Brucey wrote:fastpedaller wrote:Hmm - that's an interesting concept, what can be used as a 'stopping material'?
simplest and easiest is 'TippEx' or similar. Most braze alloys won't wet onto it, regardless of the flux used.
Well that's weird - I wouldn't have thought of that, and surprised it can take the heat without disappearing.
Reminds me of an incident many years ago...... had painted some steel with simple red oxide spray paint, and subsequently needed to heat the steel up to red hot. The paint survived fully intact. One day I ought to try this with with 'high temp exhaust paint' to see if it lives up to the marketing hype!