Natural Rubber
Solid natural rubber is the material of choice when high resilience, superior tensile strength, and dynamic flex fatigue resistance are required in industrial gasketing, conveyor applications, or blast-mitigation assemblies where synthetic elastomers under-perform. Its polyisoprene chemistry delivers exceptional elastic recovery and abrasion resistance across commercial, FDA food-contact, and specialized blast-resistant formulations. H-O Products carries solid natural rubber from standard commercial and FDA industrial grades through impact-absorbing Blast® natural rubber variants, and converts them to customer specification.
40 Durometer Natural Rubber Sheet
40 Durometer Natural Rubber Sheet is a soft-durometer polyisoprene elastomer sheeting compound offering a service temperature range of -70 to +180°F and elongation of 500% to 900%. Natural rubber delivers superior resilience, tensile strength, and excellent adhesion to fabrics and metals — performance characteristics that make it the material of choice for dynamic applications requiring energy absorption, abrasion resistance, and flex-crack resistance. At 40 Shore A, this grade provides maximum conformability within the Natural Rubber Sheet line and is well suited for low-load sealing, cushioning, and vibration isolation applications.
Key Properties
- Hardness, Shore A: 40 ± 5 (ASTM D2240)
- Elongation: 500–900%
- Service Temperature Range: -70 to +180°F
- ASTM D2000 / SAE J200 Classification: AA
- ASTM D-1418 Designation: NR
- Recommended Shelf Life: 3 years
50 Durometer Natural Rubber Sheet
Short Description
50 Durometer Natural Rubber Sheet is a medium-soft polyisoprene elastomer sheeting compound offering a service temperature range of -70 to +180°F and elongation of 500% to 900%. Natural rubber delivers superior resilience, tensile strength, and excellent adhesion to fabrics and metals — performance characteristics that make it the material of choice for dynamic applications requiring energy absorption, abrasion resistance, and flex-crack resistance. At 50 Shore A, this grade balances conformability with moderate compression resistance for a broad range of gasket, cushioning, and vibration isolation applications.Key Properties
- Hardness, Shore A: 50 ± 5 (ASTM D2240)
- Elongation: 500–900%
- Service Temperature Range: -70 to +180°F
- ASTM D2000 / SAE J200 Classification: AA
- ASTM D-1418 Designation: NR
- Recommended Shelf Life: 3 years
60 Durometer Natural Rubber Sheet
60 Durometer Natural Rubber Sheet is a medium-durometer polyisoprene elastomer sheeting compound offering a service temperature range of -70 to +180°F and elongation of 500% to 900%. Natural rubber delivers superior resilience, tensile strength, and excellent adhesion to fabrics and metals — performance characteristics that make it the material of choice for dynamic applications requiring energy absorption, abrasion resistance, and flex-crack resistance. At 60 Shore A, this grade is the mid-range hardness selection in the Natural Rubber Sheet line, suited for general industrial gasket, mount, and sealing applications requiring a well-rounded natural rubber profile.
Key Properties
- Hardness, Shore A: 60 ± 5 (ASTM D2240)
- Elongation: 500–900%
- Service Temperature Range: -70 to +180°F
- ASTM D2000 / SAE J200 Classification: AA
- ASTM D-1418 Designation: NR
- Recommended Shelf Life: 3 years
70 Durometer Natural Rubber Sheet
70 Durometer Natural Rubber Sheet is a firm-durometer polyisoprene elastomer sheeting compound offering a service temperature range of -70 to +180°F and elongation of 500% to 900%. Natural rubber delivers superior resilience, tensile strength, and excellent adhesion to fabrics and metals — performance characteristics that make it the material of choice for dynamic applications requiring energy absorption, abrasion resistance, and flex-crack resistance. At 70 Shore A, this grade provides the highest compression resistance in the Natural Rubber Sheet line and is suited for high-load sealing, heavy-duty vibration isolation, and abrasion-resistant applications.
Key Properties
- Hardness, Shore A: 70 ± 5 (ASTM D2240)
- Elongation: 500–900%
- Service Temperature Range: -70 to +180°F
- ASTM D2000 / SAE J200 Classification: AA
- ASTM D-1418 Designation: NR
- Recommended Shelf Life: 3 years
40 Durometer FDA Grade Industrial Natural Rubber
40 Durometer FDA Grade Industrial Natural Rubber is a 40 Shore A natural rubber elastomer with a smooth beige finish, formulated as an odorless, tasteless, and non-toxic rubber product with natural resistance to bacterial growth. It delivers 2000 psi min. tensile strength — the highest of any FDA rubber grade in this series — and 400% psi min. ultimate elongation with a compression set of 50% max. (22 hours @ 158°F). The material passes FDA 21 CFR 177.2600 and is rated ASTM D2000: 2AA420A13F17, with service from -20°F to 180°F.
Key Properties
- Durometer / Hardness (Shore A): 40 — ASTM D2240
- Tensile Strength: 2000 psi min. — ASTM D412
- Ultimate Elongation: 400% psi min. — ASTM D412
- Compression Set, 22 Hours @ 158°F: 50% max — ASTM D395B
- Specific Gravity: 1.14 gr/cc — —
Blast® 139 Natural Rubber
Blast® 139 Natural Rubber is a 40 Shore A natural rubber sheeting with high tear resistance and self-healing qualities, designed for positioning between targets and bullet traps or on the walls of shooting ranges. It delivers 2000 min. psi tensile strength and 400% min. elongation with a compression set of 50% max. (22 hours @ 158°F). The material is rated for service from -20°F to 180°F and is available in four colors.
Key Properties
- Durometer / Hardness (Shore A): 40 — ASTM D2240
- Tensile Strength: 2000 min. psi — ASTM D412
- Elongation: 400% min. — ASTM D412
- Compression Set, 22 Hours @ 158°F: 50% max. — ASTM D395B
- Specific Gravity: 1.14 gr/cc — —
- Temperature Range: -20°F to 180°F
Blast® 168 Natural Rubber
Atlas Bearing™ 168 is a 60 Shore A Natural Rubber bearing pad designed to evenly transfer load from beams to supports in bridge bearing and structural applications. It delivers 2250 min. psi tensile strength and 400% min. elongation with a compression set of 25% max. (22 hours @ 158°F) — the lowest compression set of any Atlas Bearing™ grade. The material meets AASHTO M251-06 and AASHTO LRFD bridge construction specification Section 18.2, and is rated to -40°F cold temperature per ASTM D2137.
Key Properties
- Durometer / Hardness (Shore A): 60 — ASTM D2240
- Tensile Strength: 2250 min. psi — ASTM D412
- Elongation: 400% min. — ASTM D412
- Compression Set, 22 Hours @ 158°F: 25% max. — ASTM D395B
- Specific Gravity: 1.13 g/cc — —
- Cold Temperature: -40°F — ASTM D2137
