Invisible Waterproof Sealant with Brush – Super Strong Adhesive Seal Coating
Invisible Waterproof Sealant with Brush – Super Strong Adhesive Seal Coating
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Clear brush-on waterproof sealant
Seal fine cracks and seams without a visible patch
A small jar of clear waterproofing sealant with its own brush. It goes on milky white, soaks into hairline cracks and pores, and dries to a clear film that sheds water.
It is made for spot repairs on dry surfaces: a hairline crack in a window sill, a gutter seam, a tile joint, the mortar line on a brick wall. This page tells you what it can and cannot do, so you know before you buy.
Dries clear
Goes on milky white and dries to a clear film, so the repair does not show as a colored patch.
Brush included
Paint it on straight from the jar with the small brush in the box. No mixing and no caulk gun.
Needs a dry surface
Apply it to a clean, dry surface, then keep the area dry for 24 hours while it cures.
Before you buy
What it can seal, and what it can't
- Good fit: hairline cracks, seams and joints on dry concrete, brick, stone, tile, wood and roof tiles, indoors or outdoors.
- Not for water that is flowing: the coating needs a dry surface to bond and cure. Stop the leak, let the area dry completely, then coat it.
- Not for pipes under pressure: a supply line, or a joint that drips when the tap is on, needs a plumbing repair, not a surface coating.
- Not for wide cracks or holes: a thin brushed film cannot bridge an open gap. Fill open cracks and holes with a crack filler or caulk first, then coat over the repair.
- Not for standing water: it is a surface coating for areas that get wet and then dry out, not a liner for ponds, fountains, planters or tubs.
- A small jar: sized for spot repairs, not for a whole roof, deck or driveway.
What to expect: a thin, clear, water-repellent film over the treated area. On porous surfaces such as concrete, brick and stone it can darken the tone slightly or leave a light sheen, so try it on a hidden spot first.
How to apply
Three steps, then let it cure
Clean and dry
Brush away dust, loose bits and flaking paint, and let the surface dry completely.
Brush on thin coats
Work a thin coat into the crack and let it soak in. Add a second and third coat once the surface no longer looks wet.
Keep it dry
Keep the area dry for at least 24 hours while it cures. It turns from milky white to clear as it dries.
In the box
What you get
Before you start
A few rules for a lasting seal
- Pick a dry day. Apply it when no rain is due for at least a day, so the coating can cure undisturbed.
- Two or three thin coats. Let each coat soak in until the surface no longer looks wet before you add the next.
- Test a hidden spot. Check how the dried coating looks on your surface before you do the visible area.
- Clean up with water. It is water-based, so rinse the brush with water before the coating dries, and close the jar tightly after use.
- Handle with care. Keep it away from children and pets, avoid contact with eyes and skin, and work with fresh air.
Specifications
The details
