Bathtub resurfacing will reveal a beautiful, new-like tub, without the cost of a total replacement. However, resurfacing is more than a simple DIY project. To strip the surface of the tub, you will have to use a set of specific chemicals that can be dangerous if not used correctly. Learn about some of the risks involved in the process to ensure you're protected. Invest in Temporary Ventilation Opening your windows or turning on the exhaust fan in the bathroom is not enough to provide the right amount of ventilation during the resurfacing process.