Hi there, is this product suitable to repair or fill small digs of the topcoat (gelcoat and poolcoat) at the bottom of a polyester resin pool ? Cheers

This will hold and seal submerged but it is a soft repair for hidden areas like inside light fixtures to seal cables etc. On a traffic area, I don't think this is the best solution.

I have a patch of fiberglass missing on my pool can I use this as a patch?

This holds very well submerged but I'm not sure it is the right solution for a patch depending on size.

We need to fill the gap above the tile and below the coping. Will this work ? And can you purchase additional tubes without purchasing the entire set

Yes. It will work very well. I have use it on my pool several times to fill up gaps between tiles or replace loos ones. You can also buy just the epoxi but they son sell the tips separately. My advice is to use it to join or fill small gaps other wise will be too expensive.

Can you use it in a pond with fish in it

I'm not sure about the toxicity but underwater applications involve placing the adhesive on a piece of plastic slightly larger than the repair area. This is done outside of the water which makes this even easier The KIT includes plenty of the plastic. I think if you leave a 1/2 of the plastic repair patch without adhesive on the edge and press it over the damaged area it will work without contaminating your pond. The plastic can even be removed after about 24-48 hours. One thing to remember is that you want a thin even coat on the plastic. Less is more with this product. Good luck

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Underwater Swimming Pool Repair Epoxy Kit for Pools and Spas - DMK-5200 50ml Kit (Gray)

Product ID: 628968460

Details

Brand
AQUABOND
Item form
Putty
Material
Fiberglass
Special features
Underwater
Specific uses for product
Tile Repair

🌊Underwater-ready bonding

⚙️Complete repair kit

🛠️Heavy-duty durability

817.13 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌊 Fix your pool underwater like a pro—because draining is so last season!

BUILT TO LAST - Marine-grade epoxy ensures repairs that withstand harsh aquatic conditions.
ALL IN ONE POWER - Includes dispensing gun, mixers, and application film for pro-level precision.
PRECISION VOLUME - 50ml cartridge covers up to 6 feet of crack or 16 tiles—no waste, just results.
DIVE IN FIX FAST - Seamless underwater application means no draining, no downtime.
VERSATILITY UNLEASHED - Perfect for fiberglass, PVC, metal, ceramic, concrete, and wood repairs.

The AQUABOND Underwater Swimming Pool Repair Epoxy Kit (50ml) is a marine-grade, heavy-duty epoxy designed for underwater repairs on pools and spas. It bonds securely to fiberglass, PVC, metal, ceramic, concrete, and wood without draining water. The kit includes a dispensing gun, mixers, application film, and photo instructions, enabling precise, durable fixes that cure fully in 4 hours. Ideal for professionals and DIYers seeking fast, reliable aquatic repairs.

Specifications

ASIN	B01C297P2C
Brand Name	AQUABOND
Color	Grey
Compatible Material	Fiberglass
Container Type	Cartridge
Customer Reviews	4.0 4.0 out of 5 stars (26)
Full Cure Time	4 Hours
Item Form	Putty
Item Package Quantity	1
Manufacturer	AquaBond
Material Type	Fiberglass, Polyvinyl Chloride
Model	3Y-SBPP-AYE1
Number of Pieces	7
Other Special Features of the Product	Underwater Application
Part Number	3Y-SBPP-AYE1
Specific Uses For Product	Tile Repair
UPC	856649004134
Unit Count	1.0 Count
Volume	50 Milliliters
Water Resistance Level	Waterproof

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