Imus Seal Butyl Joist Tape for Flashing Deck Joists and Beams (1-5/8” x 50’ Non-Skid)

I used this product for deck joists and the ledger. Easy to apply and good adhesion.

Ive tested this product for 8 years in harsh, outdoor weather extremes and it holds up fantastic. The glue does not dry, remains waterproof, and is almost impossible to remove later. Acetone has trouble dissolving the glue so dont expect this tape to come off if applied to a clean, oil free, and dry surface. I reordered 8 years later and the product seems the same. Dont change a thing, thanks!

My original intention for this was as a moisture barrier between my new exterior deck stairway stringers and the Trex deck boards I also used on my stairs, and I discovered another bonus in the process. On some of the other deck joists where I used a copper brown wood preservative on the cut surfaces, and where those surfaces directly contacted the underside of the Trex composite boards, the wood preservative leached up into the boards and significantly discolored them! Wherever I used this tape, that leaching and discoloration did not occur. Its a bit pricey, but not a bad idea to use on top of all joists and stringers!

Tape workout very well would definitely us it on my next project.

Don’t let it touch nothing it’s not going to stick permanently to

I am replacing my 20 year old treated decking with maintenance free decking and using the hidden clip fasteners. This product works well to cover the old holes and to just prevent water from sitting on the top of the boards. If you wipe off the boards first this does stick pretty well. Since it is black it also looks better in between the boards.

Pretty much as advertised. Although it didnt stick that well when folded over the edge.

I used Imus Seal butyl tape for a boat dock build. Feels pretty heavy duty. Worked good for my application. I used the tape to cover the deck joists and frames. I also used it for the abutment areas where the framing comes together. Some areas got additional attention with some polyseal compound from my putty gun. With pressure treated lumber the weak places are the wood/wood interfaces, and fastener areas. The Imus tape was easy to apply and ideal for this application. I expect this tape to add years to the life of my dock. Good investment!

Worked as expected. Slightly difficult to remove the backing from the adhesive side but nothing that would prevent me from buying again.

Im redoing and outside deck. The joists are still ok but...Ive used this on other decks and it is great at preventing water from rain/snow from entering the joist via screw or nail holes. You will be thankful you used this stuff down the road.