3" x 25' Roll Black EPDM Double Stick Seam Tape

Had trouble working with it.

The title says it all

I tried this product twice and had the same problem. I tried to seam to liners together. Each time I did it still leaked. I even tried to spray it on seams with a adhesive and still did not hold. To much work for not working.

The tape has backing on one side only which means you cannot preposition it before you expose the adhesive. This makes it nearly useless in larger applications, and hard to use in smaller areas. This kind of tape needs backing on both sides for quality result.

We purchased this item to seam our koi pond due to extending it. At first, I seemed very happy with the product. However, the next day when adding the water to the pond, we came out a couple of hours later to find that water was leaking. There were approximately 5 to 6 places where the tape did not stick at all. We spent a lot of time ensuring that the area was clean, dry, and good for adherence of the tape. So, in addition to the money we spent on this tape, we will have to purchase some other type of adherent so we can continue to fix our koi pond and add the water to it. I would recommend steering clear of this tape!