Our materials specialists are able to perform a range of testing services to ensure quality and optimal performance.
Whether in-house testing or field trials, we are able to reproduce ideal and worst-case operating conditions, recording seal integrity, as well as monitoring pressure, speed, temperature, and a number of other performance factors.
Hallite Seals test and development facilities include:
- Friction And Leakage Test Rigs*
- Hydraulic Cylinder Test Rig*
- High Pressure Pulse Test Rig
- Finite Element Analysis*
Analytical testing performed by our laboratory includes:
- Chemical composition
- Tribological
- Rheological
- Mechanical
- Thermal
When required, we also design product test stands.
Our laboratory uses a robust spectrum of plastic and elastomer test methods to ensure that material properties meet specifications. Conducted applicable standards such as ASTM, DIN, ISO, JIS; these tests include:
| Hardness | Durometer testing for control purposes, since no simple relationship exists between hardness and any fundamental physical property. |
| Tensile properties | Physical properties for tensile strength, ultimate elongation and modulus (tensile strength at a given elongation). |
| Thermal properties | Measures the performance of the material in a broad range of temperatures considering transition temperatures, coefficient of thermal expansion, and thermal stability. |
| Deflection temperature | A comparison of the relative behavior of various materials. |
| Compressive properties | Useful in determining specifications for different grades of materials, and in conjunction with other data to determine overall strength. |
| Specific gravity | The ratio of the density of a material to the density of a reference substance, generally water. It is used as a quality assurance measurement to assure lot-to-lot consistency. |
| Tear resistance | A relative measure of a material’s resistance to tear. |
| Compression set | A measure of a material’s retention of elastic properties, particularly useful with squeeze-type seals. |
| Immersion testing | Provides insight regarding the effect of a particular medium on a specific material. |
| Heat aging | Used to determine a material’s deterioration due to dry heat. |
| Adhesion | Primarily a quality control test for coating quality and application. |
*Capable of using high water-based fluids (HFA).
