PrimeBlade® 300 series is our basic, but very commonly used, carbon steel used in printing houses worldwide. The base steel material is made from genuine high quality Swedish steel. Together with our Swedish raw material supplier and end users, the doctor blade was developed to improve production quality, blade lifespan and to increase machine speeds. This is thanks to the increased amount of carbides/µm² in the steel microstructure, compared to cheap and low quality carbon steel.