ADEY Professional Heating Solutions



Central Heating System


Faster, stronger, simple

High performance MC1+ RAPIDE from ADEY, the makers of the market leading MagnaClean® filter, protects against both system corrosion and limescale deposition. MC1+ RAPIDE provides faster, stronger and easier dosing; allowing a 125 litre system to be dosed in just 20 seconds.

Suitable for use in both sealed and open vented central heating systems, old and new.

MC1+ RAPIDE chemical delivers far better central heating system protection than a standard 100 litre inhibitor by future-proofing the system against partial system drain-down. Formulated to provide better protection for the average-sized system AND protect systems with up to 15 radiators.

The latest MC1+ RAPIDE chemical is the product of a considerable amount of industry knowledge and experience built up over a long number of years. It has been developed and tested within ADEY’s own UKAS accredited laboratories here in the UK.

  • Prevents the generation of black sludge
  • Treats 125 litres in 20 seconds
  • Reduces component failure and maintenance call-out costs
  • Maintains room temperature comfort levels
  • Prevents cold spots in radiators
  • Helps maintain system efficiency and reduce fuel bills
  • Protects all metals and alloys in heating systems
  • Suitable for all water types

To check levels of MC1+ RAPIDE in the central heating system, view ADEY’s MC1+ Quick Test Kit  

Product data

How to use

300ml of MC1+ RAPIDE treats up to 125 litres or 15 single panel radiators.

Introduce MC1+ RAPIDE to the system using the adaptor provided via the filling loop, radiator or through a MagnaClean filter air vent.

To ensure ongoing protection, MC1+ RAPIDE levels should be checked regularly during annual system service, or following any system maintenance requiring full or partial drain-down. To ensure adequate treatment level, check the MC1+ RAPIDE concentration using MC1+ Quick Test Kit.

N.B. NOT for use in single feed indirect cylinders.

Physical and chemical properties

Appearance: Liquid

Colour: Yellow

Odour: Slight

Solubility: Soluble in water

pH (concentrated solution): 8.0

Density: 1.15 - 1.19 g/cm³


ADEY is a carbon neutral company and cares about the environment. MC1+ RAPIDE is classified as non-hazardous and while delivering effective protection against corrosion and limescale is non-toxic and biodegradable.


EN 9001 & ISO 14001

Health & Safety

Warning: Pressurised container. May burst if heated. Protect from sunlight and do not expose to temperature exceeding 50°C. Do not pierce or burn, even after use. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Keep out of reach of children. Use only as directed.