Heat Treating Foil ?

[R. D. Finch]

My foil packs come out of the furnace, and they are swelled out, what causes this? I place a piece of brown paper bag inside and fold over the edges twice.

[fitzo]

Paper burns the oxygen, gives off CO2 and carbon monoxide and water vapor, pouch pooches out.

[RJ Martin]

Ricky: FItzo is correct-Fold your foil packs carefully and seal the edges firmly. You can eliminate almost all of the air inside the pack in this way. Try a package without the paper inside-I think you'll like it.

[R. D. Finch]

Thanks Guys, I'll try it with out the paper.

[blademan]

Switch to Cotten Balls, Works Great

James

[R. D. Finch]

I forget this, when I fold it over once and use the paper it dosen't swell. Does it mater on how manny times it's fold over.