This product is not for use with the Hot Air Welder, it is ONLY for re-injection.
The Fusing Liquid is used for repairs and additions to existing Unbreakable Partials. The Fusing Liquid is ONLY used when flasking and injection are necessary. Immediately prior to injection a drop of the Fusing Liquid is applied to the area that requires bonding . The Fusing Liquid begins to deteriorate the exitsting Unbreakable and when new Unbreakable is injected to that area, a bond is created that is virtually undetectable.