Titanium Syringe bonds similar and dissimilar metals with superior strength. Fills gaps,cracks and voids in all metals. Once cured,it can be drilled, tapped, machined and sanded. Patented 1 - 2 - 3 dispenser : 1-SNAP 2-DISPENSE 3-MIX ∙ Includes Mixing Tool∙ Specifically formulated to work on all metals ∙ Waterproof ∙ Grey color