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Waterproof Leak & Crack Sealant

Stop Leaks Instantly. Seal Them For Good.

A rubberized spray coating that dries into a flexible, watertight barrier over cracks, holes and joints — on roofs, gutters, pipes and more.

⚡ Instant Seal 🌧️ All-Weather 🎨 Paintable Finish
Waterproof sealant spray forming a watertight coating over a crack
Why It Works One coat forms a tough, flexible rubber membrane that grips the surface and locks water out.
💧Instant Leak SealQuickly seals cracks, holes and punctures for immediate relief.
🧬Flexible Rubber CoatDries into a watertight rubberized layer that moves with the surface.
🌡️All-Weather HoldBuilt to take summer heat and winter cold without sagging or cracking.
🛡️Corrosion GuardShields the surface underneath and extends the life of the repair.
Sealing a leaking terrace roof joint after the rains
Where You Can Use It Indoors or outdoors, on almost any surface that springs a leak.
🏠Roofs & TerracesCracked joints, shingles and metal roofs.
🚰Pipes & GuttersDrainage joints, downpipes and gutters.
🧱Walls & ConcreteConcrete, wood, metal and plastic surfaces.
🪟Chimneys & SkylightsFlashings, skylights and vent surrounds.
Sealing a leaking indoor pipe joint
From a dripping, stained ceiling to dry and sealed — in one afternoon.
Before and after: leaking ceiling versus dry sealed ceiling
How To Use No tools, no professional needed — just clean, dry and spray.
1Clean & DryMake sure the surface is clean and completely dry for the best grip.
2Shake & SprayShake the can well, then spray an even coat directly over the crack or hole.
3Let It CureIt sets to a semi-smooth, firm black finish within a few hours. Add a second coat over large gaps.
Point. Spray. Sealed.
Hands spraying the sealant onto a crack
Made To Last One 450ml can, a genuinely durable finish, and a coating you can paint over to match your surface.
🧴 450ml Can 🖌️ Paintable Black Finish 🔗 Sticks To Most Surfaces
450ml sealant can held in hand showing real size and cured finish
Us vs Ordinary Fixes Why a rubberized spray beats tape, putty and a call to the handyman.
  This Sealant Ordinary Fix
Application Point & spray Messy, fiddly
Finish Flexible rubber coat Stiff, can crack
Weather Heat & cold resistant Peels over time
Surfaces Concrete, metal, wood, plastic Limited
Paintable Yes, once dry Often not
Close-up of the durable watertight sealant coating
Beat The Next Leak Before It Starts Keep a can ready and seal cracks, holes and leaks the moment they appear — indoors or out. Seal It Today
Feature breakdown: instant seal, all-weather flex, sticks to anything, paintable
Frequently Asked Questions
What surfaces can I use it on?+
It works on a wide range of surfaces including concrete, plastic, wood, metal, shingles, metal roofs, chimneys, skylights and gutters — indoors and outdoors.
How long does it take to dry?+
It begins setting quickly and dries to a semi-smooth, firm finish within a few hours. Full curing depends on temperature and humidity.
Will it work on large cracks and holes?+
Yes. It sinks into cracks and holes to form a watertight, flexible coating. For very large gaps, a second coat gives the best result.
Can I paint over it?+
Absolutely. Once dry, the black finish can be painted over with latex or alkyd-based paints to match your surface.
How should I store it?+
Keep the can in a cool, dry place away from direct sunlight, and make sure the surface is clean and dry before you apply.
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