10 Best Leak Sealer Putty for 2026

List of Top Rated Leak Sealer Putty from thousands of customer reviews & feedback.

Updated On August 2026 2309 Reviews Studied By Customer Ratings

Affiliate Disclosure

As an Amazon Associate we earn from qualifying purchases made via links on this page, at no extra cost to you. Rankings are based on independent research and customer feedback.

Evo-Stik 30812665 50 g Plumbers Mait Quick Leak Repair Putty Sealant - Brown

Evo-Stik

Instant repairs for pipes, radiators, tanks and cylinders, sets in minutes
Can be applied to wet surfaces and even underwater
No need to drain the system
When dried it can be drilled, sanded, machined and painted
Bonds to copper, steel, aluminium, fibre glass, acrylic and porcelain

Check Price

Evo-Stik 320123 50g Hard and Fast Metal Epoxy Putty

Evo-Stik

Check Price

Fernox 61016 50ml LS-X External Leak Sealer

Fernox

External Leak Sealer and Jointing Compound
Ideal for use on compression joints and screwed fittings
Never sets rock hard, joints can easily be undone
Ready -to- use, no mixing
WRAS approved product - completely safe to use with drinking water

Check Price

Evo Stik Plumbers Mait Quick Leak Repair Putty 50g Tube

Evo-Stik

Strong, Waterproof, Fast Setting Copper Coloured Epoxy Putty For Instant Repairs To Pipes, Radiators, Tanks And Cylinders
Can Be Applied In Wet Or Damp Conditions And Sets In Minutes, Even Under Water
Can Be Drilled, Sanded, Machined And Painted"

Check Price

Araldite® Repair Putty 50g Tube

Araldite

Huntsman Advanced Materials
ARA-400015 Good
Araldite ARA-400015 Repair Putty Tube, 50 g
Hard long lasting, solvent free multi purpose repair putty
Bonds to most materials. Recommended for metal pipes, tanks, radiators, tools and equipment, guttering and stripped threads.
can be drilled, filled, painted or sanded
Sets in wet conditions
Environmentally friendly product formulation plus eco-friendly packaging for easy recycling.

Check Price

UniBond 2002387 30 g Repair Express Epoxy Putty - White

Unibond

z
6 Ready-to-use 5g mono-doses
Very strong and waterproof
Suitable for indoor and outdoor use (drillable / paintable / sand able)
New non-irritant formula

Check Price

XUDOAI Epoxy Putty Stick, Moldable Epoxy Glue for Crack Damage Fixing Filling or Sealing. Fast Permanent Repair for Meta...

XUDOAI

✔Use to seal pipes, fix leaks in tanks and drains, repair appliances, tools, furniture, toys, automotive parts, pools and cracks in concrete.
✔Bonds to a range of materials, including metal, wood, glass, ceramic, fiberglass, stone, marble and many rigid plastics.
✔Easy to use: Simply cut, hand knead until color become uniform and apply to damaged area then all you do is let It dry.
✔ 0-10 minutes: mixing time, complete kneading and use. 10 minutes to 24 hours: curing time, hardness increases rapidly. After 24 hours: fully hardened and permanently fixed.
✔Please use within a year, after use can be permanently fixed. If you have any questions, welcome to contact us, we will reply to you at the first time.

Check Price