[TheForge] brazing revisited

[Bruce Freeman]

That sounds like a clay wash - fire clay or something such in water.
It's used as an "anti-stick" when slumping glass over forms in a
furnace.  It will keep the almost-molten glass from sticking to
anything - steel, kiln shelves, etc.

<snip> They bought some powdered mixture that had to
> be blended with water.  It was the consistency of light pan cake batter
> that we brushed on.  When it dried we did all the welding and nothing
> stuck to it.   I never saw it again but might be worth lookin up.
>
Bruce
NJ