. . . "In general, however, an effective quantity of the total amount of the free radical photoinitiator is 0.1 to 10 phr, preferably 0.5 to 7.5 phr, and most preferably 1 to 3 phr. [0036] Waxes useful in the powder compositions of the present invention may comprise polyolefin, epoxidized polyolefin, polytetrafluoroethylene, and hydrocarbon waxes, such as polyethylene, polypropylene, oxidized polyethylen" .