SealNova Transparent Waterproof Sealant - FREE Brush Included
SealNova Transparent Waterproof Sealant - FREE Brush Included
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We deliver throughout the United Kingdom.
Order processing: 1–3 working days
Estimated delivery: 5–12 working days
Tracking: A tracking number will be emailed to you once your order has been dispatched.
Delivery times are estimates and may vary slightly during busy periods or due to circumstances outside our control.
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Shop with confidence. You have 30 days from the date your order is delivered to request a return.
The item must be unused, in its original condition and packaging, with all accessories included.
Please contact our support team before returning your order. Eligibility and exclusions apply according to our Refund Policy.
SealNova Transparent Waterproof Sealant - FREE Brush Included
Stop small cracks becoming costly repairs.
Apply a clear, flexible waterproof barrier in minutes — so rain, damp and everyday wear stop working against your home.
A tiny crack today can mean an expensive repair tomorrow.
Water finds its way in quietly — through a hairline crack in a roof, a damp patch on a wall, or a leaking join around a window frame. By the time it's visible, the damage is often already spreading beneath the surface.
SealNova™ was made for exactly this moment. It helps you seal the problem yourself, in minutes, before it turns into a call to a professional.
A flexible, transparent barrier that moves with your surface.
Unlike rigid fillers that crack under pressure, SealNova™ cures into a flexible waterproof coating that expands and contracts with temperature changes — so it keeps sealing through frost, heat and rain, rather than splitting the way stiffer products can.
Everything you need to stop a leak at the source.
Seals cracks and leaks
Creates a durable barrier that helps stop water penetration right at the source.
Works on almost any surface
Roofs, brick, concrete, tiles, metal, wood and many other materials.
Dries crystal clear
Keeps the natural look of your surface, indoors or out, with no visible patch.
Built for any weather
Resists rain, frost, heat and UV exposure without breaking down over time.
From a visible crack to fully sealed, in three steps.
Clean
Wipe the surface free of dust, grease and any loose debris.
Apply
Brush on an even coat using the included application brush.
Cure
Leave the coating to dry fully before exposing the area to water.
For the moments a leak simply can't wait.
Keep it in the shed, garage or under the sink for the jobs that come up without warning — a cracked tile joint, a damp corner, a gutter join that's started to weep.
Because not every sealant protects the same way.
| Rigid filler & caulk | SealNova™ | |
|---|---|---|
| Stays flexible over time | ✗ | ✓ |
| Dries crystal clear | ✗ | ✓ |
| Resists cracking with weather changes | ✗ | ✓ |
| Easy brush-on application | ✓ | ✓ |
Pick the size that fits the job.
| Finish | Crystal clear |
| Application | Indoor & outdoor |
| Coverage | Approx. 2–3 m² per 300g (one coat) |
| Shelf life | Up to 3 years, unopened |
Try SealNova™ without the worry.
You should feel confident before you buy. That's why every order comes with simple shopping reassurance: a 30-day money-back guarantee, secure checkout and a dedicated support team if you have any questions.
Questions before you seal your first crack?
Can I apply it to a damp or wet surface?
For the strongest bond, apply SealNova™ to a clean, dry surface. Applying over damp or wet areas can weaken adhesion and reduce how well the coating cures.
Can I paint over it once it's dry?
Yes. Once the coating has fully cured, most water-based paints can be applied over the top. We'd always recommend testing on a small area first.
How long does the seal last?
Durability depends on the surface and level of exposure, but SealNova™ is designed for long-lasting outdoor protection. Reapplying an additional coat in heavily exposed areas can extend its lifespan further.
Is it safe to use indoors, like in a bathroom?
Yes, SealNova™ is a water-based formula suitable for both indoor and outdoor use. Keep the area ventilated while it dries and allow it to cure fully before exposure to water.
