Fungicide, bactericide, algaecide, and molluscicide Oxidising Biocide – 6403

Accepta 6403 is available in 3.0kg HDPE jars (4 x 3.0kg jars per case).

Description Below


Accepta 6403 is a Bromine based oxidising biocide used in controlling the growth of bacteria and algae in industrial recirculating cooling water systems & other process water systems.

Accepta 6403 is a fungicide, bacteriacide, algaecide, and molluscicide for recirculating and once-through water systems.

Accepta 6403 is recommended to control bacterial, fungal, and algal slimes in evaporative condensers, recirculating cooling tower systems, influent systems, industrial wet scrubber systems, sewage systems, auxiliary water systems, photo processing wash water, air washers, and brewery pasteurizers.

Published studies show that the combination of free and combined halogen provided by Accepta 6403 is more efficacious toward biofilm than either free chorine or free bromine alone.

The increased stability of the combined halogen in systems with high halogen demand allows greater diffusion into the biofilm without losses due to unwanted side reactions. Chlorine & Bromine have proven efficacy against pathogenic microorganisms including Legionella, at levels required by the system, HSE ACoP L8, HS(G) 274, system water type, along with risk assessment data.


The exact dosage and control rates for using Accepta 6403 will vary depending on system conditions and local regulations.  Contact your Consultant for further guidance.


Appearance:                 Solid Granular –Off White

Odour:                         slight stinging

pH:                               3.67@ 10g/l (25°C)


Accepta 6403 should be stored in a cool (<25°C), dry area. Properly stored, the product will remain effective for 24- 36 months. Consult Safety Data Sheet for further information.


Accepta 6403 is a solid product. In the unlikely event of a spillage, do not allow to enter water course or drains. Small spillages – dilute with plenty of water and wash to waste.


Accepta 6403 is available in 3.0kg HDPE jars (4 x 3.0kg jars per case).


Feed Accepta 6403 using an Accepta board 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 6403 please contact Accepta.

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