Ill try to keep this short. I recently repainted the front bumper of my 2016 prius and installed plus painted a new rear bumper. After driving for 2 weeks, the front accumulated numerous pea sized chips, while the back had none. this seemed odd to me as before the repaint, the front had barely any chips at all after 3 years of driving, and i only decided to repaint the front and replace the back due to cracks caused by my negligence. Took it back to the shop and they blame the bad paint, redid it. After two weeks, same thing happened. As i was doing some maintenance in the dealership, i inquired about this with a mechanic and he told me that it could be poor prep work. but he also said that the paint on a repainted bumper would never adhere as well as a newly painted one. This seem to make sense as my back bumper had no chips at all, however i do realize that it may also be because the back is less likely to run into chips in the first place. Another thing is that i did the painting during the Canadian winter which means the temperature is always below freezing.i don't know if this would have made any difference due to its possible effects on the curing of the paint. Wha do you guys think, does a repainted bumper differ in cohesion compared to a new bumper? is it because the bodyshop did a poor job preping before painting? is it because of the temperature? or is it that bodyshops can never produce the durability of that of a factory paint?