I searched for it a couple of years ago, but couldn't find a UK source. Maybe the name is different in the UK?
I ended up buying some from this site. I work in engineering, and have intended to speak to the guys that do our 'heat treatment', but haven't got around to it.
Do you class the mostly recycled glass loft insulation as fibre glass?
Cheap as chips & from a short test I did looks promising. If you want some let me know & I'll post an envelope full out to you - I have a roll to insulate the dog pen & it's more than I need.
Some folk have reported problems using fibre glass, Ross. Don't scratch your eyes, or go for a pee without carefully cleaning your hands after using it.
How about stove sealing rope
here
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