Paint on a 747 777 weighs approx 2-300kgs.
Which is why JAL and Cathay's latest freighters are being operated without paint to utilise that weight saving. Adds up to a lot of pay load and fuel saved over a year.
Green primer gives the key for the top coat and top coat provides moisture and corrosion protection.
Im sure all the chemical companies that develop paint have been working on decreasing the weight of the paint for years and probably have done so already.
The paint itself is 2-pac - paint mixed with its hardner.
Last edited by PaulW; 23rd December 2006 at 22:31.