If you've decided to refinish your bathtub yourself, it's important to ensure that you have not only the right tools for the job but also the technical expertise that will increase your probability of being content with the end result. Bathtub refinishing is a process that saves you the cost and hassle that are associated with completely replacing the tub while allowing you to get the job done right so that you don't regret not tearing the old tub out and putting a new one in. The manner in which you apply the refinishing top coat goes a long way toward influencing how the job will look. Here are some reasons that you should apply multiple thin, light coats.
A Smoother Finish
While you'll want to lightly sand each top coat after it dries and before you apply another, taking the approach of applying thin, light coats will give you a smoother finish. Should you attempt to get the job done faster by applying fewer, but thicker, coats, you'll commonly get an uneven finish. For example, when you put the top coat on thick, there will be globs of it that not only make more work for you during the sanding process but will also be possible for you to miss.
Faster Drying Times
Bathtub refinishing can be a fairly quick project, depending on the condition of your tub at the start of the job. For example, if your tub is sound, rather then rusty, and you're simply refinishing it in order to change the color, you can get the job done in a short amount of time. When you apply thinner coats, they'll dry faster. Thicker coats can take significantly longer to dry, which will unnecessarily drag out this project for you.
Less Top Coat Wasted
When you buy a can of top coat for your bathtub refinishing job, you want it to last you until the work is done. If you make the mistake of applying the top coat in thicker layers, you'll often waste this product unnecessarily. And, since this approach can leave you with an unfavorable result that results in more sanding and more additional applications, you can quickly go through your can and be forced to buy another one. Conversely, applying the top coat in thin coats won't waste the product. This will save you not only the cost of buying more, but also the hassle of returning to the home improvement store to do so.