1. coating or treating a surface with aluminum or an aluminum compound
Usage: British spelling; American spelling is 'aluminizing'; present participle or gerund form of 'aluminise'

Examples

• The factory is aluminising the steel panels to improve corrosion resistance.
• Aluminising the roof helped reflect heat and reduce cooling costs.
• The process of aluminising involves applying a thin aluminum layer to the substrate.
• Engineers recommended aluminising the pipes to extend their lifespan.