ScaleAway BioMarine Descaling Engine Flush is used at a 5:1 solution as the recommended solution strength for descaling aluminium outboard boat motors.
       Example: 10 Litres of ScaleAway BioMarine to 50 Litres of water.

Description
ScaleAway BioMarine Descaling Engine Flush is designed to safely and quickly remove scale, calcium deposits, corrosion and bio-fouling from your engine cooling system. These deposits can make your engine run hot by restricting water flow through the cooling jackets. Calcium build-up may also damage your engine water pump. Descaling Engine Flush will NOT damage seals, gaskets or rubber impellers - may damage old seals that need replacing anyway.

The specialized formula in ScaleAway BioMarine is highly effective at dissolving calcium carbonate incrustations like zebra mussels and barnacles. The first active ingredient penetrates organic tissue and binds tightly to calcium, while the second active ingredient in the formulation acts as an excellent chelating agent to break down and lift the dissolved shell remnants without eating away at your motor's internal metals.

ScaleAway BioMarine is a low pH combination of organic biodegradable acids to dissolve the calcium carbonate shells and the proteinaceous threads holding the mussels to a surface.
ScaleAway BioMarine is a rapid, biologically corrosive physical destruction process dissolving barnacles and zebra mussel shells which are composed primarily of calcium carbonate.

When ScaleAway BioMarine hits the shell, a rapid chemical reaction occurs which dissolves the calcium carbonate, weakening the exoskeleton and breaking down the byssal threads they use to anchor themselves.
As the shell structure degrades and dissolves, the seal fails. The ScaleAway BioMarine descaling agent penetrates the interior, resulting in rapid mortality.

Features
      Removes scale & bio-fouling deposits from all boat engines.
      Will not damage engine seals, gaskets or rubber impellers.
      Safe to use on all aluminium boat engines.
      Strong multi organic acids
      Easy to handle
      High thermal stability
      Non-toxic
      Fully biodegradable

Metal Safe Descaler
ScaleAway BioMarine is designed to bind with calcium molecules found in limescale. Scale build-up is the number one reason water cooled system malfunction. By binding only with calcium, remaining minerals and deposits held by the calcium are released to rinse free without harm to equipment. ScaleAway BioMarine does not oxidize, corrode or attack metals found in water systems, When used as directed, ScaleAway BioMarine Descaling Engine Flush may be used on all types of vessels including workboats, cruise ships, mega yachts, freighters, ferries and recreational boats. ScaleAway BioMarine is ideal for heat exchangers, condensers, cooling systems, and all water circulation systems exposed to water scale and bio-fouling.

Descaling Instructions for Outboard Motors
Remove boat from water. Ensure propeller does not hit inside of container. For safety, remove propeller befor starting the motor. Place the motor in an appropriate container so that the engine intake is well below the lip of the container.
Fill the container until engine intake is completely submerged in the diluted ScaleAway BioMarine Descaling Engine Flush mixture.
Mix one part of concentrated ScaleAway BioMarine with 5 parts fresh clean water.

Important System Precautions Prior to Descaling Process:
1. Remove the thermostat: Take out the engine thermostat before starting. This ensures the fluid circulates immediately through the entire block without waiting for the engine to heat up.
2. Check the water pump impeller: Check your rubber water pump impeller after the engine flush. Acid descalers can sometimes degrade old rubber compounds.
3. Sacrificial anodes: Remove any internal zinc anodes before circulating an acid descaler. The acid will rapidly dissolve them and waste the chemical strength.

Circulate the ScaleAway Bio-Marine
1. Fill your bucket reservoir with diluted ScaleAway BioMarine at 5:1 reatio as suggested above. Run the engine to circulate the mixture into the cooling lines. Circulate it through the engine for 10 to 20 minutes with ambient non-chlorinated water in the bucket.
2. Turn off the engine. Let the mixture sit inside the cooling lines for at least 6 hours (Maximum permissible time – 12 hours).
3. Run the engine again to circulate the mixture through the cooling lines. of the engine for 10 minutes.
4. Neutralize the spent descaler: Run the engine again to circulate the neutralising agent through the cooling lines of the engine. Add ScaleAway pH-Buffer to the spent descaling solution. When the spent descaling solution reaches a pH of around 7.0 – 8.0 the spent descaler has been neutralised.

Flush with fresh clean water:
1. Start the engine and flush the entire cooling system thoroughly with fresh clean water to discharge the dead organic material.
2. Final fresh clean water flush: Flush the engine with fresh clean water one last time to remove all traces of the descaling agent before storage or operation.

Putting the motor in Storage:
1. Run the engine again to circulate the neutralising agent through the cooling lines of the engine.
2. Add ScaleAway pH-Buffer to the spent descaling solution.
3. Add a small amount of ScaleAway pH-Buffer to attain a pH value of 10.0 - 11.0 to the engine while flushing with fresh clean water one last time to leave a residual layer of the buffing solution on the internal water passages of the boat motor and cooling system before storage.

CAUTION: Wear goggles, respirator mask and gloves when handling this acid based product. Take precautions against spills near any grass and plants.
Keep away from children and pets. Do not mix with other chemicals.

Propreitary Formulation
    Multi Organic Acid Combination.
    Chelating Agents and Detergent Builders.
    Surfactants and Penetrating Agents.
    Corrosion Inhibitors - Steel, Copper and Aluminium.
    Defoamer and Biocide.

Take a look at Before and After images of a boat motor cleaned with ScaleAway Bio-Marine Descaling Engine Flush.