X100 Inhibitor X200 Noise Reducer X300 System Cleaner X400 System Restorer X500 Inhibited Antifreeze X700 Sanitiser and Biocide X800 Jetflo Ultimate Cleaner X900 Filter Aid Deposit Remover Leak Sealer Seal X Joint & Leak Sealer

X800 Jetflo Ultimate Cleaner

Key Features
TripleTech™ Technology
Using X800
Safety Information

Sentinel X800 Jetflo Ultimate Cleaner 

A heavy duty cleaning formulation designed to remove corrosion deposits and scale from boiler heat exchangers, radiators and pipework in domestic central heating systems.  

It has been developed especially for use with power flushing machines. Sentinel X800 Jetflo cleaning solution is compatible with all commonly encountered metals and alloys, including aluminium. Although effective when used in conventional gravity/circulation cleaning cycles, the product's full benefits are achieved when used in conjunction with a powerflushing machine such as Sentinel's Jetflush

A powerful, highly active cleaning agent for use in central heating systems, it will remove objectionable iron oxide and calcium based deposits from heat exchangers, radiators and pipe work. Its unique composition allows Sentinel X800 Jetflo to act as a penetrating dispersant under neutral pH conditions, eliminating the need to clean with conventional acids and the problems associated with them. The formulation also contains agents to help protect metal from corrosion.

Here's what one customer says: 

"My view is that if something's not broken, why fix it? We've been using Sentinel's X800 Jetflo (formerly known as Ferroquest) to clean out really caked up systems in domestic properties for many years now and we've never had a problem with it so we don't see any reason to change it. We have tried similar products in the past but have never found them to be as good, which is no surprise as Sentinel is the market leader."

  • Powerful removal of all major foulants and debris
  • For all systems, old or new, hot or cold
  • Ideal with or without power flushing
  • Exceptional results when power flushing
  • Harmless to the environment, completely non-toxic and biodegradable

TripleTech™ Technology

X800 Jetflo contains TripleTech™ Power Clean Technology, a unique formula with 3 different chemical technologies which penetrate and attack system scale and corrosion debris, dissolving into a 'ready to flush' solution, whilst leaving a long lasting anti corrosion surface protection.
X800 Jetflo with TripleTech™ Power Clean Technology is a powerful, highly active cleaning agent.  Its unique composition allows Sentinel X800 Jetflo to act as a penetrating dispersant under neutral pH conditions, eliminating the need to clean with conventional acids and the problems associated with them. The formula also contains agents to protect metals from corrosion. 

The technology helps our products to outperform our closest competitors. 

TripleTech Clean

Sentinel X800 Jetflo is suitable for use with all commonly encountered metals and alloys.  


1 Litre bottle 


A 1 litre bottle of Sentinel X800 Jetflo is sufficient to clean a typical system of up to 10 radiators. For larger systems, 2 litres of product should be used. Where systems are badly fouled, a higher concentration is recommended, i.e. 2 litres of Sentinel X800 Jetflo in a typical system, though the product will not clear a completely blocked pipe.  

To clean an existing system in accordance with BS7593:2006 it is strongly recommended that Sentinel X800 Jetflo is used with power flushing equipment which will provide a more rapid and effective clean. In such case, Sentinel X800 Jetflo will be administered via the power flushing equipment (follow equipment manufacturer's instructions). Alternatively, Sentinel X800 Jetflo should be circulated, preferably at normal operating temperature, with all valves open and the pump turned to maximum flow for a minimum period of 1 hour or until satisfactory performance is restored.  

After cleaning, the system should be drained and flushed until the water runs clear. On refilling, the system should be treated with Sentinel X100 Inhibitor, or Sentinel X500 Inhibited Antifreeze.  


Powerflushing: Follow the instructions supplied with the powerflushing machine.
Open Systems: Dose via F&E cistern, via a by-pass feeder or use a Sentinel Dosing Vessel.
Sealed Systems: If the system is empty, add to any convenient point before filling. If full, use a Sentinel Dosing Vessel to inject via the filling loop or other access point.  

Physical properties:

Appearance: Beige/Tan dispersion 
Specific gravity:1.15 (20°C) 
pH (concentrate): 6.5 (approx) 
Freezing point: -4°C  


The information provided below enables compliance with the Control of Substances Hazardous to Health Regulations. A Safety Data Sheet is available upon request.  

Sentinel X800 Jetflo Ultimate Cleaner 

For Domestic Central Heating Systems
An aqueous emulsion of dispersants, wetting agents and corrosion inhibitors  

Health Hazards 



Avoid contact with skin and eyes.  

Keep out of the reach of children. 

Avoid contact with skin and eyes. 

Wear suitable protective clothing, gloves and eye/face protection.

Keep out of reach of children and animals. 

Wash out empty container thoroughly with water before disposal.  


Keep container tightly closed. 

Store in cool, well ventilated area. 

Avoid freezing. 


Absorb on to inert material and dispose of according to Special Waste Regulations. 

Fire/Explosion Risks 


First Aid:  

Skin Exposure

Immediately remove all contaminated clothing. 

After contact with skin, wash immediately with plenty of water. 

Wash exposed area immediately with plenty of soap solution or water for 15 minutes. 

Eye Exposure

In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 

Flush immediately with plenty of running water for 15 minutes.

Seek medical attention. 


Do not feed anything by mouth to an unconscious or convulsive victim. 

Do NOT induce vomiting! 

Immediately seek medical advice. 

If victim is fully conscious dilute contents of stomach using 3-4 glasses of water. 


Remove victim from contaminated area to fresh air. 

Apply appropriate first aid treatment as necessary. 

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Sentinel Performance Solutions Ltd | The Heath Business & Technical Park | Runcorn | Cheshire | United Kingdom | WA7 4QX | 01928 588 330