Best uses

• Duralac Green – anti-corrosion jointing compound should be used in general engineering applications where contact between dissimilar metals cannot be avoided. For example, in vehicle building where aluminium alloy contacts steel.
• For marine application where corrosion is accelerated by brine concentration.
• In close proximity to the sea where a salt laden atmosphere will meet with structures and set up electrolytic cells.
• Between aluminium alloy plates, extrusions and bolts or rivets used in building applications.
• In aerospace where rivets/bolts are secured into aluminium plates.

Application

Duralac Green – anti-corrosion jointing compound 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 Green 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 Green 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 Green to inhibit corrosion.

Duralac Green – anti corrosion jointing compound 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. This will prevent the making of a close joint.