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Calmag H&V Controls HVLS Leak Sealer Heating Systems - 1 Litre

Calmag H&V Controls HVLS Leak Sealer Heating Systems - 1 Litre

This product is ideal for sealing small leaks or weeping joints on all types of indirect central h...

Best current price£8.79from B&Q

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B&QB&Q - H&v Controls Hvls Leak Sealer Heating Systems 1 Litre Bottle
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£8.79
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Product Information

Full details

The Calmag HVLS Leak Sealer is designed for homeowners and maintenance professionals dealing with minor leaks and weeping joints in indirect central heating systems. Its key benefit is providing an easy-to-administer solution that seals these small issues effectively without causing system blockages. A potential caveat is that it is intended for *small* leaks and weeping joints, not major pipe damage. This 1-litre product seals up to 10 radiators, forming a soft seal within 1 to 24 hours.

All features

Model Part NumberHVLS
BrandCalmag

Extended Product Information

FAQs

What type of leaks can Calmag HVLS Leak Sealer fix?

It is designed to seal minor leaks and weeping joints, such as pinhole leaks in pipes or slow drips from valve connections.

How long does it take to work?

A soft seal typically forms within 1 to 24 hours after the product has been added to the system.

Will this product cause blockages in my heating system?

No, the formulation is specifically designed to prevent blockages within the system components.

Can I use this with other chemicals in my heating system?

Yes, it is compatible with other Calmag HV products and other approved treatment products, including system inhibitors.

What is the coverage rate?

One litre of Calmag HVLS Leak Sealer is sufficient to treat up to 10 radiators in a central heating system.

Is it safe for all types of heating systems?

Yes, it is suitable for all types of indirect central heating systems and is safe for all metals, including aluminium.

What should I do if the leak is significant?

Calmag HVLS Leak Sealer is for minor leaks only. Significant leaks or pipe ruptures require professional assessment and repair by a qualified heating engineer.

Troubleshooting

Leak persists after 24 hours

The leak may be larger than a minor weep or pinhole. Ensure the correct dosage was used and that the product has had sufficient time to work. For larger leaks, professional intervention may be required.

System pressure drops unexpectedly

Check for any other potential leak sources. Ensure the Calmag HVLS Leak Sealer was properly dispersed. If the issue persists, consult a heating engineer.

Product seems difficult to add to the system

Ensure you are using a suitable filling point. If the product viscosity is higher than expected, the ambient temperature might be low; gently warming the product before use may help (do not overheat).

Pros and Cons

Pros

  • Effectively seals small leaks and weeping joints.
  • Easy and straightforward application process.
  • Designed to prevent blockages, safeguarding system components.
  • Compatible with other heating system treatments and Calmag products.
  • Safe for all common heating system metals, including aluminum.
  • Non-toxic and non-irritant for user safety.

Cons

  • Only suitable for minor leaks and weeping joints, not major pipe ruptures.
  • Requires a 1-24 hour period to form a seal.
  • Effectiveness on very old or severely corroded systems may vary.

Setup, Compatibility & Care

Setup:

  1. Ensure the heating system is operational and warm (not hot).
  2. Calculate the required dosage based on the system's radiator count (1 litre treats up to 10 radiators).
  3. Add the calculated amount of Calmag HVLS Leak Sealer directly into the heating system via a suitable filling point, such as a radiator valve or filling loop.
  4. Ensure the product is fully dispersed within the system.
  5. Allow 1-24 hours for the soft seal to form.

Compatibility:

  • Compatible with all types of indirect central heating systems.
  • Works with other Calmag HV products.
  • Compatible with other approved heating system treatment products and inhibitors.
  • Safe for use with all metals including aluminium.

Care:

  • Store in a cool, dry place away from direct sunlight.
  • Keep out of reach of children.
  • While non-toxic and non-irritant, avoid prolonged skin contact and wear gloves if concerned.

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