Polyurethane has emerged as one of the most versatile seal material. Apart from its high wear resistance characteristics compared to other materials, it also possesses the elastic qualities of rubber. The flexibility in chemically engineering TPU’s give them a wide range of properties including fluid and moisture resistance, that has led to a wide acceptance of this material. Polyurethane seals deliver excellent performance in high-pressure hydraulic systems with abrasive contamination, high shock loads, and related adverse conditions like temperatures up to 120°C.
Polyester and Polyether grade of PUR are generally used in the seal industry. Polyester grades have superior mechanical properties whereas Polyether grades have better chemical and hydrolytic stability. Special polyurethane materials having good low-temperature behaviors are being designed and used for specific applications.
| Compound No. | Material | Material | Colour | Features | Major Application |
|---|---|---|---|---|---|
| PU01 | PUHP93 | High Performance P.U | Blue | Hydrolysis resistance,low compression set at elevated temperature |
Rod seals , Piston Seals |
| PU02 | PUHP94 | P.U | Cream | Very low compression set at elevated temperature, Excellent mechanicalproperties |
Rod seals , Piston Seals |
| PU05 | PUAB98 | P.U | Blue | Excellent Wear Resistance | Piston Seals, Back-ups |
| PU06 | PUDB65 | P.U | Deep Yelow | High Hardness, High Modulus | Support Rings |
| PU07 | PUDB65 | P.U | Blue | High Hardness, High Modulus | Support Rings |
| PU09 | PUHP94 | High Performance P.U | Black | Very low compression set at elevated temperature, Excellent mechanical properties |
Rod seals, Piston Seals |
| PU11 | PUHP94 | High Performance P.U | Dark Blue | Very low compression set at elevated temperature, Excellent mechanical properties |
Rod seals, Piston Seals |
| PU13 | PUVHP92 | Very High Performance P.U | Cream | Very high temperature resistance, low compression Set |
SpecialApplications rod and buffer seals |
| PU14 | PUVHP93 | Very High Performance P.U | Cream | Very high temperature resistance, ow compression Set |
SpecialApplications rod and buffer seals |
| PU16 | PUHP93 | High Performance P.U | Blue | Hydrolysis resistance, low compression set at elevated temperature |
Wiper Sea DS121 |
| PU18 | PUHP93 | Very High Performance P.U | Cream | Hydrolysis resistance,low compression set at elevated temperature |
Wipers |
| PU19 | PUAB94 | P.U | Blue | Excellent Wear Resistance | Wipers Seal, Dust Seal |
| PU21 | PUAB92 | P.U | Blue | Low Friction, Low Wear Loss | Pneumatic Seals |
| PU22 | PUAB85 | P.U | Yellow / Blue | Low Friction, Low compression set | Pneumatic Seals |
| PU42 | PUHP93 | P.U.(H.P) | Black | Low Frict on, Low Wear Loss | Wipers |
| PU36 | PUHP94 | High Performance P.U | Orange | Excellent Wear resistance. High mechanical Strength, Low Wear Loss |
Rod seals, Piston Seals |
| HY02 | HY55 | Thermoplastic Polyester | Orange | Excellent Wear resistance. High mechanical Strength, Low Wear Loss |
Anti Extrusion rings, Back u rings. |
| HY03 | HY55 | Thermoplastic Polyester | Sky Blue | Excellent Wear resistance. High mechanical Strength, Low Wear Loss |
Rod seals, Piston Seals |
| HY04 | HY55 | Thermoplastic Polyester | Grey | Self Lubricated. High Mechanical Strength | Seal Ring RS117 |
| HY05 | HY55 | Thermoplastic Polyester | Red | Excellent Wear resistance. High mechanical Strength, Low Wear Loss |
Wiper Seal DS110 |
