It says on your product Safety that it's " Harmful to aquatic life with long lasting effects." .I don't understand.

No idea about it being harmful. I used it to join two bits of liner that is under an artificial bog.

I have a 6 inch hairline crack in my fibreglass fish pond, will this fix it?

I haven’t used this product for that purpose but it is supposed to bond layers together and seal joints so may be worth a try.

Has anybody used it on a glass aquarium. I need to do an underwater repair with the tropical fish still in the tank.

It will seal underwater and is non toxic. I have used it in a pond. The tube I had was black sealant though.

Can gold label underwear sealantI have a hole at the bottom of my fish pond do i have to completely drain my pond to fix the leak

On the container it states that the glue will work underwater, which implies that you don't have to drain the pond. However, the instructions also tell you to remove all mud, silt and algae. To do this you have to lower the water level until the damage is exposed so that you can clean up around it.

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Gold Label Underwater Sealant, 290 ml, Black

Product ID: 48209530

Details

Brand
Gold Label
Item dimensions L x W x H
50 x 50 x 240
Item weight
0.5 Kilograms
Material
Rubber
Style
Compact

💧Instant underwater bonding

🔗Bonds all surfaces

🛡️Solvent & isocyanate free

HK$474

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

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Description

💧 Seal it once, seal it right—underwater magic in a tube!

ECO SAFE FORMULA - Solvent and isocyanate free, ensuring a fish-safe, non-toxic seal for aquatic environments.
DURABLE WATERPROOF - Provides a long-lasting, waterproof barrier that withstands pressure and moisture for ultimate reliability.
COMPACT READY TO USE - 290 ml liquid form in a sleek, easy-to-apply package—ideal for quick fixes and professional projects alike.
INSTANT UNDERWATER REPAIR - Seals leaks and cracks underwater without drying time—perfect for pond and aquarium emergencies.
UNIVERSAL SURFACE COMPATIBILITY - Bonds seamlessly to vinyl, glass, ceramic, plastic, stone, concrete, and more—one sealant to rule them all.

Gold Label Underwater Sealant is a 290 ml black liquid sealant designed for instant, waterproof repairs underwater. It is solvent and isocyanate free, making it safe for fish and aquatic environments. This versatile sealant bonds to a wide range of materials including vinyl, glass, ceramic, plastic, stone, and concrete, providing a durable, long-lasting seal ideal for ponds, aquariums, and other wet surfaces.

Specifications

ASIN	B0038LYLN0
Best Sellers Rank	12,107 in Garden ( See Top 100 in Garden ) 950 in Garden Décor
Brand	Gold Label
Colour	Black
Compatible Material	Vinyl, Glass, Ceramic, Plastic
Customer Reviews	4.4 4.4 out of 5 stars (905)
Global Trade Identification Number	05060159850036
Item Dimensions	50 x 50 x 240 millimetres
Item Form	Liquid
Item Weight	0.5 Kilograms
Manufacturer	Gold Label
Manufacturer Part Number	S30
Material	Rubber
Model Number	S30
Number of Items	1
Number of Packs	1
Style Name	Compact
Surface Recommendation	Window, Tile, Pipe, Countertop, Door
Unit Count	290.0 millilitre
Water Resistance Level	Waterproof

Common Questions

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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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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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HK$474

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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