MC4+® Rapide Leak Sealer
MC4+ Rapide isn’t just powerful – it’s fast too. The high concentration guarantees a strong seal. Because it flows around the entire system, it gets to work even in tough-to-reach places. And with its quick-dose bottle design, 20 seconds is all it takes to add it to the system.
Homeowner benefits
- A simple way to seal small, inaccessible leaks and weeping joints
- Helps avoid costly maintenance repairs
Dosage instructions
Maintain peak performance
With its quick-dose bottle, MC4+ Rapide can be added in just 20 seconds
via a radiator, air vent or the boiler filling loop. However, we always
recommend dosing via a MagnaClean® filter.
Do not use in single feed indirect cylinders.
Installer benefits
MC4® also available
MC4 is available in a 500ml to protect and seal from the inside. It can infiltrate really hard to reach places, reducing the need for a more costly repair.
View productTHE LATEST
MCXS External Leak Sealer
The NEW external leak sealer and jointing compound is your next best friend.
Learn more
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Homeowner Benefits
- A simple way to seal small, inaccessible leaks and weeping joints
- Helps avoid costly maintenance repairs
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How to Videos
RELATED PRODUCT
MC4® also available
MC4 is available in a 500ml to protect and seal from the inside. It can infiltrate really hard to reach places, reducing the need for a more costly repair.
View ProductTHE LATEST
MCXS External Leak Sealer
The NEW external leak sealer & jointing compound is your next best friend.
Learn More
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