X500 Inhibited Antifreeze

Provides protection against scale and corrosion in all types of indirect heating systems, including those containing aluminium components, whilst preventing freezing. It is effective at preventing hydrogen gas production.

For best results, systems should be cleansed and flushed new systems and those up to 6 months old with Sentinel X300, existing systems with Sentinel X400.

The dosage of Sentinel X500 inhibited antifreeze will depend on the level of frost protection required. Five gallons of Sentinel X500 antifreeze added to a typical residential system up to 25 gallons will provide the minimum concentration of corrosion and scale inhibitor and also protection from freezing down to approximately 20°F.

This product is not suitable for heat transfer circuits of solar energy collector panels in which temperatures may exceed 392°F or be subject to periods of stagnation.

Features and Benefits

  • Prevents freezing
  • Enhanced scale & corrosion protection
  • Protects all system metals
  • Ensures optimum boiler efficiency
  • Prevents boiler noise
  • Prevents pin-holing
  • Helps prevent the formation of hydrogen gas
  • A simple test kit is available to check levels

Packaging

  • 5 Gal. jug
  • 55 Gal. drum
  • 275 Gal. tote

Applications

Sentinel X500 is a multipurpose inhibited antifreeze formulated to help control corrosion, scale, boiler noise and hydrogen gassing in all types of indirect heating systems including those containing aluminium components. This product is not suitable for heat transfer circuits of solar energy collector panels.Sentinel X500 is suitable for use in all waters, both hard and soft. The low toxicity formulation is colourless and easy to handle.

Dosage
Five gallons of Sentinel X500 added to a typical residentail system of up to 25 gallons will provide the minimum concentration of corrosion and scale inhibitor and also protection from freezing down to approximately 20°F. The Sentinel X100 Quick Test Kit can be used to verify that this level has been reached. To determine the precise glycol concentration, a refractometer is required.

For best results, systems up to 6 months old should be cleansed and flushed with Sentinel X300.

Existing systems with Sentinel X400.

If the system is already noisy due to deposits in the heat exchanger, Sentinel X200 should be added together with Sentinel X500.

Feeding
Open Systems: Dose vie F&E cistern, via a by-pass feeder or use a dosing vessel.
Sealed Systems: If the system is empty, add to any convenient point before filling. If full use a dosing vessel to inject via the filling loop or other access point.

Physical properties
Appearance: Clear colorless liquid
Odor: Mild slightly sweet
Specific Gravity: 1.05 (68°C)
pH in aqueous solution (5%): 6.5 (approx.)
Freezing point: -72°F


Safety Information

Sentinel X500 Inhibited Antifreeze for Central Heating Systems
A solution of inorganic and organic corrosion and scale inhibitors in propylene glycol.

Health Hazards
Not for use in potable water systems
Considered hazardous by OSHA Hazard Communication: 1910.1200, Standard - 29 CFR

Handling
Keep out of the reach of children.
Avoid contact with skin and eyes.
Wash out empty container thoroughly with water before disposal

Storage
Keep container tightly closed
Store in cool, well ventilated area

Spillage
Flush spillage with plenty of water and wash to waste
On soil: Absorb on to inert material and dispose of according to Controlled Waste Regulations.

Fire/Explosion Risks
Non-flammable. Oxides of carbon and nitrogen evolved in fire.


First Aid

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

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

Ingestion
Rinse mouth with water
Do NOT induce vomiting!
Seek medical attention


FAQs

Can I protect to temperatures lower than 20°F?
Protection from temperatures lower than 20°F can be achieved by adding extra Sentinel X500. A dose of 40% of system volume will provide protection in a typical system to -3°F. Further information is available on the Technical Data Sheet.

How do I get Sentinel X500 into the system?
In open Systems: dose via the F&E cistern, via a by-pass feeder or use a dosing vessel.
In sealed systems: if the system is empty, add to any convenient point before filling. If full, use a dosing vessel to inject via the filling loop or other access point.

Can Sentinel X500 be used in areas with hard water?
Sentinel X500 is suitable for use in all types of municipal supply water, from very soft to very hard.

Options and Accessories

X100 Quick Test Kit
The Sentinel X100 Quick Test is a quick and easy way to check the level of Sentinel X100 inhibitor in a central heating system. This disposable test kit contains sufficient reagents to test a system twice.

Technical Documents

Literature and Performance Data

MSDS (Molybdate No. 1 Tablet)

pdf 111.33 KB | December 30, 2015

MSDS (Molybdate No. 2 Tablet)

pdf 127.32 KB | December 30, 2015

Test Kit Technical Data Sheet

pdf 108.02 KB | December 30, 2015

Water Quality in Hydronic Systems

pdf 194.03 KB | December 14, 2015

X500 Material Safety Data Sheet

pdf 83.09 KB | December 14, 2015

X500 Technical Data Sheet

pdf 117.18 KB | December 14, 2015

Sizing and Application Guidelines

Controlling Aluminium Corrosion

pdf 84.12 KB | December 14, 2015

Water Treatment for Condensing Boilers

pdf 86.88 KB | December 14, 2015