14th January 2009, 01:47 AM
Don't know about cheap but we use a local stationers that sources un-gridded 120 metre rolls. Most planning and section drawing is done on A1 boards. For a grid we use rolls of graph paper cut into A1 sheets and professionally laminated - last for years. These are stuck to the boards with duck tape, which needs replacing about once a year. We use masking tape to fix the permatrace to the board, once the trace is ready to be archived we just trim off the excess with the sticky on.
As to the archivability of permatrace I was once shown a draw full of disintegrated permatrace from the mid 60s in the NMRS. Also when heat affected (e.g. by fire) it has a habit of turning into crisp popadom. If you want archivability then it is back to parchment in my opinion .
As to the archivability of permatrace I was once shown a draw full of disintegrated permatrace from the mid 60s in the NMRS. Also when heat affected (e.g. by fire) it has a habit of turning into crisp popadom. If you want archivability then it is back to parchment in my opinion .