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EPA Registered Broad Spectrum Micro-Biocide

EPA Registered Broad Spectrum Micro-Biocide

Accepta 6021 is a high performance; EPA registered broad-spectrum microbicide scientifically formulated for the control of microbiological fouling in cooling towers and re-circulating cooling water systems.

Accepta 6021 is designed to control bacteria, fungi and algae, and is US EPA registered for use in cooling water systems.

Accepta 6021 can also be used to control microbiological fouling in re-circulating cooling water systems.

Accepta 6021 is based on a dry blend of two microbicidal actives containing 8% methlene bis (thiocyanate) and 8% 2 - (thiocyanomethylthio) benzothiazole.

Accepta 6021 is available in solid powder form (0.45kg) wrapped in a water soluble bag.

Accepta 6021 is packaged in large plastic pails with screw top lids containing 25 x 0.45kg water soluble bags of product. Water soluble bags are then packaged in “zip-lock” bags, each containing 5 x 0.45kg.

Each pail weighs 11.4kg.

Product Benefits

  • Innovative solid chemical technology
  • High performance micro-biocide
  • Highly effective for the control of bacteria, fungi and algae in cooling towers
  • ControlS microbiological fouling in re-circulating cooling water systems
  • US EPA registered
  • Significant safety improvements
  • Easy to handle, simple to dose
  • Environmentally friendly
  • Reduces carbon footprint
  • Significant space savings

Product Properties

Appearance: Light yellow solid
Odour: Slight organic
Density:  1.03 g/cm3
Flash Point:
>101.7ºC (215.1ºF) (CLOSEDCUP)
Melting/Freezing Point: Not available
Boiling Point:  Not available
Solubility: Dispersible in cold water - dispersible in hot water
pH (Neat): Not available

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

Application & Dosage Information

Accepta 6021 should be fed initially at a rate of 1 – 2 bags (0.45kg) per 7,500 – 19,000 litres of system water until control is achieved.

Once control is achieved feed Accepta 6021 at a rate of 1 bag (0.45kg) per 7,500 – 19,000 litres of system water every 1 - 5 days as required.

Testing & Control

Test kits suitable for monitoring and controlling the use of Accepta 6021 are available from Accepta.


Feed Accepta 6021 to an area of good flow to ensure efficient dispersion into the system. Please note that product dissolution rates will vary depending upon water composition, temperature and flow rate.

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

For further technical assistance concerning Accepta 6021 please contact Accepta.

Safety, Storage & Handling

For full details concerning safety precautions, storage and handling procedures for Accepta 6021 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 6021

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