Darbond® Vacuum Impregnation Porosity Sealant 990702 is two component thermoset sealant. The impregnated parts surface can be cleaned by water. It has better washability than Darbond 290C, and is specially suitable for parts with auxiliaryhole under 2mm. It cures to thermosetting plastic by free radical polyreaction at 88°C.
Two component, low viscosity, penetrability
Cures under 88°C water by heating
more easy for cleaning, specially suitable for impregnating casting parts with blind hole of under 2mm.
Used for sealing leakage of porous aluminum alloy castings for automobile, internal combustion engine etc.
Used for sealing castings and metal parts to prevent leakage of air, water, coolant, oil and other liquids.
Widely used for sealing of automobile power system shell, engine block, cylinder head, intake manifold, engine casing.
Datailed Products of Darbond® Impregnation Sealant
Viscosity GB/T2794-1995 mPa.s
Specific Gravity GB/T3354-1992 g/cm³
Temperature Range °C
Impregnation Porosity sealing
Curing under 90°C water by heating
More easy for cleaning, impregnation Porosity sealing