Learn the 4 steps to DIY refinish a porcelain sink for a smooth and durable finish. Have a rust spot? No problem! In this how to refinish a porcelain sink I cover everything from cleaning to repair to painting a vintage style cast iron sink. Re-enameling an old farmhouse sink in a bathroom is simple with these tips. Check out this easy DIY home improvement + bathroom sink makeover on a budget using an old procelain sink. Save this, then read all about it!