Top 8 Radiator Repair sealant UK – Sealers

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Tanks & Cylinders, 50g, Instant Repairs for Pipes, Radiators, Waterproof, EVO-STIK Plumber's Mait Quick Leak Repair Putty

EVO-STIK - Ideal for bonding to copper, fibre glass, brass, steel, aluminium, acrylic and porcelain. Strong, radiators, waterproof and fast setting epoxy putty designed for long lasting emergency plumbing repairs to leaking pipes, tanks and cylinders. Can be applied to damp or wet surfaces, Waterproof and chemical resistant, Resists temperatures up to +150°C. Easy to apply - when dried it can be drilled, sanded, machined and painted. Contents: 1x evo-stik plumber's Mait Quick Leak Repair Putty, 50g.
Height20.3 cm (7.99 Inches)
Length11.4 cm (4.49 Inches)
Weight0.05 kg (0.11 Pounds)
Width3 cm (1.18 Inches)
Part Number30812665
WarrantyNo guarantee

2. CosWarm

Stops Leak, Treats Up to 18 Radiators, CosWarm CW4 Central Heating Leak Sealer, Stops Minor Leaks & Weeps, Fixes Pressure Loss & Leaking Pipes, Boiler Leak Repair & Sealant

CosWarm - It does not interfere with the working of your central heating systems and you won’t have to shut down the systems before or while using it. Super concentrated formula: our boiler and central heating system leak stopper can treat up to 18 single radiators, i. E. A 150-litre system.

Convenience at its best: our leak sealer and stopper makes minor repairs in the boiler a breeze. Harmless for metals: there are many leak sealant chemicals that are not friendly when they come into contact with metals. Cw4 leak sealer liquid is suitable for use with all the metals and materials, including steel, ferrous metals, copper and aluminium. The product can be left in the system permanently. It is easy to use, just pour it in the system according to the instructions and let it work. Our boiler leak sealant also helps in fixing pressure loss due to minor leaks from central heating systems.

Safe for you, chemical formulas. As it is biodegradable, the boilers & the environment: our non-toxic radiator leak sealer is a safer alternative compared to other toxic, it won’t harm Mother Nature either. Safe to use around people, the environment and your heating systems. Stops small leaks & fixes pressure loss: cw4 leak sealer seals all the small and inaccessible leaks, thus saving time and money in draining down and repairing cost.
Part NumberCosWarmCW4


White, Enamel Repair for Kitchen Appliances, Bathrooms, Metals, Fridges, Radiators, Showers & Sinks, 20ml, JENOLITE Kitchen & Bathroom Enamel Repair + Touch Up Paint

JENOLITE - Bathroom & Kitchen Enamel Repair. Suitable for use on – porcelain,, Fibreglass, Acrylic, Ceramic, Enamelled Cast Iron and Steel. A quick drying, long lasting, enamel formula provides the ultimate smooth white finish. Made in Great Britain. Instantly fix scratches and Chips on Radiators, Baths, Ovens, Fridges, Showers and Sinks. Touching up scratches, defects & minor damages on kitchen, bathroom fixtures and appliances.

4. Polar Specialist Coatings

400ml, Ideal for Drain & External Pipe Leaks & Cracks, Tough Waterproof Sealant, Polar S1 Superior Clear Leak Sealer Spray, Instant Repair & Long Lasting Protection, Interior & Exterior Use

Polar Specialist Coatings - Instant waterproof - polar leak sealer spray provides an instant waterproof seal with excellent resistance to weathering and a high covering power. Plastic and external drain pipe sealant. Our leaksealer offers high performance, long-term waterproof & corrosion protection. Our easy to apply formula delivers instant protection, with our waterproofing spray that gets to work right away.

Multi-purpose use for interior & exterior surfaces - can be used on interior and exterior surfaces to seal fine leaks and cracks for a wide variety of applications such as metal, gutters, wood, roofs, ceramics, plastic, PVC, external drain pipes and much more. Our leak sealer comes in a variety of colours; Clear, White or Black. Stop leaks fast, external pipes & windows. Allow 24 hours to dry, without compromising on the quality and performance. Apply a minimum 2-3 coats, for maximum paint hardness.

