This invention relates to fusion bonded epoxy rebar powder coating compositions of enough latency overtime, which cure in seconds upon residual heat up to 239.0° C., exhibiting low temperature flexibility to achieve crack-free rebar bending at −45° C. and a glossy finish without yellowing or discoloration. This invention further relates to rebar powder coatings compounded using suitable dihydrazide amines as the curing agent, in combination with an executive resin blend including a compatible toughening epoxy, and a synergic catalyst package to meet the intended application challenges.
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