MECSEALANT Flange Sealants (MFS)


MECSEALANT® Anaerobic Flange Sealants are special fluids designed to fill small gaps and act as a liquid-based gasket. It creates a rigid and tight gasket between two mating flanges. It improves loading capability, reduces noise and has excellent solvent and chemical resistance. Our flange sealants are available for different flanges based on pressure, temperature and material.

Product Range: MFS 510, 515, 518

Packaging Size: 50mL/tube

MFS Technical Data

Strength Medium StrengthMedium StrengthMedium Strength
Chemical BaseAcrylicAcrylicAcrylic
AppearanceOpaque pasteOpaque pasteGel
ViscosityHighHighHigh, Thixotropic
ApplicationRigid metal flanges, high-temperature resistance, chemical resistanceRigid metal flanges Semi flexible-rigid metal flanges
Materials Metal flanges and engine casingsMetal flanges and engine casingsIron, aluminium, and steel flanged mating surfaces
Key Features·   High temperature resistant of up to 200 °C and chemical resistance anaerobic sealant that cure in the absence of air between close-fitting metal surfaces
·   Instant low-pressure sealing properties
·   Adapts to flange surface irregularities and scratches up to 0.25 mm
·   Perfect seal between machined metal components
·   Form-in-place gasket for power machines; automobile, engineering machine, internal combustion engine, mining machine, pump, etc
·   Medium cure speed
·   Adapts to flange surface irregularities and gaps up to 0.25 mm
·   Provides resistance to low pressures and resists high pressure when fully cure
·   Cures with minor surface contamination
·   Form-in-place gasket on rigid flanged connections, e.g. transmissions and motor housings
·   Adapts to flange surface irregularities and gaps up to 0.25 mm
Viscosity Range (mPa.s) at Room Temperature40,000 - 140,0001,200,000 Thixotropic900000
Specific Gravity (g/cm3)
Maximum Sealing Pressure (kg/cm2)326306306
Maximum Gap Fill (mm)
Maximum Operating Temperature200 °C / 392 °F150 °C / 302 °F150 °C / 302 °F
Full Cure Time24 Hours @ 22 °C (72° F)24 Hours @ 22 °C (72° F)24 Hours @ 22 °C (72° F)
IMPA No-812790812814
Storage Temperature8° C (46°F) – 28°C (82°F)8° C (46°F) – 28°C (82°F)8° C (46°F) – 28°C (82°F)
Shelf Life24 Months24 Months24 Months

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