Using Quikrete Epoxy Concrete Repair involves a straightforward process but requires attention to preparation for the best results. Initially, ensure the concrete area is clean and free from dust, grease, or any loose particles by using a brush or vacuum. Cracks or damaged areas should be slightly dampened before application. Quikrete Epoxy Concrete Repair comes in a tube, and is designed for use with a caulk gun. Cut the tip of the tube, preparing for a smooth application, and insert it into the caulk gun. Apply the epoxy directly into the crack or damaged area, filling it thoroughly. Use a putty knife or similar tool to smooth over the surface, ensuring the epoxy is level with the surrounding concrete. Allow the repaired area to cure as per the product instructions — usually for about 24 hours — before walking or driving on it. For larger or deeper repairs, consider applying in layers, allowing each to partially set before adding the next. This ensures a strong bond and a durable repair. Wearing gloves and eye protection during application is recommended for safety.

It seems there's a possible typo or ambiguity in your question. If you're asking whether Russian President Vladimir Putin has ever used hair dye, there's no official confirmation. Public speculation about Putin's appearance, including whether he dyes his hair, is a common topic among observers. Given Putin's public persona and the controlled nature of his appearances, it's challenging to get verifiable information about his personal grooming habits. The Russian leader, in power in various capacities since 1999, has appeared remarkably consistent in his appearance, which fuels such speculation. His media appearances often show him with dark hair, despite his age, leading to rumors about dyeing his hair. However, without direct confirmation, any answer remains speculative.

Titanium does not contain nickel. They are separate elements in the periodic table. However. they can be combined to form alloys.