The plastic is almost cast, is hard and unforgiving and though not brittle, as yet is resistant to the usual liquid solvents. This means I had to resort to a bottom-of-the-drawer tube of poly cement which was actually Mrs. F.s fathers. Surprisingly it is still usable and has a glorious set of fumes which cuts the modelling sessions down somewhat. No wonder he's no longer with us if he was using this over a long period. There is a slight diagonal wind on some of the sheets. Probably not a problem with DPM's expectations of a square building, not so with my series of 'flats'. Some substantial 100thou beam-work has sorted it. Now the painting of thirty four windows while the sleet fall against the window.