United States
Australia
Česko
Danmark
Deutschland
Eesti
España
Ελλάδα
France
Ireland
Hrvatska
Italia
Latvija
Lietuva
Magyarország
Nederlands
New-Zealand
Norge
Polska
Portugal
România
Schweiz (Deutsch)
Slovenija
Slovensko
Suomi
Sverige
United Kingdom
България
Canada (Français)
Money-Back Guarantee
Express Delivery
Secure Payment
Seals all boiler leaks quickly and permanently. Our boiler leak sealer liquid is specially engineered to seal all types of small and micro leaks within central heating systems, including pipes, radiators, joints, and heat exchangers. It circulates with the system water and automatically locates leak points, forming a durable internal seal without the need for dismantling.
The most effective internal leak sealing solution available. Thanks to its advanced self-sealing polymer technology, this formula reacts precisely at the point of water loss, creating a strong and flexible seal that withstands pressure and temperature variations inside the heating system.
The cheapest professional-grade repair alternative. We offer the most competitive price on the market, allowing you to avoid costly plumbing repairs, pipe replacements, or emergency technician call-outs. You achieve reliable results at a fraction of traditional repair costs.
24-hour delivery for urgent leak situations. We guarantee 24-hour delivery so you can act immediately when facing pressure drops or visible water leaks. Fast shipping helps prevent further damage and minimizes downtime.
Money-back guarantee for total peace of mind. We offer a full money-back guarantee. If you are not completely satisfied with the performance of our boiler leak sealer liquid, we will refund your purchase. Your order is entirely risk-free.
Works without dismantling or draining the system. The liquid is added directly into the heating circuit and works while the system operates normally. There is no need to remove pipes, radiators, or boiler components, saving time and labor.
Compatible with most central heating systems. Suitable for standard boilers, combi boilers, radiators, underfloor heating systems, and sealed systems, the formula is designed to work safely with common heating materials including steel, copper, aluminum, and plastic components.
Maintains system pressure and prevents recurring leaks. By sealing leak points internally, the product helps stabilize pressure levels and reduce the need for constant refilling, protecting the system from corrosion caused by repeated oxygen intake.
Resistant to high temperature and pressure. The formed seal remains stable under typical boiler operating temperatures and pressures, ensuring long-lasting performance even under demanding heating conditions.
Extends the lifespan of your heating system. By stopping leaks early and preventing water damage or corrosion, the product protects internal components and helps prolong the overall life of your boiler and heating installation.
Instructions
- Turn off the boiler and allow the heating system to cool before adding the product.
- Shake the container thoroughly before use to ensure proper mixing of active components.
- Locate a suitable dosing point such as a radiator, filling loop, or system filter access point.
- Add approximately 500 ml of product for an average domestic heating system of up to 100 liters of water capacity. Adjust the dosage proportionally for larger or smaller systems.
- After adding the liquid, restore system pressure if necessary according to the boiler manufacturer’s recommendations.
- Switch the boiler back on and allow the system to circulate at normal operating temperature for at least several hours.
- The product will circulate throughout the system and automatically seal leak points as it comes into contact with escaping water.
- Monitor system pressure over the following 24 to 48 hours to confirm stabilization.
- If necessary for larger systems or persistent micro leaks, a second proportional dose may be added.
- Store the product in a cool, dry place and keep out of reach of children.
Dieses Produkt ist sehr empfehlenswert, um Lecks in der Zentralheizung abzudichten.
My boiler had been oozing for months, but this magic product solves everything! Easy to use, recommended to all heating galley dwellers.
My husband used a top tip for the leaks in our boiler. It works like a charm, no need for a plumber!
Great product, So far, no leaks. that’s what i expected. Thanks a lot for the product.
Finally, an acid-free sealant that repaired our boiler without causing any issues. Kudos for this innovation!
Wir haben das Produkt risikofrei getestet, und es hat unsere Erwartungen übertroffen.
Até o alumínio está coberto! Nossa caldeira possui componentes de alumínio, e este vedante tem feito maravilhas. Altamente recomendado para todos os tipos de metais.
Livraison rapide, produit impressionnant ! Colmaté toutes les fuites, et notre chaudière fonctionne comme neuve. Satisfait à 100%.
La nostra caldaia in lega funziona alla perfezione grazie a questo tappo. Grazie!
No solo selló las filtraciones, sino también las juntas de sellado defectuosas. Una solución completa para nuestro sistema de calefacción.
Un véritable sauveur ! Mon chauffage fonctionne comme neuf après l’application de ce colmatant. Adieu les fuites indésirables !
Even for novices like me, the application was a piece of cake. Successful sealing, boiler saved!
Onze centrale verwarming werkt op een indirecte manier, maar dit product heeft al onze lekproblemen opgelost. Geweldig!
Unübertroffen in Bezug auf Leistung! Ich hatte Zweifel, aber dieses Produkt hat bewiesen, dass es der beste Abdichtung auf dem Markt ist.
Ele resolveu os meus problemas de vazamentos em um piscar de olhos. Estou impressionado com a sua eficácia e facilidade de uso.
Avant, notre chaudière fuyait constamment, mais ce produit de colmatage a résolu le problème rapidement. Une efficacité exceptionnelle !
Contrariamente ad altri tappi, questo non ha causato problemi aggiuntivi. La nostra caldaia funziona senza intoppi dall’applicazione.
Geen behoefte aan speciale gereedschappen, de toepassing was eenvoudig en het resultaat is een lekvrije ketel. Wat wil je nog meer?
99.9% success rate confirmed! This product saved our boiler with incredible efficiency. I highly recommend it.
¡Adiós a las preocupaciones por las fugas! Este producto es un verdadero salvador para los propietarios de calderas. Resultados rápidos e impresionantes.
Suporte ao cliente excepcional! Eles foram úteis em cada etapa, desde a escolha do produto até sua aplicação.
Een zuurvrije dichtingsvloeistof die zijn beloften nakomt! Mijn ketel lekte en nu lijkt het alsof het probleem nooit heeft bestaan.
Nenhum outro produto se compara a este vedante. Os meus vazamentos estão consertados, e a minha caldeira está funcionando melhor do que nunca.
Deze lekstopvloeistof heeft me behoed voor dure reparaties. Mijn verwarming is nu betrouwbaar dankzij dit wondermiddel.
Mi caldera funciona como si fuera nueva después de aplicar este sellador.
Eine schnelle und effektive Lösung für undichte Stellen an meiner Heizung.
La colmatura ha salvato la mia caldaia da una morte certa. Un’applicazione semplice, risultati impressionanti.
Raccomando vivamente questo prodotto. I risultati parlano da soli: perdite riparate, caldaia in perfette condizioni di funzionamento.
Ce produit incroyable a résolu mes problèmes de fuites sans endommager la chaudière. Satisfaction garantie à 100%.
Effective and safe! I’ve tried other products, but this one is the only one that repaired leaks without causing additional problems.