The materials that are under compression that seal two different surfaces are called gaskets. The seal is a result of the compressive forces created by sufficient bold load. Gaskets also work to fill the imperfections on the mating surfaces to be sealed. KRAFAB has been fabricating custom gaskets for OEM applications for over 15 years. We created several types of gaskets from almost all types of sealing materials including rubber gaskets, non-metallic/compressed sheet, metal gaskets, form-in-place gasket, dispensed gaskets, EMI gasket and FIP gasket. Each gasket has a specific purpose and KRAFAB can assist you in choosing the right one for your application.
Rubber gaskets are extremely efficient for sealing water, compressed sheet gaskets are well suited medium to low pressure applications, spiral wound gaskets are well suited for high temperature applications and much more. Before selecting materials for gaskets, it is extremely important to fully understand actual field environments before choosing the correct gasket materials.
Since 1997 KRAFAB has worked with design and manufacturing engineers to supply electrically conductive EMI Form-In Place (FIP) gaskets that are applied at KRAFAB to their housings and enclosures. We also dispense non-conductive FIP gaskets for environmental seals where the gasket does not need to provide EMI shielding properties. We program our equipment from the customer’s CAD files and can rapidly modify the gasket location and profile as needed in the design or prototype stages of product development and launch. We have extensive experience working with a wide variety of enclosure shapes and material surfaces including machined aluminum, die cast aluminum, nickel, gold, electrically conductive plastic and non-conductive plastic.
There are many factors in choosing a suitable material for your application. The factors include what type of application it is being used for, pressure at the gasketed joint, chemical compatibility and the temperature. Temperature is the least important factor when choosing a gasket material. Higher temperatures at the gasketed joint needs to be sealed, the correct material needs to be suitable for the continuous operating temperature threshold. The next factor is the chemical compatibility. There is a large variety of chemical fluids and gases to seal against. KRAFAB offers a wide range of gasket materials with that are more than capable to withstand gases and fluids.
Following the chemical compatibility, a key factor in deciding on what type of gasket material to be used is the pressure at the gasketed joint. The more frequent the pressure or cycling of the fluid the stronger material needs to be used. Pressure and temperature are both intertwined with each other. If both the limits of temperature and pressure are tested, more robust gasketing materials need to be used. All the factors are extremely important to take in to account to ensure you use the proper material for your gasketing needs. KRAFAB has a wide variety of gasket material options to fulfill your requirements. We offer a quick turnaround in prototyping and have more than 15 years of experience with gasket materials. A highly skilled technical expert from KRAFAB is more than willing to assist you. Contact KRAFAB for more information.