Star brite Instant Hull Cleaner uses a naturally derived oxalic acid formula to cut through rust, dried fish blood, and leaf stains on fiberglass, plastic, and painted hull surfaces — no aggressive chemicals required. Shake, apply, wait two minutes, and rinse clean. Follow up with Star brite Premium Marine Polish to restore gloss and shield the hull from the elements.

Specifications:

• Size: 1 gallon
• Formula: Oxalic acid-based, naturally effective
• Compatible surfaces: Fiberglass, plastic, and painted boat hulls
• Removes: Rust, dried fish blood, and leaf stains
• Application method: Sponge or sprayer
• Dwell time: Allow 2 minutes on surface before rinsing
• Rinse: Fresh water
• Heavily soiled surfaces may require a second application and light scrubbing
• Best used at temperatures of 10°C (50°F) or warmer
• Rubber gloves recommended during use
• Recommended follow-up: Star brite Premium Marine Polish for shine and protection

⚠️ California Prop 65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.