Multi-Metal Corrosion Inhibitor for Closed Circuit Hot Water & Chilled Systems Low Toxicity – 0503

This product has been replaced by Accepta 2309


Accepta 0503 is a high performance, low toxicity, environmental friendly, multi-metal corrosion inhibitor developed for use in closed circuit hot water and chilled water systems.

Accepta 0503 is a neutral inhibitor suitable for multi-metal systems including aluminium and aluminium alloys.

If a neutral environment is required, Accepta 0503 should be considered as the preferred inhibitor.

Accepta 0503is compatible with ethylene and propylene glycol solutions.

Product Benefits

  • High performance multi-metal corrosion inhibitor for closed circuit hot water and chilled systems
  • Suitable for all metals including aluminium
  • Low toxicity
  • Environmentally friendly
  • Compatible with ethylene and propylene glycol.

Product Properties

Form: Solution
Colour: Pale amber
pH (neat solution): 7.0 – 7.5
Water solubility: Miscible with water in all proportions
Specific gravity: 1.08 – 1.10

*Full details of the product properties are available in the Safety Data Sheet. See below.

Application & Dosage Information

For mild steel/copper systems Accepta 0503 should be dosed at 1% of the system volume, equivalent to 10 litres per m3 to give approximately 100 -120 of molybdate as MoO4.

For multi metal systems containing aluminium Accepta 0503 should be dosed at a minimum of 1.5 – 2% of the system volume, equivalent to 15 – 20 litres per m3, to give approximately 150 to 200 ppm of molybdate as MoO4.

New systems should be pre-commission cleaned prior to dosing.

Accepta 0503 is normally added via a dosing pot or a positive displacement pump..

It is always advisable to carry out a ‘Control Of Substances Hazardous to Health’ (COSHH) assessment before use.

Safety, Storage & Handling

For full details concerning safety precautions, storage and handling procedures for this product please refer to the latest Safety Data Sheet. To request the latest MSDS for this product please fill out the form below.

    Additional information

    Weight 25 kg