10 Best Boat Cleaners 2025 in the United States

Simple Green Industrial Cleaner & Degreaser is a versatile liquid cleaner designed for a variety of surfaces, making it a suitable choice for cleaning boats. It is safe for all washable surfaces, allowing use on fiberglass, vinyl, and other common boat materials without concern. The formula is biodegradable, non-toxic, and free from harsh solvents, making it environmentally friendly and safer for users compared to stronger chemical cleaners.

This cleaner effectively removes stains and odors, helping maintain a fresh boat environment. As a general-purpose cleaner rather than a product specifically formulated for marine use, it can tackle grease and grime but may not be as powerful on tough marine-specific issues like salt buildup or heavy algae stains. The product is concentrated and requires proper dilution, which means it can last a long time with careful use. Its lemon scent provides a pleasant bonus after cleaning.

Simple Green is easy to use, safe, and eco-friendly, representing a good option for boat owners seeking a gentle yet effective cleaner. Those needing very strong or specialized marine cleaning might prefer products designed specifically for boats.

The STAR BRITE Instant Hull Cleaner is a powerful cleaning solution designed specifically for boat hulls, including fiberglass, plastic, and painted surfaces. Its main strength lies in its effective cleaning action, capable of removing tough stains such as rust, fish blood, and scum lines. This makes it an excellent choice for maintaining the appearance of your boat.

The cleaner is easy to use, featuring a wipe-on, rinse-off formula that simplifies the cleaning process, which is great for users who want a hassle-free experience. The product's oxalic acid formula is relatively safer compared to harsher chemicals like hydrochloric or phosphoric acids, adding a layer of user-friendliness. Additionally, it is biodegradable, making it a more environmentally conscious choice.

However, it is important to note that while the product is marketed as being made in the USA, its country of origin is listed as China, which may be a consideration for some users. The product comes in a large 128-ounce gallon, offering good value for extensive cleaning tasks. For those looking to keep their boats spotless and well-maintained, the STAR BRITE Instant Hull Cleaner is a reliable option, though it is always wise to follow up with a protective polish for the best results.

The Simple Green Industrial Cleaner and Degreaser is a powerful, concentrated cleaner that can tackle tough grime, grease, and stains on various washable surfaces. Its industrial strength makes it a good option for boats with heavy dirt or oily buildup, especially on hard surfaces like decks or engines. Since it’s biodegradable and recognized by the EPA’s Safer Choice Program, it presents a safer choice for the environment compared to many harsher cleaners, which is important when cleaning outdoors near water.

This cleaner can be diluted to fit the cleaning task, making it cost-effective and versatile for different tools, including pressure washers or steam extractors that some boat owners might use. While it works well on sinks, tiles, and upholstery, it is primarily designed for general industrial or home use rather than specialized marine cleaning. Users should exercise caution when applying it to painted surfaces, gel coat, or sensitive upholstery to avoid potential damage.

As a liquid concentrate, it requires proper mixing, allowing adjustment of strength based on how dirty the boat is. For those seeking a strong, biodegradable cleaner for tough messes and willing to test it first on sensitive areas, Simple Green offers a reliable and environmentally friendlier option.