Description
Metalink® 781 Aluminum
99% Pure aluminum wire fortified with slight amount of copper. Meets 1100 specifications with excellent corrosion resistance, electrical conductivity and machineability. Widely used for atmospheric and immersion corrosion applications especially under insulation. Available for combustion or twin wire arc use.
Applications
• Electrical Conductivity
• High Temperature Corrosion
• Aluminum Pattern Restoration
• Aluminum Casting Repair
• Decorative Purposes
Surface Preparation Information
Surface should be clean, white metal,with no oxides (rust), dirt, grease, or oilon the surface to be coated. Note: It is best not to handle surfaces after cleaning. Recommended method of preparation is, to grit blast with 24 mesh aluminum oxide, rough grind, or rough machine in a lathe.
Recommended Spray Parameters
For use in a Diablo Twin Wire Arc System: 50 to 60psi Air Pressure, 27 to 29 volts, 200amps, 4 to 7″ standoff is a good starting point, but may be adjusted upwards for maximum deposition. Other settings may be required for alternate equipment.
Parameters Through Metalink 12M or 14M: 44 oxy, 39 act, 52 air, (as indicated on flowmeters)
Deposit Characteristics
Hardness 65 Rb
Bond Strength 4300 psi
Deposit Efficiency 65%arc (up to 90% with combustion guns)
Coverage 0 3oz/ft2/mil
Packaging Information Part # Description
P781 C-30 1/8″ 30# spool
P781 C-50 1/8″ 2×25 coil
P781 E-30 3/16 30# spool
P781 E-50 3/16 2×25 coil
