Duralac is a highly effective jointing compound which prevents electrolytic corrosion between dissimilar metals typically stainless fitting on an aluminium mast or boom.
Ideal for mast fittings, winches, aerials, batteries, bolts, screws, rivets etc.
Used in the aerospace industry as an essential corrosion inhibiting material wherever dissimilar metals are joined.
For technical details
Duralac has low solubility in water and will not erode
with time, even when subjected to high pressure from
considerable water flow. Duralac enjoys excellent
adhesion properties to most substrates and because
of its tough flexible composition, has very low water
absorption. Duralac has a two year shelf life from the
date of despatch when stored below 20°C. Once a
container is opened, the remaining Duralac will form
Duralac is indispensable for the sealing of joints between
dissimilar metals of all types, including magnesium and
its alloys. Consideration should also be given to galvanic
corrosion of the same metal where the electrolyte varies
in concentration forming a concentration cell. Duralac
has excellent protection properties for metals in contact
with wood, synthetic resin composition, leather, rubber,
fabrics etc. When components of a structure are of
different materials, it is essential the ‘points or faces’ of
contact be treated with Duralac to inhibit corrosion in the
presence of an electrolyte where considerable differences
in potential arise. Components of the same metal in
contact with one another under different stresses will also
benefit from the use of Duralac to inhibit corrosion.
Duralac is supplied ready for use and must not be
thinned. It is best applied by brush. When Duralac is
applied to metal or other surfaces the volatile solvent
evaporates and the compound sets to the touch, but
remains tacky for a considerable period. It is important
that the joint should be closed while Duralac is still tacky
to ensure that it will flow sufficiently under pressure to
close the gaps in the joint. It will harden somewhat if a
thin film is left exposed to the atmosphere for a long
period and this will prevent the making of a close joint.
100 Gms/m2 coverage.
Due to the hazardous nature of the product we cannot ship this overseas.
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