SealPRO™ | Transparent Waterproof Anti-Leak Resin

It's built to be a lasting fix, not a botch job. Once cured, SealPRO™ forms a flexible, fully waterproof barrier rated for up to 10 years, holding through gales, frost and heavy rain.

Unlike thick opaque coatings that shout "patched up" and can put buyers off at resale, SealPRO™ dries completely invisible, so it fixes the leak without leaving a mark on the surface.

This is exactly where it shines. When you can't find the precise entry point, you can coat the whole problem area rather than chasing a single crack, and because it dries clear, covering a wider zone leaves no visible mark. One 300g pot covers up to 5m² (54 sq ft) in a single coat, so you can go wide without running short.

It seals and stabilises light to moderate active leaks, cracks and joints. For heavy water ingress, dry and clean the area first, then apply, and that recurring drip in the same place finally stops.

Yes. SealPRO™ creates a fully waterproof, airtight barrier over cracks, joints and porous surfaces that resists rain, moisture and leaks once dry.

The coating stays flexible, stretching up to 400% so it copes with the everyday movement of a joint instead of cracking, stays stable in high and low temperatures and lasts up to 10 years, even after the pot has been opened. One 300g pot covers up to 5m² (54 sq ft) in a single coat, so one tin handles several jobs. For a bigger area, the x2 pack gives you 600g, enough for up to 10m² (108 sq ft).

Yes. The formula dries transparent, with no colour, no marks and no change in texture, so your tiles, walls or surfaces keep their original look.

That's a real advantage over opaque sealants and coatings you can spot from across the room.

It bonds to almost all common materials: cement, metal, wood, ceramic tiles, plastic, marble, brick, stone and more, indoors and out. Think flat-roof felt seams, flashing, gutter joints, window-to-sill gaps, shower trays and conservatory joints. It even holds under standing water, so a cracked bird bath or garden water feature can be sealed too.

To be straight with you: it's a sealing resin, not a structural repair, so it won't rescue a surface that's flexing badly or crumbling underneath. 

Leave weep holes and drainage gaps clear (they're there to let water out), and if a wall or floor is soaked through, let it dry out first so you're not sealing moisture in. On a sound surface, prepared as below, it does the job.

Clean the area well, removing grease, soap scum and any loose old sealant, lightly dampen the surface, then brush on SealPRO™ with the included brush and add a second coat for maximum waterproofing. No tools or special skills needed.

It's touch-dry in about 24 hours and fully cured in 48–72 hours. Pick a dry weather window so it can cure before any heavy rain, and the pot reseals for next time.

Yes. Once applied and cured it's stable and inert, so it's suitable for indoor repairs like bathrooms, kitchens and around sinks.

It dries with no lingering smell and a little goes a long way, which makes it easy to use in small, enclosed spaces.

Of course. You’re fully protected by our 90-day Money-Back Guarantee, no questions asked.

Our mission is to give you a risk-free experience, with dedicated support available 7 days a week. With over 10 years of customer service excellence, we’re always here to help: before, during and after your order.

That’s a fair question. We’ve proudly served tens of thousands of happy customers across the UK and Europe for over 10 years.

We focus on quality, reliability, and real human support. Every order is handled with care, and our team is always just a message away.

With 44,000+ satisfied customers and a no-risk money-back guarantee, you can shop with complete peace of mind.

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