PINPSEALS has been formulating a range of super polymers that will outlast the equipment that they seal. Designated as high performance, extra high performance and ultra-performance ranges, these polymers combine many of the advantag­es of rigid plastics, metals, and ceramics, with the extensibility of rubber.

The super polymers exhibit a range of hardness from  95 Shore A to over 80 shore D,  which is as hard as a golf ball.

What sets this material apart is the great compression properties, which provide greater load-bearing capability than conventional elastomers of equal hardness. In addition to high load-bearing properties in both tension and compression, seals made from these super polymers have a high load-bearing capacity in shear. Even at the high hardness levels, these materials have significantly better resistance than all plastics.

Another important characteristic of these materials is the ability to resist cracking under re­peated flexing. One of these super polymers outlasted the test equipment, which broke under the strain of continuous testing. This incident has helped set the tone for the development of similar hardwearing polymers that are part of the development program at PINPSEALS.

Unlike many elastomers, PINPSEALS super polymers can be used in thin sections because of their strength and toughness. A good number of these super polymers remain flexible at low temperatures and exhibit outstanding resistance to thermal shock. A selection of these materi­als will also work well under continuous operation in temperatures up to 120°C.

For applications where severe wear is a problem, PINPSEALS materials offer outstanding dura­bility when compared with rubber, plastics, and even metals. All seal stock has been formulat­ed based on experience and/or simulated service tests to take advantage of their high abrasion resistance.