A floor finish is a coating that provides a protective layer on top of a floor, while a floor sealer penetrates into the pores of the floor to protect it from within. Finishes tend to have a higher gloss and provide more protection against wear and tear, while sealers are typically less glossy but provide better protection against moisture and stains.

Consider the type of flooring you have, the amount of traffic it receives, and the desired appearance. For high-traffic areas, a durable finish with a high gloss is recommended. For areas that are prone to moisture or stains, a sealer is a better choice. If you want a natural look, a penetrating sealer is ideal.

The frequency of application depends on the type of finish or sealer used and the amount of traffic the floor receives. Generally, a finish should be applied every 1-2 years, while a sealer can last for 3-5 years or more.

Floor finishes and sealers protect floors from wear and tear, moisture, and stains. They also enhance the appearance of floors, making them look newer and cleaner. Additionally, finishes and sealers can make floors easier to clean and maintain.