Hard rubber gasket
A hard rubber gasket is usually located between two surfaces and if those surfaces are particularly heavy or something similar, then a hard rubber gasket is necessary, rather than a soft or flexible rubber gasket. The primary purpose of a hard rubber gasket is to serve as a mechanical seal, so that liquids or gases do not leak and thus damage the operation of an industrial machine, home appliance or anything else where a hard rubber gasket is installed. But it can also be used for other things. For example, it can be a barrier between two objects, to protect them from mechanical damage due to friction or the like. In any case, a hard rubber gasket is needed practically everywhere.
Precisely because hard rubber gasket is needed for so many different purposes and is used in all industries, then it is necessary that you can order a custom size and that you choose the material from which it will be made. Although we offer a huge number of different sizes, it is very often the case that you will need some specific ones, and the reason is that size deviations are not allowed in order for everything to work properly and for the hard rubber gasket to perform its functions. So you can send the exact size, like diameter and thickness and you will get exactly what you need.
The same goes for the material from which the hard rubber gasket will be made. The hardness expressed in Shore A hardness scale varies from material to material, but there are also different hardness available for each material, so they often vary from 20 to 90 Shore A. The material is chosen not only for hardness but also for other characteristics. Some rubber materials like silicone better withstand high and low temperatures, while others like Neoprene are ideal for contact with water and weather conditions.
Product specifications
- Product form
- Elastomer gasket between mating sealing faces
- Material options discussed
- Silicone and chloroprene rubber (CR). Choose one formulation for the actual contact and loading conditions.
- Dimensions to confirm
- Sealing outline, thickness, openings and fixing-hole positions.
- Stiffness
- Define the allowable deformation and hardness; a rigid or hard description alone is not a numerical material specification.
- Contact conditions
- Other gases and water: define concentration, temperature and contact time, then check compatibility with the chosen compound.
- Exposure to evaluate
- Heat and cold cycling and outdoor weather. Validate the selected material under the combined conditions.
- Joint assembly
- Specify the flange or groove geometry, bolt arrangement and assembled compression.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
Email us[email protected]