Sodium Hydroxide Alkalinity Builder for Boilers – 6302


Available as cases of 4 x 5.54kg jars

Can be dosed using an Accepta Ultra Dissolver Board

Description below


ACCEPTA 6302 Alkalinity Builder

Accepta 6302 is a treatment containing a solid form of Hydroxide & Carbonate Alkalinity.  When added to water systems, it increases the alkalinity.  The product is especially suited for raising the alkalinity in boiler feedwater with make-up waters low in alkalinity such as RO water.

Accepta 6302  contains only ingredients approved under the United States Food & Drug Administration Regulations Title 21, Section 173.310 Boiler Water Additives.


When used in a dissolving system, a solution strength of approximately 10 – 20% will be attained in the reservoir.

A control limit of between 250 – 600ppm of P Alkalinity is advised.


Appearance:                 Solid – White/off white

Odour:                         mild

pH:                               ~ 13.5  @1%


Accepta 6302  should be kept away from acids and oxidising agents in a cool dry area.  Properly stored, the product will remain effective for 24 – 36 months.  Consult Safety Data Sheet for further information


  • Accepta 6302: 4 x 5.45kg Bottles


Feed Accepta 61302 using an Accepta board system.

Available in three types:

  • Gravity Fed – No pump needed, requires controller relay or timer
  • Electronic Level Control – Pump needed
  • Mechanical – Pump needed

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

For further technical assistance concerning Accepta 6302please 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