Fireproofing Fabric
Bought a 1978 magazine that has a recipe for fireproofing fabrics (and I would think you could use this on skeins, etc)..
7 oz Borax
3 oz boric acid
2 qts hot water
Dissolve boric acid by making a paste with a little water. Add the Borax and the remaining water and stir until clear. The fabric may
be dipped in the solution, sprayed, or sprinkled.