Spray on the first coat of paint and allow it to dry. Turn the grates over and spray a coat on the undersides. Allow the coat to dry. Repeat this and spray on two additional coats at both sides and all surfaces of the grates. Allow each coat to dry before applying the next.
The Black Billionaires 2015. Of the 1,826 people who made it to the 2015 FORBES list of the Worldâs Billionaires, 11 of them are black, up from 9 a year ago. Nigerian cement tycoon Aliko Dangote is still the richest black person in the world, with a fortune estimated at $15.7 billion. He is followed by Saudi-Ethiopian construction magnate Mohammed Al-Amoudi, who is worth $10.8 billion. This year, two new moguls join the ranks of the richest black people on earth.
Image caption Bill Gates has been named the world's richest person for 16 of the last 20 years. Bill Gates has been declared the richest man in the world for the 16th time by Forbes magazine's annual ranking of global billionaires. The Microsoft founder once again beat Mexican businessman Carlos Slim to the top spot. Mr Gates' net worth rose by just over $3bn (Â£1.94bn) in the year to 13 February, to $79bn. There are a record 1,826 billionaires in the world, Forbes said, an increase of 181 in the past 12 months.