Long lasting protection - specifically designed with a rubberised protective formula. Easy to use - the spray formulation makes leak sealer easy to use and ideal for application on all outdoor repair work, leaving 10-15 minutes between applications. Not only gives instant repair to leaks and cracks, but also provides a long lasting protection. For emergency fixes - quickly and easily repair cracks and leaks on gutters, which is ideal for emergency work on a wide range of surfaces. Effective against window and external water pipe leaks & cracks.
BrandPolar Specialist Coatings
ManufacturerPolar Protective Products
Height18 cm (7.09 Inches)
Length18 cm (7.09 Inches)
Weight0.34 kg (0.75 Pounds)
Width7 cm (2.76 Inches)
Part NumberLEAKSEAL1209

5. Technicoll

Black HIGH Temperature Silicone Adhesive SEALANT 20ml Heat Resistant 300'C New

Technicoll - Creates 100% rubber which leaves flexible at temperatures - 60ºC up to up to + 300ºC. High quality black sealant 300ºc heat resistant. Uv radiation, petrol, changing weather conditions, oils, cooling liquids, and water. Mineral products, marble, stone, concrete etc. Replaces different kind of gaskets resistant to. Perfectly bonds to all smooth metal surfaces, alloys and casts glass, wood, ceramics, plastic, .
Part NumberFO-C0DU-2R8G_SML

6. VELCRO Brand

Araldite Repair Putty, 50g Tube. Hard Long Lasting Bonding Putty for Durable Bonding and Repairs, Extremely Hard Setting Filler Solution with High Temperature Resistance

VELCRO Brand - Hard setting filler; a solvent-free, filled, multi-purpose repair putty for durable bonding and repairs that can be drilled, painted, or sanded; This is perfect as a sealant or for craft kits and complicated jobs. Tough epoxy adhesive; this epoxy putty will create a tough and durable bond that can withstand high temperatures -40°C to 120°C, rough handling, and can be sanded and painted after 72 hours; Do not use as a rear view mirror adhesive.

Multi-purpose putty; made to create a strong bond that will last, radiators, tanks, this plastic cement putty is suitable for most materials and recommended for metal pipes, tools and equipment, guttering, and stripped threads. Nature-friendly universal gap filler; environmentally friendly formulated two part epoxy putty with easily recyclable packaging; Store the sealer and adhesive putty stick in the plastic blister after use and keep in a dry place at room temperature.

Easy to use; clean and dry both surfaces, cut off the required amount of putty, apply to the surface and work in gaps; For optimal bonding, activate by kneading the putty until streak-free gloves recommended, slightly roughen surface.
BrandVELCRO Brand
ManufacturerVelcro Ltd
Height10.16 cm (4 Inches)
Length2.54 cm (1 Inches)
Weight0.07 kg (0.15 Pounds)
Width7.62 cm (3 Inches)
Part NumberARA-400015

7. Pro-Kleen

Transparent & Long-Lasting Formula, Instant Emergency Repair 400ml, Pipes, Tough Leak Sealant Spray for Roofs, Guttering & More, Pro-Kleen Instant Waterproof Sealant Spray

Pro-Kleen - Whether you’re needing to fix a leaking roof or window – this is the product for you! Safe for a variety of surfaces: this versatile formula is suitable for using on guttering, windows, pipework, drains, roofs and other leaking areas. This means you can use it on with complete peace of mind.

It’s an easy to use formula that’s perfect to use for emergencies when you need to stop leaks quickly. Remains flexible and pliable for years to come: Once dry, this sealant spray remains flexible and pliable for years to come! The formula is super long-lasting to prevent drips and leaks from returning after use. Waterproof formula: the watertight formula dries completely waterproof. Stops leaks and drips: our easy to use sealant spray stops leaks and drips with ease. Use our pipe sealant spray for a quick and easy fix for those pesky leaks and drips on a variety of indoor and outdoor surfaces.

Whether you have a leak in your guttering, drain and much more, pipework, this Pro-Kleen leak sealer provides a trustworthy and easy solution to seal the leak quickly and efficiently. Transparent formula: there’s no need to worry about Pro-Kleen’s sealant spray leaving behind an unappealing mark as it dries completely transparent. It’s super tough and robust, making it perfect for indoor and outdoor use.
Part NumberMYINSWP400


JENOLITE Stop Leak Sealer Spray, Fills, Seals & Stops Leaks, 400ml, BLACK, Waterproof sealant

JENOLITE - Completely waterproof and corrosion resistant surface. Suitable for the quick repair of guttering, windows, drains, pipework, roofs and other leaking areas. Remains flexible & pliable for years after use. Waterproof seal stops leaks and drips fast. Dries to create a waterproof seal.
Part Number89090
ModelBlack 1