A liquid hard soldering flux that prevents the formation of firecoat and firescale during soldering. Use Before Primary Flux For Firescale Protection
Contains: Water, Boric Acid, Borax & Trisodium Phosphate. Same formula as Prips flux
* Preheat the silver with a soft torch flame. Spray “NO-FYR-SKAYL” so it will instantly dries on contact, forming a uniform white crust on the silver. Coat all sides so that the reflective surface of the metal is hidden.
Sold in a 4oz bottle.