Explore Our Military-Grade Polyurethane Products & Materials
We manufacture custom molded polyurethane parts, rugged polyurethane sheets, and bond polyurethane parts to metal for the military. Our bonding process is designed for reliable performance in extreme applications to extend the life cycle of metallic and plastic parts. Our custom engineered military grade urethane components are utilized in a vast array of applications.
Military grade polyurethane products manufactured by PSI Urethanes can be certified to Military Specification MIL-DTL-83397B, as outlined by the Standardization Program put fourth by the Department of Defense.
Military applications demand materials that are capable of withstanding a wide range of severe conditions and extreme environments for extended measures of time. Durability, high performance, and reliability are of the utmost importance. Polyurethane products have been the optimum choice for the military, due to strict guidelines and requirements. Consistently providing high-quality polyurethane products with the use of advanced manufacturing technology is the foundation of PSI Urethanes.
Military Grade Polyurethane Parts
The parts that we engineer and manufacture for military applications include but are not limited to:
| • Sheets | • Couplings | • Rods |
| • Bumpers | • Shock Absorbers | • Bushings |
| • Rings | • Liners | |
| • Gaskets | • Tubes |
And many more. In addition, we also have the capability to produce flame-retardant urethanes and static dissipative urethanes should your project benefit from those properties.
DSP Grade Material Properties and Requirements
The table below summarizes some of the physical property requirements for parts made from castable, general-purpose polyurethane material. This data was pulled from the Defense Standardization Program (DSP) MIL-DTL-83397B document. To access this spec sheet in its entirety, please visit the ASSIST QuickSearch database.
| Properties | Class 1 - 80 Hardness | Class 2 - 90 Hardness |
| Specific gravity * | As Determined | As Determined |
| Tensile strength, psi (MPa), min. | 4000 (27.58) | 4500 (31.03) |
| Elongation, %, min. | 400 | 300 |
| Hardness, Durometer “A”, points | 80 ± 5 | 90 ± 5 |
| Tear strength, psi (MPa), min | 80 ± 5 | 90 ± 5 |
| Temperature retraction (TR-10) °F (°C), max. | -45 (-42.8) | -20 (-28.9) |
Additional Class 1 and 2 Properties
The following properties apply to both Class 1 and Class 2 polyurethane material.
After aging 22 ± .25 hours at 158° ± 2°F (70° ±1°C)s
- Compression set, % max: 35
After aging 7 days at 212° ± 2°F (100° ± 1°C)
- Tensile strength change, %: ± 20
- Elongation change, %: ± 20 for 180 Hardness and ± 30 for 290 Hardness
- Hardness change, Durometer “A”, points: ± 5
After aging 120 days at 160° ± 2°F (71° ± 1°C) and 95% Relative Humidity
- Tensile strength change, %: ± 25
- Elongation change, %: ± 20
- Hardness change, Durometer “A”, points: ± 10
After aging 4 days at 180° ± 2°F (82° ± 1°C) over water (short term test)
- Tensile strength change, %: ± 20
Ultraviolet resistance
- Tensile strength change, %: ± 20
- Elongation change, %: ± 20
*The permissible variation in specific gravity during actual production from that value established in production tests shall be ± .02.
Explore Other Industries
Our products are not just limited to military applications. Our adherence to the standards set by the DoD and DSP are an excellent example of our capabilities to meet the most exacting parameters as set by regulatory bodies or by our customers. We produce the highest quality custom cast polyurethane parts, offer a wide variety of polyurethane products, and can also create prototypes from your drawings or sketches. Explore some of the other industries that we serve:
1 /
Food Processing
PSI manufactures FDA approved urethane products for food processing applications.…
2 /
Metal Forming
PSI Urethanes is a leading manufacturer of cast urethane for metal forming press…
3 /
Military
We manufacture custom molded parts, polyurethane sheets, and bond to metal for the…
4 /
Die Cutting
Our quality and accuracy in keeping close tolerances make our company sought out…
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Fluid Cell Remold
For industries that depend on highly complex parts to keep their equipment functioning,…
6 /
OEM's
Original Equipment Manufacturers (OEMs) utilize PSI Urethanes’ manufacturing expertise…
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Marine
PSI Urethanes is a leading manufacturer of cast and molded urethane for the marine…
8 /
Process Automation
From rollers and bumpers to assembly systems and material handling, urethane is a…
9 /
Automotive
PSI Urethanes is a leading manufacturer of cast and molded urethane for the automotive…
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