I tested the water with a candy thermometer and when it read 120 degrees centigrade , I slipped in the ole canopy. When I checked on it ten minutes later it looked like a week old orange peel.
120 deg.C = 248 deg.F
Water boils at 212deg. F @ sea level
You can tint with Rit at about 135Ddeg. F, some plastics do not take the dye at all. wash the plastic very well before you put it in the dye, but don't expect to get a real dark color. Black has not proven to be very good, it sometimes looks brown when dry.