Abstract:
Aluminium alloy is known for its exceptional perfonnance in flexible environment. Based on
maritime industry, corrosion was occur and depending in various environment. As a solution,
natural coating is been used to overcome this problem. The inhibition of the corrosion on
aluminium by henna extract in seawater using salt spray was been studied by using coating
technique. This studied used plant extract which is henna (Lawsoniainermis). Aluminium
plates were coated by henna in different solvent and placed in salt spray for 30 days. The
solvents were used as pigment to create new paint or fonnulation before coating samples. The
scope of study only focuses for certain material which is aluminium alloy and henna extract.
The characterization of the corrosion was tested using Fourier transfonn infrared
spectroscopy (ITIR), weight loss method, potentiodynamic polarization (PP),
electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM).
