Well-used concrete sleepers (Foto: Jimmy Low (c)) Unfortunately, Märklin/Trix does not produce flex rails with concrete sleepers, which is a pity since they are selling Era IV-VI rolling stocks. As far as I am aware, Roco (42401), Piko (55150), Weinert (74003) and Peco UK (SL-102) produce them. I took 14 concrete sleepers from a section of the Roco flex rails. I used a sharp blade to remove extra plastic sprues and filed the excesses. To make the sleepers look worn and partly damaged from use, I filed selected parts of the sleeper to give it a chipped or worn look. … Continue reading Weathering Concrete Rail Sleepers