Non-MetallicCompressed Non-Asbestos Sheet Gaskets
Many products designed to replace asbestos have seen extensive use since the 1970s; however, choosing a replacement material for compressed asbestos warrants careful consideration. Most manufacturers of non-asbestos sheet gasket materials use synthetic fibers like aramid or Kevlar® in conjunction with an elastomeric binder. The elastomeric binder makes up a larger percentage of this sheet and thereby becomes a more important consideration when determining applications. Kevlar® is a registered trademark of DuPont.
L420
L420 is a general-purpose sheet jointing material with good mechanical properties. It is constructed with aramid/ organic fiber and a high-quality nitrile rubber binder. It is effective for use with mild organic and inorganic acids, diluted alkalis, general chemicals, synthetic oils, and petroleum and petroleum derivatives.
L430
L430 is a general-purpose sheet jointing material with superior mechanical properties. It is constructed with premium aramid fiber and a high-quality nitrile rubber binder. It is effective for use with mild organic and inorganic acids, diluted alkalis, general chemicals, synthetic oils, petroleum and petroleum derivatives.
L433
L433 is a premium sheet gasket material with a reinforcement structure consisting of glass and aramid fibers, bound together with a high-quality nitrile rubber binder. Addition of glass fiber gives L433 excellent steam resistance. It is effective for stronger acids and alkalis, inert gases, general chemicals, oils and fuels, and petroleum and petroleum derivatives.
L441
L441 is a general service sheet gasket material with a wide range of application potential. Manufactured with a formulation of high-quality fillers, premium aramid fibers and nitrile binder, L441 is the workhorse of the Lamons gasket line, featuring excellent sealing ability, good chemical resistance, creep relaxation minimization, and great recovery.
L443
L443 is a premium sheet gasket material with a reinforcement structure consisting of glass and aramid fibers bound together with a high-quality nitrile rubber binder. Addition of glass fiber gives L443 excellent steam resistance. It features excellent sealing ability and high resistance to creep, making it effective for stronger acids and alkalis, inert gases, general chemicals, oils and fuels, and petroleum.
L450
L450 is a premium sheet gasket material utilizing carbon and aramid fibers bound together with a high-quality nitrile rubber binder. L450 is designed to perform at high temperatures and pressures, featuring excellent sealing ability, high resistance to creep, and good steam resistance. Standardization and consolidation of many other gasket materials can be achieved using L450. It is suitable for stronger acids and alkalis, inert gases, general chemicals, oils and fuels.
L460
L460 is a premium sheet gasket material utilizing graphite and aramid fibers bound together with a high-quality nitrile rubber binder. L460 is designed to perform at high temperatures and pressures, featuring excellent sealing ability, high resistance to creep, and good steam resistance. Standardization and consolidation of many other gasket materials can be achieved using L460.It is suitable for stronger acids and alkalis, inert gases, general chemicals, oils and fuels, and petroleum and petroleum derivatives.
L540
L540 is a compressed sheet gasket material utilizing a high-quality Neoprene binder. It is reinforced with aramid and inorganic fibers, and is chemically stable with good mechanical properties. This material has an inherent resistance to oil and petroleum-based solvents, and is an effective choice for water, saturated steam, and refrigerants.
L640W
L640W is a premium compressed sheet gasket material utilizing a high quality SBR binder, reinforced with an engineered blend of aramid and inorganic fibers. It is chemically stable and possesses good mechanical properties, making it an effective choice for water, saturated steam, mild acids and alkalis, and inert gases.
