I need some black gauze of some sort to build some flags out of. Fireproof, natural fibre rather than plastic, so it doesn't burn or melt.
Usually I'd use sharkstooth scrim as it seems to be about two thirds of a stop's worth, but it only comes in enormous widths for making stage cloths.
Various grades of black gauze and mesh are available from general fabric suppliers, but they're often nylon or polyester and terribly sensitive to heat.
Looking for a UK supplier, ideally.