Enhanced Zinc Coating with Environmental Friendliness

GALFAN Coating

Bundy tubes with hot-dip GALFAN coating, also called hot-dip zinc-aluminum alloy coating, are now used more and more for automotive fluid transferring.

GALFAN is a special metal alloy consisting 5% of aluminum and 95% zinc alloy. It is a perfect material to enhance the corrosion resistance of the Bundy tubes.

Item Requirement
Composition 5% aluminum, balance zinc alloy, per ASTM B750
Thickness 3μm min anywhere on the tube, 15μm averagely
Salt Spray Test 360 hr min


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