Cerulean N 03: 90±5 Shore A High-Hardness Oil-Resistant NBR Seals for Industrial Applications
Cerulean N 03 is a copolymer NBR-based elastomer specifically designed to deliver excellent resistance to oils, chemicals, and hydrocarbon solvents. This makes it an ideal choice for industries such as oil and gas, automotive, and manufacturing, where durability and performance in aggressive environments are critical. As part of ISMAT’s range of high-quality industrial seals, Cerulean N 03 is designed to meet the demands of applications requiring exceptional durability and precision. This advanced solution offers the reliability expected from durable sealing products by ISMAT, ensuring long-lasting performance even in challenging environments.
| S.No | Description | ASTM Test Method | Unit | Spec |
|---|---|---|---|---|
| 1 | Hardness | D 2240 | Shore A | 90±5 |
| 2 | Tensile Strength | D 412 | MPa | 14 (Min) |
| 3 | Elongation @ break | D 412 | % | 100 (Min) |
| 4 | Compression Set 22hrs@100°C | D 395 Method B | % | 15 (Max) |
| Compression Set 70hrs@100°C | % | 25 (Max) | ||
| 5 | Operating Temperatures | °C | -40°C to +107°C |
Created by ISMAT, this innovative sealing solution is produced using top-tier materials sourced from globally trusted suppliers. Each product undergoes rigorous in-house testing to ensure it meets the highest standards for performance and reliability.
ISMAT specializes in Ismat sealing technology, offering durable sealing products tailored to meet the unique demands of industries operating in harsh environments. Whether you need seals for extreme temperature and pressure environments or custom-engineered solutions, ISMAT delivers products that enhance equipment performance and longevity.
Learn how to choose the right ISMAT seal for your industry. Explore the best applications for ISMAT’s high-performance seals and discover why they outperform standard seals in critical environments.
To explore how ISMAT’s sealing solutions can address your specific challenges or to learn more about custom-engineered seals for your industry, contact ISMAT today.
ISMAT leverages Cerulean N 03 copolymer Nitrile Butadiene Rubber (NBR) variants to deliver superior high-hardness oil resistance through NBR oil seals, NBR hoses, NBR pump components and NBR cable wire seals for demanding industrial applications. The copolymer NBR elastomer formulation provides 90±5 Shore A hardness, 14 MPa minimum tensile strength, 100% minimum elongation at break, ≤15% compression set (22hrs@100°C), ≤25% compression set (70hrs@100°C), excellent oil/hydrocarbon/chemical resistance and operating temperatures from -40°C to +107°C with exceptional mechanical reliability.
Hardness (Shore A): 90±5
Temp Range: -40°C to 107°C
Higher Resistance to a Wide Range of Oils

Excellent Resistance to Hydrocarbon Solvents
Good Resistance to Chemicals
Automobile
Chemical