Waterproof Silicone Sealant, Weatherproof Gap & Joint Caulk
Store availability
Online exclusive. Local pickup is not offered for this product.
No local pickup is offered in London.Available online
Description
Waterproof silicone sealant that seals leaking gaps, joints, and cracks in one squeeze. This weatherproof gap and joint caulk comes in a hand-squeeze tube, so you apply a thick, even bead straight from the nozzle with no caulk gun required. The paste grips tile, glass, metal, ceramic, and pipework, then cures into a flexible, water-tight seal that stands up to rain, sun, and temperature swings.
Use it on window frames, bathroom joints, roof tiles, gutters, and household pipes, indoors or out. Choose from white, black, grey, or transparent to match the surface you are repairing.
Specifications
- Form: Thick paste sealant in squeeze tube
- Material: Silicone sealant
- Colors: Black, transparent, grey, white
- Application: Direct from nozzle, no caulk gun required
- Surfaces: Metal, glass, tile, ceramic, masonry, plastic pipe
- Use Location: Indoor and outdoor
What's in the Box
- 1 x waterproof silicone sealant tube with applicator nozzle and cap
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Your Nosura guarantee
30-day returns
Shop with confidence. Eligible items can be returned within 30 days of delivery under the conditions in Nosura's return policy.
Clear, dependable service
- 30-day return window
- Free shipping
- Secure checkout
- Customer support
Frequently asked questions
Do I need a caulk gun to apply it?
Can it be used outdoors on roofs and gutters?
Will the seal crack when the joint moves?
Which surfaces does it bond to?
Which color should I choose?
Shipping & Delivery
- Free standard shipping on this item.
- Orders processed within 1–2 business days.
- Estimated delivery 7–12 days; tracking emailed once shipped.
Returns & 30-Day Guarantee
- 30-day money-back guarantee.
- Not happy? Contact us for a refund or replacement.
- Return items in original condition.
How do I track my order?
What if my parcel is delayed?
How is payment protected?
Which currency will I be charged in?
How can I contact Nosura?
Free shipping
Free standard shipping to United Kingdom.
30-day returns
Return eligible items within 30 days of delivery.
Secure payments
Encrypted checkout with the payment methods shown for your selected market.
Stop Leaks Where They Start
A dripping pipe joint, a gap around the window frame, a cracked seam on the roof tile — small openings let water in and turn into big repairs. This silicone sealant squeezes straight from the tube into the gap and cures into a flexible, waterproof rubber seal that moves with the joint instead of cracking. It bonds to metal, glass, tile, ceramic, and masonry, so one tube handles jobs all around the house, garage, and yard.
Waterproof Seal
Cures into a water-tight rubber barrier that blocks leaks on pipes, windows, and roof joints.
Weatherproof and UV-Resistant
Formulated for outdoor exposure, holding its seal through rain, sunlight, and temperature changes.
Flexible After Curing
Stays elastic once dry, so the bead flexes with joint movement instead of cracking loose.
No Caulk Gun Needed
Hand-squeeze tube with a tapered nozzle lays a controlled bead straight into the gap.
One Bead, Permanent Waterproof Seal
Squeeze a thick bead into the gap, smooth it, and let it cure. The sealant hardens into a flexible, weatherproof rubber joint that keeps water out of windows, pipes, tiles, and roof seams season after season.