Crackbond® JF Joint & Crack Filler is a two-component polyurea joint filler designed for heavy duty traffic, property repairs and freezer applications. It is solvent free, flexible and with its low viscosity and self-levelling design, allows for 10-15% movement of installed joint width. It may be used in temperatures between -40 °F to 120 °F (-40 °C to 49 °C). Excellent for the filling of active cracks in concrete in exterior horizontal applications. Polyurea formulation offers long term product adhesion and stability without cracking or deterioration.