Since I got turned on to "Krylon" I use it on everything. Interior, exterior, It boasts super bonding and now there is a line made just for plastic. The best part is the dry time, 15 minutes. Sure helps at production time. Painting the canopies started after I put about 10 or so hours in a custom cocpit with a pilot on a stinger .60 and then wrecked the plane. Paint is alot quicker. Joe