MC40+®
MC40+ Cleaner and Descaler has been designed specifically to remove
limescale and hardened debris from heating systems. Once added, its
powerful formulation gets to work on dissolving limescale immediately.

Installer benefits
- Suitable for all heating systems and all water types
- High-performance, advanced chemical cleaner
- Rapidly removes limescale, sludge and debris
- Free-flowing powder makes the product ideal for use with ADEY's MagnaCleanse
- Restores heating efficiency of existing systems
- Neutraliser sachets included within the domestic pack
- Treats 125 litres
- Available in 2.3kg kits
Technical specifications
Physical and chemical properties
- Form: Pink/red powder
- Odour: Slight
- Solubility in water: Soluble
- Relative Density: 1.8 g/cm3
- Volatile organic compound g/l: 20% (w/w)
- pH: <2 [conc. (% w/w): 1.5%]
- Quality: ISO 9001 & ISO 14001

Dosage instructions
How to use
For detailed instructions for use, refer to the instruction leaflet enclosed within the MC40+ Cleaner and Descaler box.
The cleaner can be added slowly in small
amounts as a free-flowing powder into the RapidFlush canister, when
completing a MagnaCleanse, or directly into a mechanically assisted
flushing device. Alternatively, by adding MC40+ to warm water and
agitating until the powder is dissolved, the cleaner can be introduced
via the filling loop or radiator using a suitable injector, or via a
MagnaClean® filter.
For open vented systems, the product can also be added via the F&E tank.
High-performance MC40+ is a concentrated, advanced cleaner, as one container treats 125L.
For larger, more heavily scaled systems,
additional MC40+ may be required. The time needed to complete the clean
is dependent on system condition; however, the product should not be
circulated for more than four hours.
Once MC40+ has been adequately
circulated, and if the system water is remains red, add the sachets of
neutraliser to the system, until the water turns yellow. If the water
remains red in colour, a further neutraliser is required.
Following adequate system circulation,
dispose of the system water appropriately, in accordance with local
disposal regulations. Flush the system until the water is clear. Add the
correct dosage of MC1+ Protector for the optimum protection against the
build-up of corrosion and limescale.
NOTE:
Product may cause slight staining to MagnaCleanse hoses or canisters.
Performance of the MagnaCleanse will not be affected.
Homeowner benefits
- Rapidly removes limescale
- Restores heating efficiency


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Learn more about our water treatment chemicals
ADEY Best Practice in liquid form
ADEY’s water treatment chemicals have been created from premium ingredients and mixed expertly together, the complete range is developed to an outstanding quality. With 9 formulas to choose from, you can clean and protect every system.

Also available
MC3+ Cleaner has been developed specifically to keep heating systems free from debris. Once added, its powerful formulation gets to work on breaking down magnetite and other sludge in as little as an hour.
View productMC40+®
MC40+ Cleaner and Descaler has been designed specifically to remove limescale and hardened debris from heating systems. Once added, its powerful formulation gets to work on dissolving limescale immediately.
Installer Benefits
- Suitable for all heating systems and all water types
- High-performance, advanced chemical cleaner
- Rapidly removes limescale, sludge and debris
- Free-flowing powder makes the product ideal for use with ADEY's MagnaCleanse
- Restores heating efficiency of existing systems
- Neutraliser sachets included within the domestic pack
- Treats 125 litres
- Available in 2.3kg kits
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Technical Specifications
Physical and chemical properties
- Form: Form: Pink/red powder
- Odour: Slight
- Solubility in water: Soluble
- Relative Density: 1.8 g/cm3
- Volatile organic compound g/l: 20% (w/w)
- pH: <2 [conc. (% w/w): 1.5%]
- Quality: ISO 9001 & ISO 14001
Dosage Instructions
How to use
For detailed instructions for use, refer to the instruction leaflet enclosed within the MC40+ Cleaner and Descaler box.
The cleaner can be added slowly in small
amounts as a free-flowing powder into the RapidFlush canister, when
completing a MagnaCleanse, or directly into a mechanically assisted
flushing device. Alternatively, by adding MC40+ to warm water and
agitating until the powder is dissolved, the cleaner can be introduced
via the filling loop or radiator using a suitable injector, or via a
MagnaClean® filter.
For open vented systems, the product can also be added via the F&E tank.
High-performance MC40+ is a concentrated, advanced cleaner, as one container treats 125L.
For larger, more heavily scaled systems,
additional MC40+ may be required. The time needed to complete the clean
is dependent on system condition; however, the product should not be
circulated for more than four hours.
Once MC40+ has been adequately
circulated, and if the system water is remains red, add the sachets of
neutraliser to the system, until the water turns yellow. If the water
remains red in colour, a further neutraliser is required.
Following adequate system circulation,
dispose of the system water appropriately, in accordance with local
disposal regulations. Flush the system until the water is clear. Add the
correct dosage of MC1+ Protector for the optimum protection against the
build-up of corrosion and limescale.
NOTE:
Product may cause slight staining to MagnaCleanse hoses or canisters.
Performance of the MagnaCleanse will not be affected.
Homeowner Benefits
- Rapdly removes limescale
- Restores heating efficiency

Get straight to the products you need in a few clicks.


Find a Stockist
Enter your postcode to find your nearest merchant.
How to Videos
ADEY MC Chemicals
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ADEY Chief Technical Officer Neil Watson talks about our Queen's Award winning MC chemical range.
ADEY - The Complete Chemical Range
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Our water treatment chemicals have an incredible start in life; created from premium ingredients and mixed expertly together, the complete range is developed to an outstanding quality.

Also available
MC3+ Cleaner has been developed specifically to keep heating systems free from debris. Once added, its powerful formulation gets to work on breaking down magnetite and other sludge in as little as an hour.
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