Bonded piston seal

How are they used?

Metal cased design

There is a British Standard laid down for the control of synthetic rubbers. BS 3574 (1989) helps to determine shelf life – for instance, Nitrile (NBR) and Polyacrylic (ACM) are Group ‘B’ rubbers and have a 7-year life, whilst Silicone (VMQ) and Fluoroelastomers (Viton®) are Group ‘C’ rubbers and have a 10-year shelf life. PTFE and Leather do not come into this category but like the others should be kept in the original packing for as long as possible away from direct light, dust, and humidity. Ozone, which can also be produced by battery-driven forklift trucks has a very bad effect on synthetic rubbers. Finally, protect the sealing lip – DO NOT hang the seals on nails, wire etc.

Regular inspection and maintenance of right valve cover gaskets, intake valve cover gaskets, head gaskets, and valve cover gaskets are essential to identify signs of wear, damage, or leakage. Proper replacement of worn or damaged gaskets is crucial for maintaining the integrity and performance of the vehicle's systems. Adhering to recommended service intervals and using high-quality replacement components are essential for optimizing the performance and longevity of the vehicle's gaskets.

To prevent thelubricating oil from leaking outside even under high pressure of the oil.

Slowly raise the engine about 11 in. (38 mm) and insert wedges between the mounting rubbers and pads .

Leather 
Recommended for abrasive applications 
Good running properties, due to the impregnated seal lip 
Can be used on shafts which have a surface roughness outside the range for rubber seals 
Not suitable for water