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GRUNT! 32oz Boat Cleaner - Removes Waterline Rust Stains [GBC32]

GRUNT! 32oz Boat Cleaner - Removes Waterline Rust Stains [GBC32]

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Regular price $29.95 USD
Regular price $39.99 USD Sale price $29.95 USD
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32oz Boat Cleaner - Removes Waterline & Rust Stains

This is an ethanedioic acid-based cleaner.


  • This cleaner removes yellow/brown waterline stains/scum and rust stains
  • Shelf Life at 23 degrees Celsius is 24 months


  • pH Value: 1.0
  • Size: 32oz bottle
  • The Product Can Be Applied By: A brush is recommended, but cotton, a rag, or a sponge may be used
  • Product Mixing Ratio (By Volume): Single pack

Recommended Use

To be used for cleaning the waterline staining and rust staining on GRP and painted surfaces.

Surface Preparation

Apply the product to the area to be treated. Allow it to work for up to 10 minutes. Rinse well with fresh water and a sponge.


Clean with detergent.


This product must be stored in accordance with national regulations. Keep the containers in a dry, cool, and well-ventilated space away from sources of heat and ignition. Containers must be kept tightly closed. Handle with care.

Quick Guide (pdf)
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