Anyone used heat barrier spray to protect push-fit fittings near soldering?

[WaterTight]

I know you're meant to be a certain distance from push-fit before soldering (a meter?) but was wondering if that stuff would mean you could be closer if need be?

 

[AWheating]

you can get away with 400mm without to much bother, i would just rap a wet rag around the pipework before the fitting and cool it down as soon as possible. Not really seen that barrier gel used.

 

[GasmanxxxR1]

can you get a heat mat in there?

 

[stani]

Have got the barrier gel and it works, not sure how close you can go to a push fit, but I know if I spray it on copper and burner immediately to the left and hand immediately to the right of the gel I don't get burned. Similar product is used by stunt men so it does work., there is also a similar product out for the initial treatment of burns and that definitely does work.