Do i need glue or primer to seam two pieces of pvc liner together with this tape?

The seal definately holds well with no glue. I have two areas of water, one the pond and the other the filtration. I run the water across two seperate pieces of pond liner. I did this over a year ago. Before I tried the glue and it always leaked. This tape works really well. I suggest you thoroughly clean the two sides of the liner. I used soap first then alcohol and I have no leaks at this time. All last summer, all winter and now the pond is up and still holding water perfectly.

Which would be a better cleaner for the liner, denatured alcohol or rubbing alcohol? I don't want to harm the fish from residue.

I doubt either would harm the fish but if you want to be 100% than it’s 99.9% Isopropyl. Rubbing alcohol is 30% oil due to the drying out of the skin

Can I safely join 2 pieces of Edomite loner for my pond?

I used it to join 2 pieces of "PondGard 45 Mil EPDM Pond Liner Fish Safe" with the tape. You need to make sure the liner is clean and the pieces are flat. It is very sticky so follow the instructions.

Will it adhere to unpainted fiberglass I????

Yes if you are bonding other rubber based materials to it.

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💧 Seal it once, seal it right — the ultimate pond seam solution!

SEAMLESS STRENGTH - Double-sided butyl adhesion ensures a rock-solid, waterproof bond every time
DURABLE DIMENSIONS - Generous 3 in. width and 25 ft. length cover extensive pond seams with ease
EFFORTLESS APPLICATION - Self-adhering design eliminates the need for messy glues or tools—stick and seal in seconds
LIGHTWEIGHT PORTABLE - Compact 748 g package fits easily in your toolkit for on-the-go repairs
WEATHERPROOF RELIABILITY - Polyvinyl chloride material resists water, weather, and wear for long-lasting protection

The Cofair PLST325 is a 3 in. x 25 ft. self-adhesive, double-sided butyl tape designed for waterproof pond seam repairs. Made from durable polyvinyl chloride, it offers a strong, weather-resistant seal without the need for additional adhesives or tools, making it an essential, hassle-free solution for professional-grade waterproofing.

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¥21776

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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Manufacturer	Cofair Products Inc
Part number	PLST325
Item Weight	748 g
Product Dimensions	13.97 x 13.97 x 8.89 cm; 748.43 g
Item model number	PLST325
Material	Polyvinyl Chloride
Item Package Quantity	1
Measurement System	Imperial
Special Features	Double Sided, Self Adhering, Waterproof
Batteries included?	No
Batteries Required?	No

Cofair Products Inc PLST325 3 in. X 25 ft. Self Adhesive Double Sided Butyl Pond Seam

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