Homeowner Benefits

  • Removes sludge, debris and scale
  • Restores heating efficiency
  • Helps reduce heating and maintenance bills

Dosage Instructions

How to use

With its quick-dose bottle, MC3+ Rapide can be added in just 20 seconds via the radiator or any available boiler drain. MC3+ can be added up to 30 days before a full clean, to better protect the system’s vulnerable metals during the process. Get detailed guidance on the most effective way to cleanse systems.

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Technical Specifications

Physical and chemical properties

  • Appearance: Liquid
  • Colour: Brown
  • Odour: Slight
  • Solubility: Soluble in water
  • pH (concentrated solution): 7.0
  • Density: 1.18 g/cm³

Environmental credentials

  • Non-hazardous
  • Non-toxic
  • Biodegradable


  • EN 9001 & ISO 14001

Contractor Benefits

  • Removes sludge, debris and scale
  • High performance chemical cleaner
  • High concentrate formula
  • Suitable for all hydronic heating systems
  • MC3+ Rapide can be injected into the system via the radiator or any available boiler drain and can be completed in as little as 20 seconds
  • Treats 33 gallons / 15 standard radiators, 25% more than similar products on the market

The ADEY® Best Practice step 1 - Clean

The ADEY® Best Practice heating system protection is a six-step process using products engineered to ensure maximum efficiency in hydronic heating systems. Watch Dr. Neil Watson explain all there is to know about step one – Clean.