This product can be applied underwater? Or does it have to be applied and cured on a dry surface first?

Yes, can applied under water. I got piping that have very small water leaked that is why I bought this one. I applied and it seems it stop the leaked up to now. Hope this helps.

can this be used to repair a cracked skimmer?

I would give it a try. I used to repair a leaky exhaust port on a motor yatch.

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Seal the Deal! 🛠️

COMPACT CONVENIENT - Easily fits in your toolbox or drawer.
SEAL WITH CONFIDENCE - Experience unmatched waterproofing for all your projects.
PRECISION APPLICATION - Gel formula allows for controlled and mess-free sealing.
DURABLE LONG LASTING - Crafted from high-quality polyurethane and acrylic.
VERSATILE COMPATIBILITY - Perfect for tile, concrete, and plastic surfaces.

Underwater MagicSealant is a high-performance, waterproof gel sealant designed for a variety of surfaces including tile, concrete, and plastic. Packaged in a compact 290ml tube, it offers precision application and durability, making it the ideal choice for both professional and DIY projects.

₨2037

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Surface Recommendation	Tile, Concrete, Plastic
Water Resistance Level	Waterproof
Item Form	Gel
Compatible Material	[Most Materials, Excluding Vinyl]
Material Type	Polyurethane, Acrylic
Color	White
Style Name	Compact
Item Weight	0.01 Ounces
Item Dimensions	9.05 x 1.95 x 1.95 inches

Underwater Magic Sealant, 290ml/9.8oz Tube, White

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