Star brite 1 Gallon Instant Hull Stain Cleaner

Star brite Instant Hull Cleaner removes difficult stains from fiberglass and other compatible boat hull surfaces. Its oxalic-acid-based formulation is intended for rust marks, leaf stains, and dried fish-blood discoloration. The one-gallon size is useful when treating larger hull sections.

The directions call for shaking the container and applying the cleaner with a sponge or sprayer. Allow about two minutes of contact before rinsing with fresh water. Severe staining may need a second application and gentle agitation. For best results, apply the cleaner at 50°F (10°C) or warmer.

Apply at temperatures of at least 50°F (10°C) for best results. Rubber gloves and appropriate protection should be used as directed on the label. Once the surface is clean and dry, a compatible marine polish can restore gloss and add protection. A second light treatment may be more effective than leaving the cleaner on the surface for longer than directed. Browse related boat cleaners for other marine maintenance jobs.

• One-gallon oxalic-acid hull cleaner
• Removes rust, leaf, and waterline stains
• Approximately two-minute treatment before rinsing
• Follow with polish after cleaning