Can a small waterfall be made by applying only this to a precrafted frame, made of something like styrofoam?

I don’t think so..I tried this on my fountain & it still leaked..

Is this product safe for ponds with fish?

I used this product to seal a leak around my waterfall. I shut off the pump until the product was completely dry. It sealed the leak and my fish are perfectly fine.

Will this bond to plastic?

Yes it will bond to plastics and rubbers

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Description

💧 Seal the flow, own the glow — make your waterfall flawless!

FAST DRY FORMULA - Outer shell sets in just 5 minutes for quick project progress
DURABLE CURE TIME - Fully cures in 12-24 hours for lasting performance
UNIVERSAL ADHESION - Bonds to most surfaces except Teflon & silicone
SEAMLESS WATER FLOW - Fills gaps to optimize waterfall efficiency
PRECISION APPLICATION - Comes with a nozzle tip for targeted foam placement

TotalPond Waterfall Foam Sealant is a 12 oz single-component black polyurethane foam designed to fill gaps and ensure efficient water flow on rocks. It adheres to most surfaces (excluding Teflon, silicone, and polyethylene), dries to a hard outer shell in 5 minutes, and fully cures within 12-24 hours. The product includes a precision nozzle applicator for easy use and requires dry surfaces before application and 48 hours drying before water exposure.

Specifications

Manufacturer	Geo Global Partners
Part number	A16523
Item Weight	408 g
Product Dimensions	6.99 x 6.99 x 20.65 cm; 408.23 g
Is Discontinued By Manufacturer	No
Size	Height : 8.13 Width : 2.75 Depth : 2.75
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	7 x 7 x 20.7 cm

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TotalPond Waterfall Foam Sealant 12 oz

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