The Sentinel X100 InstaDose (MPN X100ID-12X250ML-EXP) is Sentinel's pre-measured, ready-to-use dosing solution for delivering X100 Inhibitor protection quickly and cleanly on site. This 250ml pouch comes complete with its own dosing adaptor, so every dose is measured precisely with zero waste and zero mess - no decanting from a bottle, no guesswork on quantity. InstaDose delivers the same TripleTech™ Anti-Corrosion Technology found in standard Sentinel X100 Inhibitor, protecting central heating systems against limescale and corrosion.
100 L System Water
Coverage
Ready-to-Use Pouch + Adaptor
Format
Hard & Soft
Water Suitability
Dosage
250ml of Sentinel X100 InstaDose treats and tops up a typical domestic system of 8 to 10 radiator panels - i.e. 250ml treats 100 litres of system water, a 0.25% dose rate. Larger systems should be dosed with 500ml (a second pouch).
Pre-Treatment Cleaning Required
For best results, systems should be cleaned and flushed in accordance with BS7593 before dosing: use Sentinel X300 for new systems and those up to 6 months old, or Sentinel X400 / Sentinel X800 for existing systems.
Noisy Boiler Note
If the system is already noisy due to limescale deposits in the heat exchanger, Sentinel X200 should be added together with X100 InstaDose rather than X100 InstaDose alone.
Zero Waste, Zero Mess Dosing
This dose is pre-measured in a 250ml pouch with its own adaptor, removing the need to measure out inhibitor from a bulk bottle and eliminating spillage on site.
Same TripleTech™ Protection as X100
Delivers the same TripleTech™ Anti-Corrosion Technology as standard Sentinel X100 Inhibitor - a blend of three heavy-duty specialist corrosion inhibitors targeting different metal types in a multi-metal system.
Ready-to-Use Adaptor Included
Supplied with a ready-to-use pouch and adaptor for quick, direct dosing into the system without additional equipment.
pH-Neutral, Multi-Metal Formula
A pH neutral formulation suitable for all system metals, helping prevent the formation of hydrogen gas and protecting against both corrosion and limescale.
Hard and Soft Water Suitable
Effective in hard, soft and artificially softened water areas, giving consistent protection regardless of local water conditions.
Energy Saving Trust Recommended
Like standard Sentinel X100, InstaDose is an Energy Saving Trust Recommended product, reflecting its role in maintaining boiler efficiency and reducing wasted energy.
| Product Identity |
| Manufacturer |
Sentinel (Sentinel Performance Solutions) |
| Product Name |
Sentinel X100 InstaDose |
| MPN |
X100ID-12X250ML-EXP |
| Range |
Sentinel Inhibitor - X100 InstaDose |
| Pack & Dosage |
| Content |
0.25 L (250 ml) liquid pouch |
| Dosage Rate |
0.25% of system volume |
| System Water Treated |
100 litres per pouch |
| Larger Systems |
500ml (a second pouch) |
| Formulation |
| Chemistry |
Aqueous solution of inorganic and organic corrosion and scale inhibitors |
| pH |
Neutral formulation |
| Water Suitability |
Hard, soft and artificially softened water |
| Technology |
TripleTech™ Anti-Corrosion Technology |
| Application & Compatibility |
| System Types |
All types of indirect central heating system, including aluminium |
| Dosing Method |
Ready-to-use pouch with integrated adaptor |
| Pre-Treatment |
New/young systems: Sentinel X300; existing systems: Sentinel X400 or X800 |
| Noise Complement |
Add with Sentinel X200 if boiler noise present |
How is X100 InstaDose different from standard Sentinel X100 Inhibitor?
InstaDose is the same TripleTech™ formulation as standard X100, but supplied in a pre-measured 250ml pouch with an integrated adaptor for faster, cleaner dosing rather than a bulk bottle.
How much system water does this pouch treat?
This 250ml pouch treats 100 litres of system water - enough for a typical domestic system of 8 to 10 radiator panels. Larger systems should be dosed with 500ml (a second pouch).
Do I need to clean the system before dosing with InstaDose?
Yes, for best results. Use Sentinel X300 on new systems or those up to 6 months old, or Sentinel X400 / X800 on existing systems, before dosing.
Is InstaDose suitable for systems with aluminium components?
Yes, it is suitable for use with all commonly encountered metals and alloys, including aluminium, the same as standard Sentinel X100.
What should I do if my boiler is noisy?
If noise is caused by limescale deposits in the heat exchanger, add Sentinel X200 together with X100 InstaDose.
Does the pouch come with a dosing adaptor?
Yes, each pouch is supplied ready-to-use with its own integrated adaptor, so no separate dosing equipment is needed.
