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GRUNT! 16oz Boat Cleaner - Removes Waterline Rust Stains [GBC16]

GRUNT! 16oz Boat Cleaner - Removes Waterline Rust Stains [GBC16]

Regular price $20.99 USD
Regular price $24.99 USD Sale price $20.99 USD
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Shipping calculated at checkout.

16oz 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: 16oz 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)

Shipping & Delivery

Shipping Charge and Time:

Delivery Time : Handling time + Transit time
Handling time: 1-2 business days (Monday to Friday)
All the products will be put through a production process; therefore, there will be a handling time for them.

Shipping rate and transit time:

Shipping Name: Standard  Shipping
Transit time: 3 to 5 business days
Shipping Fee: $6.95

Customer Happiness: Our goal is to deliver smiles along with your order. If you ever have any questions or concerns, our customer support team is here to assist you.


Maintaining a secure connection is our top priority.  Your payment information is processed securely.  We do not store credit card details nor have access to your credit card information.

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