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

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

Product ID: 41353198

Details

Brand
Underwater
Item Weight
0.27 g
Item dimensions L x W x H
9.05 x 1.95 x
Material
Acrylic
Style
Compact

🌊Seals underwater flawlessly

🧪Chemical & chlorine resistant

🌡️Temp resistant -40°C to +200°C

S$109

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Description

🌊 Seal the deal above and below water with magic-grade confidence!

TEMPERATURE TOUGHNESS - Withstands extreme temps from freezing cold to scorching heat without losing elasticity.
ECO SAFETY CONSCIOUS - 100% silicone-free, solvent-free, and safe near food areas—perfect for professional-grade projects.
USER FRIENDLY APPLICATION - One-component, odorless formula in a standard 290ml tube—no mixing, no mess, no downtime.
CHEMICAL CHLORINE SHIELD - Resistant to saltwater, chlorine, oils, and harsh chemicals for lasting durability.
UNMATCHED UNDERWATER PERFORMANCE - Seals leaks and bonds underwater with commercial diver-grade reliability.

Underwater Magic Sealant is a professional-grade, 290ml white gel that bonds and seals underwater and in harsh chemical environments. Trusted by commercial divers, it offers permanent elasticity, exceptional abrasion resistance, and temperature tolerance from -40°C to +200°C. Its odorless, one-component formula is free from silicone and harmful solvents, making it safe for use near food and ideal for demanding sealing tasks on tile, concrete, and plastic surfaces.

Specifications

ASIN	B01NCUU1N1
Best Sellers Rank	#66,702 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #247 in Hardware Sealers
Brand Name	Underwater Magic
Color	White
Compatible Material	[Most Materials, Excluding Vinyl]
Customer Reviews	4.2 4.2 out of 5 stars (71)
Item Dimensions	9.05 x 1.95 x 1.95 inches
Item Form	Gel
Item Weight	0.27 g
Manufacturer	Underwater Magic
Material Type	Acrylic, Polyurethane
Model	UWM-01
Number of Items	1
Number of Packs	1
Part Number	UWM-01
Style Name	Compact
Surface Recommendation	Tile, Concrete, Plastic
UPC	712190587963
Unit Count	9.8 Fluid Ounces
Water Resistance Level	Waterproof

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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S$109

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

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