Provides protection against scale and corrosion in all types of indirect heating systems, including those containing aluminum 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 and 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 aluminum 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 colorless and easy to handle.

Dosage

Five gallons of Sentinel X500 added to a typical residential 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.

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.