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Scale & Multi-Metal Corrosion Inhibitor for Closed Systems

Scale & Multi-Metal Corrosion Inhibitor for Closed Systems

Accepta 2509 is a high performance cooling water scale and multi-metal corrosion inhibitor scientifically formulated to treat and protect closed circuit water systems including central heating systems, engine cooling systems and for system pressure testing.

A technically advanced formulation, Accepta 2509 is compatible with anti-freeze offering high performance multi-metal protection for a range of systems, including central heating systems, engine cooling systems and system pressure testing.

Accepta 2509 contains a pH buffer proven to maintain a range of 6.5 - 7.5, giving the same effective protection to aluminium systems.

NOTE - Accepta 2509 contains nitrite.

Product Benefits

  • High performance scale and corrosion inhibitor
  • Compatible with anti-freeze
  • High performance multi-metal protection
  • Suitable for use in central heating systems
  • Suitable for use in engine cooling systems and system pressure testing
  • Contains a pH buffer maintaining range of 6.5 – 7.5
  • Suitable for aluminium systems
  • No environmental impact

Product Properties

Fprm: Liquid
Colour: Pale orange
Odour: Barely perceptible odour
pH: 7.0 - 7.4
Relative density: 1.12
Solubility in water: Miscible in all proportions

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

Application & Dosage Information


To obtain the best results from Accepta 2509 it is important to ensure the system to be treated is clean, drained and flushed.  If the system is heavily fouled it is advisable to consider thoroughly cleaning the system (Please contact Accepta for advice).

Typical treatment

The general dosing regime is 10 litres of Accepta 2509 per 1000 litres system volume.

The system should be topped up as required based on water losses.

Testing & Control

Test if required to show a minimum of 1000ppm of nitrite within the system.

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

For further technical assistance concerning Accepta 2509 please contact Accepta.

Safety, Storage & Handling

For full details concerning safety precautions, storage and handling procedures for Accepta 2509 please refer to the latest Safety Data Sheet. To download the latest safety data for this product use the following link:

Safety Data for Accepta 2509

World Class Expertise

Accepta work with industry worldwide delivering practical, cost effective solutions to resolve complex problems. If you require technical assistance, or information about our water treatment chemicals and other speciality products, please contact our dedicated technical support team on:

+44 (0) 845 519 89 90 or complete our Technical Support form.

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Develop your skills with our internationally recognised water and wastewater treatment training courses. Delivered by world leading industry experts and designed for engineers, facilities managers and environmental professionals... water treatment training.

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Custom Chemical Manufacturing

Accepta offer custom chemical manufacturing, specialist toll blending and white label production services for our own water treatment chemicals and client specific formulations to UK and international customers.

To discover how you could benefit from our environmentally sensitive, quality driven chemical manufacturing capabilities please call us on +44 (0) 161 877 2334 or contact us.

International Distributor Opportunities

Accepta's innovative, quality driven customer focused business model creates exciting global supply chain and distributor opportunities for established and ambitious businesses currently active within the water treatment, wastewater treatment and environmental services sectors around the world.

If you are interested in becoming an exclusive international distributor of Accepta water treatment technologies please click here to learn more.

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