Technical Specifications

Frost Protection

  • Concentration 25% 30% 35% 40%
  • Protection -11°C -14°C -17°C -22°C

Physical and chemical properties

  • Appearance: Liquid
  • Colour: Colourless/pale blue
  • Odour: Slight
  • Solubility: Soluble in water
  • pH (concentrated solution): 7.0 - 8.0
  • Relative Density: 1.02 - 1.10 g/cm³


  • Non-hazardous
  • Non-toxic
  • Biodegradable


  • EN 9001 & ISO 14001


  • Prevents water freezing
  • Prevents corrosion and scale formation
  • Best in class formulation for mild steel protection to prevent magnetite generation
  • Protection at -11 degrees C at a 25% concentration
  • Compatible with all metals
  • Buffered to maintain a neutral pH of system water
  • Compatible with all ADEY chemicals
  • The concentration of MCZero can be adjusted for lower levels of freeze protection

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Protection from freezing temperatures, corrosion and scale formation with added biocide.

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Magnetite is the biggest cause of central heating system breakdowns, hands down.