It is a polyester urethane based viscous sealant blended with a solvent. The product is a non-setting sealant, it doesn't harden, even at 250oC.
It has a unique curtaining action. As flanges sealed with Marston are pulled apart, the material stretches, and then breaks cohesively, leaving sealant on both sides. When the flanges return together, the putty reseals, a self-healing mechanism. This makes Marston a particularly effective sealant on close fitting large flanges which are subject to extreme vibration, distorition, or joint movement, because while the seal may break for a microsecond, it reseals and the fluids remain contained.
Chemical Resistance Properties
Marston is resistant to a wide range of fluids, including all industrial fuels, oils, water and brine, air, turbine and piston engine combustion products, water, water/glycol and methanol mixtures, petroleum and synthetic diester lubricating oils, gasoline, lubricating oils, gasoline, kerosene fluids, and most fluorocarbon refrigerants. Marston can be used to seal joint faces or threaded parts. It is effective for sealing metal to metal joints in the presence of oils and high temperatures.
Marston is designed for industrial sealing applications. The application areas include:
Turbine pedestal bearing parting planes in thermal, gas and nuclear power stations
Oil joints in turbines
Engines
High temperature gear box flanges
As a gasket dressing product on pre-formed gaskets for better sealing in the presence of oils and fuels.
Diesel engines cylinder head gasket, inlet manifolds, oil sumps, etc
Thread sealing applications in drain plugs, etc.
Engines
High temperature gear box flanges
As a gasket dressing product on pre-formed gaskets for better sealing in the presence of oils and fuels.
Diesel engines cylinder head gasket, inlet manifolds, oil sumps, etc
Thread sealing applications in drain plugs, etc.
Advantages of using Marston as a sealing product
Can be used as an aid to sealing with other compression gaskets.
Allows easier dismantling as components are not bonded together.
High temperature range of 250-300 deg c compared to others for gasketing applications.
Excellent thermal, mechanical and chemical resistance.
Completely resistant to oil, fuels, gases, water, air, antifreeze and many others.
Non-hardening - hence handles vibrations and lateral movements better.
Seals all asperities in metal-to- metal joints with one easy application.
Unlimited assembly time after application.
Excellent thermal, mechanical and chemical resistance.
Completely resistant to oil, fuels, gases, water, air, antifreeze and many others.
Non-hardening - hence handles vibrations and lateral movements better.
Seals all asperities in metal-to- metal joints with one easy application.
Unlimited assembly time after application.
Marston is approved by all leading companies in the field of aviation, power generation, engine manufacturing, gear construction, etc. OEMS include Renk, Reinz, Rolls Royce, Thyssen, Deutz, MAN, Massey- Fergusson, Mercedes, Toyota, Shell, Texaco, AEG, Bosch, Siemens, Varta, Phillips, Caterpillar, Demag, Dynamit Nobel, SKF, Perkins, BASF, Bayer, Hapag Lloyd and many more machine, gear, seals and aircraft manufacturers.
Listed with Nato and German Federal Armed Forces, as well as many nuclear, gas and thermal power stations.
Available with:
Project Sales Corp
28 Founta Plaza
Suryabagh
Visakhapatnam
530020 AP
India
Call 0891 2564393
Fax 0891 2590482
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