A caulking tube assembly is provided having a cap and an auger component, and the auger component has an auger engagement head portion and a helical or spiral portion that is compressible and sized to be fitted in a tube for holding caulk. The auger engagement head has a shaft housing sized to receive a mixing shaft therein. A coloring agent is added to the caulk in the tube and the auger component mixes the caulk and coloring agent to produce a tube of colored caulk. The caulk is thus colored to satisfy the requirements of virtually any application and dispensed from a caulking gun. In another preferred embodiment there is a caulking tube assembly with having a closed cap and a mixing component having a shaft engagement portion and a shaftless auger portion. The caulking tube assembly can also be used to mix epoxy.