We have Diazo Paper to match the exposure and development characteristics of any Blueprint Machine on the market. The Diazo process is a process that involves Diazo paper and an ammonia-based blueprint machine. Laying your translucent original document on top of a sheet of Diazo paper and running it through a blueline machine will result in a blueprint. A general rule of thumb when buying and using Diazo paper is that a slower speed paper yields sharper denser images, which a faster paper saves time when reproducing many sheets. We are a full-line factory authorized Dietzgen Diazo Paper Dealer.