Matrix L104 is a very high performance sealing material designed for use in critical applications where outstanding chemical resistance and performance is required. This premium grade of gasket material offers exceptional strength and stability under load while the specialised matrix orientation and premium fillers used in its construction means it resists creep and cold flow.
Matrix L104 is a biaxially orientated PTFE sheet material produced using the HS10 method developed by DuPont™. This creates a unique sheet where both longitudinal and transverse directions are equally as strong. At this point, the sheet exhibits outstanding chemical resistance but, as PTFE has little memory or recovery, would be susceptible to creep and movement under sealing loads.
To eliminate this problem, Matrix L104 is manufactured using a specialised process which allows for the addition of hollow glass microsphere fillers. These are precisely distributed throughout the sheet and greatly increase creep resistance. They also add body and stability to the finished gasket material resulting in a superior balance of surface conformance.
Matrix L104 PTFE Gasket Material is blue in colour and is used for sealing most chemicals (with the exception of molten alkali metals, fluoride gas and hydrogen fluoride). This high quality gasket material is approved for potable water service, complies with FDA regulations.
Matrix L104 has exceptional compression characteristics which has led to its wide spread adoption in sealing glass lined flanges or in other areas where loading problems exist.
Matrix L104 PTFE Gasket Material is available from AG in 1.5mm and 3mm thick sheets as standard (other thicknesses can also be produced upon request). Standard sheet sizes are 1520mm².
In addition to the sheets, AG is able to quickly fabricate standard or custom gaskets from our Matrix L104 material. Gaskets for standard sizes flanges (e.g. ANSI, BS, AS) can be produced using only the relevant flange dimension codes while custom gaskets can be supplied from drawings, sketches, used samples or dimension lists. If an extra-large gasket is required, segmented seals with dovetailed joints can also be arranged.
For more information on the full range of fabrication options available, or to discuss Matrix L104’s suitability for your application, please do not hesitate to contact your local Associated Gaskets branch.
Other Styles of Matrix PTFE Gasket Material
Complementing the Matrix L104 featured on this page AG is pleased to offer both L100 and L110 Matrix gasket materials.
Matrix L100 is tan in colour and is a silica filled PTFE sheet that is used for sealing critical chemical processing applications including all concentrations of sulphuric acid. Compared to the L104, L100 has a higher density and will require higher compression to form a seal. Matrix L110 PTFE Gasket Material is pigment-free, barium sulphate filled, and is typically used for sealing in food, pharmaceutical or other chemical processing environments.