The peeling and cracked lettering on this boxcar was achieved using turpentine. This technique was discovered quite by accident on another model. After seeing this type of boxcar in a prototype picture with cracking and peeling lettering and reporting marks, I decided to try it on this model. For some reason this only seems to work on lettering applied by Exactrail. Generally, the first thing I will do on a model prior to any weathering is to hit it with a dusting of dullcoat to seal the factory finish. Neglecting to do this on another Exactrail model and then applying a oil paint wash, the lettering started to crack and bubble. I repeated that procedure on this model in a more controlled method of very light application to achieve that look here.