Star brite Heavy Duty Boat Bottom Cleaner - 32 oz Hull Cleaner for Fiberglass, Wood, Iron and Painted Surfaces

Star brite Heavy Duty Boat Bottom Cleaner is a concentrated, apply-wait-rinse formula built to dissolve stubborn marine deposits, scum lines, and rust stains from a boat hull without heavy scraping or scrubbing. It is designed for use across multiple hull surfaces, including fiberglass, wood, iron, rubber, and painted surfaces, making it a single solution for boat owners dealing with waterline buildup, alkali water rings, and yellow staining that accumulate over time in the water.

The formula is highly concentrated, so a small amount delivers professional-grade cleaning results while reducing overall product usage. It is biodegradable and phosphate free, and comes as a liquid in a 32 fluid ounce size. To use, the boat should be removed from the water and deposits allowed to dry, then the product is applied to the dry hull with an all-plastic sprayer, non-nylon roller, or brush and kept wet and foaming; foaming action indicates the product is actively removing deposits. After about 10 minutes of foaming, most surfaces rinse clean, though heavy deposits may need repeat applications and light scraping. Because this is a potent, caustic formula, protective gear is recommended during use.

Specifications

• Brand: Star brite
• Manufacturer Part Number: 092232P
• Item Form: Liquid
• Scent: Unscented
• Specific Uses For Product: Boat Hull Cleaner
• Surface Recommendation: Painted Surface, Fiberglass, Iron, Wood, Rubber
• Special Features: Heavy Duty
• Material Feature: Biodegradable
• Material Type Free: Phosphate Free
• Unit Count: 32 Fluid Ounces
• Item Volume: 1 Liters
• Size: 32 Fl Oz (Pack of 1)
• Weight: 2.57 pounds
• UPC: 071247922325

Frequently Asked Questions

What surfaces can Star brite Heavy Duty Boat Bottom Cleaner be used on? Star brite Heavy Duty Boat Bottom Cleaner (092232P) is formulated for use on fiberglass, wood, iron, rubber, and painted boat surfaces, making it suitable for most hull types.

Will this remove waterline stains and scum lines? Yes, this cleaner is designed to dissolve tough marine deposits, scum lines, and rust stains, including stubborn alkali water rings and yellow buildup along the waterline.

How do I apply Star brite 092232P to my boat hull? Remove the boat from the water, let deposits dry, then apply the product to the dry hull using an all-plastic sprayer, non-nylon roller, or brush, keeping the surface wet and foaming; rinse after about 10 minutes.

Is protective gear needed when using this boat bottom cleaner? Yes, Star brite Heavy Duty Boat Bottom Cleaner has a potent, caustic acid-based formula, so wearing protective gear during application is recommended.

What size does this cleaner come in? Star brite Boat Bottom Cleaner 092232P is sold as a 32 fluid ounce liquid in a single unit.

Is Star brite 092232P biodegradable and phosphate free? It is biodegradable and formulated without phosphates, per its listed material features.

Can this cleaner be used while the boat is still in the water? Stains and deposits above the waterline may be cleaned while the boat is in the water, but deposits below the waterline should be cleaned with the boat removed from the water and dried first.

How much product should I use for tough deposits? Star brite Heavy Duty Boat Bottom Cleaner is highly concentrated, so small amounts are effective; heavy deposits may require several applications and some light scraping in addition to the cleaner.

What does foaming during application mean? Foaming indicates that Star brite 092232P is actively breaking down and removing hull deposits; the product should be kept wet and reapplied as needed to maintain foaming action.

What is the weight of the Star brite Boat Bottom Cleaner bottle? The 32 ounce Star brite Boat Bottom Cleaner (092232P) weighs 2.57 pounds.

Should I rinse the sprayer after using this product? Yes, if a sprayer is used to apply Star brite 092232P, fresh water should be pumped through it before storing to prevent residue buildup.