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Norstrom Proflush L/L 400 Sludge Remover

Part Number : S045684

205 available at our Central Warehouse
  • Reacts With Cold Water Eliminating The Need to Pre-Heat Your Powerflushing Machine or Central Heating System
  • Removes Sludge and Debris From New and Existing Systems
  • Safe To Use With All Metals and Plastics

Norstrom Proflush L/L 400 Sludge Remover

Long Life 400 is a non-acidic pH neutral sludge remover and the first chemical of its kind to react with COLD water. Specifically designed to remove sludge, scale and debris in both newly fitted and aged central heating systems. This product is for use with or without Powerflushing equipment to restore efficiency to a heating system.

Features and Benefits:

  • REACTS WITH COLD WATER eliminating the need to pre-heat your Powerflushing machine or central heating system
  • Removes sludge and debris from new and existing systems
  • Safe to use with all metals and plastics
  • pH Neutral
  • Ready to use in minutes once mixed with water
  • Non-Acidic
  • Boosts systems efficiency and performance


Long Life 400 can be used to one of two ways:

  1. Long Life 400 can be used alongside a Powerflushing machine to remove sludge and debris from a new or existing central heating system.
  2. Long Life 400 can be introduced directly into the full system by pouring you mixture into the Header Tank, Inline Mag Filter or though the Air Valve of the Radiator.

Long Life 400n 100g sachets once mixed with 1L of water is capable of dealing with up to 100L of system water. (Roughly a 10 radiator system). If a high circulation pump is used, there is no need to dilute the product.

To speed up flushing time use the chemical in conjunction with a Powerflushing machine (preferably our Proflush Professional) by in introducing the chemical into the tank of your machine and flushing round until the system is clear of any sludge or blockages.


Circulate the Long Life 400 by using the system circulator at normal operating temperature for up to 24h depending on the quantity of deposits and build-up of sludge in the system.

Liquid Powder
Appearance Brown Liquid White Powder
Density 1.04g/cm3 (at 20°C)
Apparent Density 600kg/cm3
pH Approx 7
Freezing Point < - 1°C

Technical Specifications

Manufacturer Part Number PF 0234

Frequently Asked Questions

No Product FAQs available.

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