |
| Compression Set @ 50% Deflection @ 158°F | 15% | ASTM D1056 |
Aging Performance
Oven Aging @ 168 Hours @ 158°F
| Property | Value | Test Method |
| Compression Deflection Change After Oven Aging 168 Hours @ 158°F | ±20% | ASTM D1056 |
- Door stops and drawer bumpers requiring soft, conformable impact cushioning
- Impact protection devices where minimum compression resistance and maximum compliance are required
- Anti-slip pads and protective cushioning where high coefficient of friction and tan color are required
- Laminated assemblies combining natural rubber foam with textiles or cork for composite cushioning products
- Light-duty cushioning applications requiring quick compression recovery and low compression set
Common industries: Consumer Products, Furniture, Industrial Manufacturing, Material Handling.
4110 is the softest grade in the tan open cell natural rubber foam range, with an average density of 22 lb/ft³ and a compression deflection of 2–5 psi at 25% per ASTM D1056. Its soft, conformable construction makes it suited for cushion devices requiring impact protection with minimal resistance — applications such as door stops, drawer bumpers, and similar consumer and industrial impact protection uses where a softer foam is preferred over firmer grades. The tan color distinguishes it from the equivalent black-colored 3110 grade.
The material exhibits anti-slip properties and a high coefficient of friction, along with excellent resistance to abrasion and tearing. It can be laminated with a broad range of materials including textiles and cork. Compression set is 15% at 50% deflection at 158°F per ASTM D1056, and compression deflection change after oven aging at 168 hours at 158°F is ±20%. Temperature range is -20°F to 160°F.
No compliance standards are specified on the manufacturer’s TDS for this material.
What differentiates 4110 from the firmer grades in the tan open cell natural rubber range, and from the black 3110?
4110 is the softest grade in the tan range, with a compression deflection of 2–5 psi at 25% and an average density of 22 lb/ft³ — identical in mechanical performance to the black 3110 grade. The primary distinction is color: 4110 is tan, making it suited for applications where a natural or light-colored rubber surface is preferred over black.
Why is compression deflection critical for open cell natural rubber foam selection?
Compression deflection at 25% determines the force required to compress the foam to a given deflection, effectively defining its working firmness. Selecting the correct CFD ensures the foam deflects appropriately under load — too soft risks bottoming out without adequate protection; too firm reduces conformability and impact absorption. 4110's CFD of 2–5 psi positions it as the softest option in the tan range.
What is the service temperature range for 4110?
4110 is rated from -20°F to 160°F.
Is 4110 suitable for regulated environments?
No compliance standards are specified on the manufacturer's TDS for this material.
How should 4110 be specified?
Specify grade (4110 Open Cell Natural Rubber / H-O part number 4110NRUB), thickness (1/16", 1/8", 3/16", or 1/4"), lamination requirements if applicable, dimensional tolerances, and finished format.
