I want to try using steel tubes (one inch diameter, not sure of steel thickness, maybe a few mms) for draping. They would not be stainless steel, just regular “rough” steel from the hardware store. Anyone have experience with this? I do not have access to spray-on release agents (can’t have then shipped here), so should I use kiln wash or just place fiber paper between it and the glass?
I would be placing them on the side to use the curve of the rod, so there will be air flow in the rod. I plan on bracing them with kiln furniture so they do not roll.
Yes cover the pipe with fibre paper – 0.5 mm at least. No point batt wash, as the steel will spall so badly. You need to advance in temperature slowly as the pipe drains the heat from the glass where it rests.