Regular price
Sale price
Regular price
Sold out
Unit price
Shipping calculated at checkout.



Hull Cleaner is a non-abrasive acid based cleaner for the removal of water stains, rust stains, mineral deposits and scale from the hulls and structures of fiberglass and aluminum boats. Hull Cleaner removes scale deposits and mineral deposits from metal surfaces including heat exchangers and radiators.


  • Powerful fast acting formula
  • Removes mineral deposits, rust and marine growth
  • Removes scale from heat exchangers, radiators and engines
  • Removes concrete from surfaces such as trucks and scaffolding
  • Can be used with caution on copper, steel and aluminum
  • Biodegradable

Directions for Use

To clean boat hulls, dilute with 2 – 10 parts water depending on difficulty of the cleaning task. Apply to hull surface with a pad or mop, allow to dwell and then scrub with a scouring pad or brush. Rinse clean and repeat if necessary.

To remove rust from metal surfaces, dilute with up to 10 volumes of water, depending on severity of rust, and apply to surface with a brush or as a spray. Allow to dwell for 5-15 minutes and then brush clean. Wash surface with water and dry - repeat if necessary.  To remove scale and marine growth from heat exchangers and engines, dilute Hull Cleaner with 5 parts water and circulate through the system for up to 4 hours. Thoroughly wash out system with water after treatment.

Before using this product read the product label and Safety Data Sheet.

Physical Properties

Appearance : Clear red liquid

Viscosity : water like

Density : 1.02

pH : < 1.0 acidic