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Organic Closed Loop Treatment for Corrosion Protection

Organic Closed Loop Treatment for Corrosion Protection

Accepta 2621 is a high performance water treatment chemical developed for the protection and treatment of closed loops.

Accepta 2621 is totally organic based blended corrosion inhibitor formulation designed for use in closed loop systems.

Accepta 2621 can be used in low and medium pressure hot water systems, and in those containing aluminium.

Product Benefits

  • High performance totally organic corrosion inhibitor for closed loop systems
  • Ideal for high low/medium pressure hot water systems
  • Ideal for systems containing aluminium
  • Convenient liquid product

Product Properties

Form: Liquid
Colour: Clear, pale yellow
pH (neat): 8.2 - 9.2
Specific Gravity: 1.03 - 1.07

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

Application & Dosage Information

Target dosage range is 100 to 150 ppm as HPA (60 to 90 ppm as PO4) in system water.

Dosage Strategy

Accepta 2621 should be dosed at 0.5 to 0.75% or 5.0 to 7.5 litres/m3 to achieve the optimal corrosion protection and scale inhibition.

Performance Monitoring

Appropriate use of Accepta 2621 following the above dosing strategy should result in a corrosion rate of less than 2mpy.

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

For additional assistance please contact Accepta.

Test Methods

  • Phosphonate/ Alkalinity - Titration
  • Phosphonate/ Alkalinity - UV photolysis + colour disc

Material of Compatibility

Material Comments
SS : Recommended
MS : Recommended
PE : Recommended
PP : Recommended
PVC : Not recommended
Teflon : Acceptable

Safety, Storage & Handling

Accepta 2621 is an alkaline solution. Avoid contact with skin, eyes or clothing. If skin comes into contact with this product, wash with water. If eyes are affected, flush with water for at least 15 minutes and get medical attention.

For full details concerning safety precautions, storage and handling procedures for Accepta 2621 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 2621

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