Waterproof Silicone Sealant, Weatherproof Gap & Joint Caulk
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
Choose options
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.
Frequently Asked Questions
Do I need a caulk gun to apply it?
No. The sealant comes in a hand-squeeze tube with a tapered nozzle, so you squeeze the bead directly into the gap or joint.
Can it be used outdoors on roofs and gutters?
Yes. The cured seal is weatherproof and UV-resistant, making it suitable for roof tiles, gutters, window frames, and exterior pipe joints.
Will the seal crack when the joint moves?
The sealant stays flexible after curing, so it stretches and compresses with normal joint movement instead of cracking.
Which surfaces does it bond to?
It grips metal, glass, tile, ceramic, masonry, and common plastics, which covers most household, automotive, and workshop repairs.
Which color should I choose?
White and grey blend with tile, walls, and frames; black suits roofing, automotive, and pipe work; transparent is the discreet choice when you want the repair to disappear.
Storage & Safety
- Store sealed in a cool, dry place, out of reach of children and pets.
- Follow the on-pack directions for use and disposal.
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.