LLPT Butyl Seal Putty Tape White 1 Inch x 33 Feet Extra Thick for Leak Proof RV Repair Window Glass Boat Sealing Roof Pipe Patching(WST233)

Super Artikel. Tolle Klebekraft und vom Trägerband sehr leicht zu trennen. Keinerlei Rückstände. Dadurch sehr schnell und einfach anzubringen und zu veranrbeiten. Richtig gute und frische Ware. Dankeschön.

Could have been a little more malleable but I was pleased with the outcome and am confident that it created a great gasket between the corner trim and siding of my trailer. I will buy more for future projects. I will also use to install kitchen sinks int he future between the sink and countertop - wish I knew about this product in the past.

Good quality tape used for sealing. I used them putting up corrugated pvc sheeting. Exactly what I needed. Good bonding on wood, metal, and pvc, even in a drizzle. No leaks where it was applied. I can recommend this, if your in the need for rubber butyl tape that works well and is easy to apply.

Great for sealing my tank lids

I've used good butyl tape in the past for sealing above the waterline deck penetrations in boats. And I've refused to use bad butyl tapes...as they are just not worth the effort to use and often make a big mess. I needed some butyl tape to install a replacement RV roof vent fan and my usual go-to stuff was unavailable, so I decided to give this one a try. I can say this appears to be quality stuff. The roll came shipped in a cardboard box so it wasn't a crushed mess like some others you can order. The initial feel was virtually identical to the stuff I usually use. It is a bit sticky/tacky, but not overly so and pliable, but not overly soft. I squeezed a small piece between my finger and thumb for a minute, then pulled them apart and it did stick and stretched quite nicely...indicating it should provide a good seal at normal temperatures. I ran a couple tests with two small pieces to check how it dealt with temperature changes. One piece was mashed between a folded piece of cling wrap and placed in the freezer (-2F) and another was placed between a folded piece of parchment paper and placed in my toaster oven on warm (160~180F). After 20 minutes in the toaster, I removed the parchment paper and peeled the paper apart. The butyl was just a bit softer than room temperature but it didn't flow/melt and still had good structure. It adhered to the parchment paper and stretched like it should. I (accidentally) left the piece in the freezer for over a day. When I took that one out and tried peeling the cling wrap apart, the butyl again stayed stuck to the film and stretched quite well. This is exactly how a good butyl tape should be...remain pliable and a bit sticky for the whole expected temperature range. The only thing I can't judge right now is if this will remain flexible over time, but it seems like it should. If it does, it will make a very nice and permanent seal. I had no hesitation about using it for my RV fan install project. I will update this review if I find an issue down the road, but I do not expect one at this point. For those that have never used butyl tape, here are a couple hints. Butyl tape is not an adhesive, it is a sealant and requires another means of structural attachment (usually screws). For a good, water-tight seal, apply the tape to the object, then tighten the mechanical fastener (screws) until snug and the butyl is squeezed just a bit. Then let it sit a bit so the butyl flows (ok, not flow but slowly squeezes) and stabilizes. Then go back and tighten a bit more. Repeat this process until the items is secured. You can then use a plastic putty knife to trim away the excess. You can also use a ball of the sealant pressed/tapped against the oozed out sealant to clean up the seams. Just don't pull at it. If you keep the ball of removed sealant clean, you can even reuse it for another project. I recommend warmer temperatures if possible, as it makes this process go more quickly. If done properly, butyl will make a very good, long lasting flexible seal. So, my initial impression is this is a good quality butyl tape and is highly recommended.