Maguires, or 3-M, has a good line of products that you can use on your boat. Maguires products can be purchased at your local West Marine store. We suggest #4 premium marine polish, but they also have a complete system you can add to your boat that has several steps. If your boat has been sitting for an excessive amount of time and you can see a lot of chalkiness, you will most likely need to contact a fiberglass shop and have the boat wet sanded to bring life back to the color.