What is the difference between a blueline and a bond copy?
Bluelines are products of the diazo process. The diazo process requires translucent originals such as vellums, sepias or mylars. Ammonia gas vapors are used to develop the prints. That is why you might notice a pungent odor when you unroll a set of plans that are created via the diazo process. Bond copies are created on multi-function digital or analogue copiers. We do not require translucent originals in order to produce bond copies. The output is clean and precise. There are no offensive odors when you unroll a set of bond prints. They can be enlarged or reduced (36 maximum in width.) Production time is about the same for both processes. The cost of bond prints is somewhat higher then bluelines.
