3130 Open Cell Natural Rubber
3130 is a medium firm open cell natural rubber foam with an average density of 30 lb/ft³ and a compression deflection of 10–16 psi at 25%. 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 black, available in thicknesses from 1/16″ to 1/4″, and features anti-slip, high-friction surface properties and exceptional abrasion resistance.
Key Properties
- Compression Deflection @ 25%: 10–16 psi (ASTM D1056)
- Compression Set @ 50% Deflection @ 158°F: 15% (ASTM D1056)
- Density (Average): 30 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 | Black | — |
| Density (Average) | 30 lb/ft³ | ASTM D1056 |
| Temperature Range | -20°F to 160°F | — |
| Abrasion Resistance | Yes | — |
Mechanical Properties
| Property | Value | Test Method |
| Compression Deflection @ 25% | 10–16 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 |
- Window setting blocks and glass rack base pads requiring firm, resilient cushioning with high friction
- Protective pads and isolation pads for surface protection and load distribution in glazing applications
- Shock absorption and vibration damping in glass carts and material handling equipment
- Disparate metals isolation and insulation to prevent galvanic corrosion and surface damage
- Adhesive bonding applications requiring a firm, anti-slip natural rubber substrate
Common industries: Glazing and Glass, Construction, Material Handling, Industrial Manufacturing.
3130 is the upper-medium firmness grade in the open cell natural rubber foam range, with an average density of 30 lb/ft³ and a compression deflection of 10–16 psi at 25% per ASTM D1056. It is designed for cushioning applications where a firm foam is required — providing greater load-bearing resistance than the 3110 and 3120 grades while remaining softer than the 3140 and 3150 grades. The material is well suited for adhesive applications, window setting blocks, protective pads, and isolation pads.
The material exhibits anti-slip properties and a high coefficient of friction alongside excellent resistance to abrasion and tearing, and is compatible with lamination to textiles and cork. It is also noted on the TDS as suitable for glass carts, glass racks, shock absorption, vibration damping, and disparate metals isolation and insulation. 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.
What differentiates 3130 from 3120 and 3140 in the open cell natural rubber range?
3130 sits between the lower-medium 3120 (5–10 psi CFD, 26 lb/ft³) and the firm 3140 (16–22 psi CFD, 33 lb/ft³). At 10–16 psi CFD and 30 lb/ft³ average density, it provides a firm cushioning response suited for window setting blocks, isolation pads, and shock absorption applications where the softer grades would deflect excessively under load.
Why is compression deflection critical for open cell natural rubber foam selection?
Compression deflection at 25% determines how much force is required to compress the foam by a given amount — effectively the working firmness of the material under load. For setting blocks, isolation pads, and vibration damping applications, selecting the correct CFD ensures the foam carries the expected load without excessive deflection or bottoming out. 3130's CFD of 10–16 psi positions it for firm, load-bearing cushioning duties.
What is the service temperature range for 3130?
3130 is rated from -20°F to 160°F.
Is 3130 suitable for regulated environments?
No compliance standards are specified on the manufacturer's TDS for this material.
How should 3130 be specified?
Specify grade (3130 Open Cell Natural Rubber / H-O part number 3130NRUB), thickness (1/16", 1/8", 3/16", or 1/4"), lamination requirements if applicable, dimensional tolerances, and finished format.
