DAP Polyurethane Premium Construction Adhesive Sealant, White, 10.1 Oz (7079818810)

After heavy rains this winter I discovered a leak onto our bedroom ceiling. Upon checking our roof I found a badly broken tile and began a search for materials suitable for its reliable long-term repair. My key criteria included: * Exceptional bonding to my cement tile material * Long-term elasticity to accommodate differential expansions over time and weather conditions * Waterproof to a maximum extent to resist debonding after months & years of winter rains * Ability to last for years of exposure to direct sunlight and high rooftop temperatures * Be easily workable and able to readily wet to my bonding surfaces to achieve a reliable long-term waterproof bond In the past I have used black Polyurethane roof-patching materials with good success, particularly when I pretreated the area to be sealed with a painters solvent to achieve extremely good surface wetting of difficult to clean, often dusty rooftop surfaces. For my current tile-bonding application, I should be able to achieve good surface cleaning, and my previous black Polyurethane roof-patching material was no longer available. So after reviewing a number of bonding-material candidates I went with this DAP material in a gray color to sort-of match the gray tile. The one apprehension I had was the number of negative reviews about the excessive stiffness of the material as received by some Amazon reviewers. As my tile crack was weathered and filled with dirt, I decided to open my tile crack up into a V-groove with a diamond saw...thus producing smooth virgin tile surfaces for the caulk to bond to. The V-groove also aids in working the caulk into the joint to assure total filling and thorough surface contact. To expand the total bond area, the surface of the tile was also thoroughly cleaned adjacent to the groove and along the tile edges with an angle-grinder power wire brush to allow the crack adhesive to be spread out onto the tile surface adjacent to the V-groove and to seal the tile left longitudinal side crack which feeds water to the overlap seal with the adjacent tile. Since the lower part of the overlap seal on the left side is interrupted by the break, and is not visible from the surface, it represents a more difficult situation to reliably seal. This was addressed by buttering the left overlap seal break area with caulk before sliding the tile piece into place, and then filling the left-hand tile joint with caulk to minimize water reaching this difficult sealing area. Despite a number of negative comments about the excessive stiffness of the DAP caulk, it was found to be exceptionally easy to eject and spread, and appeared to wet surfaces immediately, and trowel smoothly, promising a excellent waterproof bond. My guess is that those negative reviews about excessive stiffness may be associated with folks that didn't recognize the cartridge is shipped with an internal diaphragm that must be punctured with a ram rod down the snout after the cone tip is cut off. Once this was done, my caulk flowed extremely easily. So far...highly recommended. We'll see how long it lasts!

Needed to seal leak along base of garage wall, worked well and no longer get water. It bonded to both wood and concrete, and we have since had a big storm and no water came through. I was honestly not expecting it to work, so I was very pleased. Was very thick, and a bit hard to apply, but I also have weak hands so not going to be too hard on it. Stronger people probably have less issues. It worked, and that is more important. Was a bit expensive, but it went a long ways. I will see how it lasts over time to give it my full approval, but if it holds up for a reasonable amount of time, I would use again.

Very sticky and adheres very well to concrete, a bit messy and takes quite a while to dry especially if it is laid thick. However it is all worth it as once it adheres and dries (which took a week in the middle of the summer at 100+ degrees almost every day) you can drive on it without any issues

Price about the same as big box stores, but more readily available. Ordered 3 tubes but only receive two due to poor packaging. Tubes have a sharp spout and should have been in a box not an envelope which was torn open and one tube missing. Amazon was great and refunded the cost of one. Product is good and performed as it should.

My application was to seal the edges of my much-used Toro Timecutter SS 4235 lawn tractor seat where the vinyl is supposed to meet the HDPE shell. The sealant tube manufacturing date is located inside the tube on the cap that is pushed by the caulk gun. My tube was manufactured 11 months before shipping to me. The consistency of the sealant was similar to cake frosting from a store-bought can. A wooden craft stick easily smoothed the sealant where I wanted it to go. The finished result looks much better than I expected. After first using paracord to mechanically stitch the vinyl through a few holes I drilled in the HDPE seat shell, I used most of one tube on the gap at the seat edges and it seems a very sturdy repair. The sealant covered the gap and the paracord knots. I used the leftover sealant on the lawn mower tires where blocks of tread had broken off. I don't expect the tire repair to last, but it cannot hurt to use the sealant there and I don't want to try to store an opened tube of sealant for very long. Even though the sealed gap on the seat looks just fine, I did purchase "CRAFTSMAN Riding Mower Seat Cover, Large" which fits the seat exceptionally well and hides the repair completely. I will look for more applications for this sealant and will gladly purchase it again.

Bought 2 tubes actually. I had to plug up a few dozen holes in the floor where lag bolts used to be. This stuff worked GREAT!!! - after I figured out that the hole and floor around it had to be clean - which is what I would have known if I read the instructions first. These holes are in a floor that has been treated with an epoxy coat, so it was important to sweep, brush hole with wire tooth-brush tool, and wipe away all the fine dust with a damp cloth. Next day I plugged the holes with DAP and calk gun. Needed some good grip strength to work the caulk gun. It gets easier as the tube empties out. I FORGOT a putty knife to make the plugs flat to the floor with a little bit of a collar around each hole for sealing. Greg cardboard worked fine. Set up was about a day, and 3 days later we were moving stuff over the holes and the DAP held in fine. I like this stuff, and probably will tend to buy it if I need it here again or at home. It is a little more expensive than some of the other products, but it is worth it for its durability. Oh, it was a little smelly during application, but smell was gone the next day. ThankS! : )

Had to put back together a piece of concrete that had been manufactured to look like unpolished granite with gray veins throughout. Dopey kids stood on it and cracked it in a bunch of places. This gray adhesive allowed us to put the slab back together perfectly. You’d never know it was cracked. Highly recommend

The product seem to work but it must’ve been damaged a little sense it leaked out of the bottom of the container.

I couldn't even open it

El producto estaba completamente tapado de la parte superior, una vez hecho el corte en el aplicador y utilizando una pistola de presión, el contenido no salía, después de aplicar demasiada fuerza, apenas logró moverse y comenzó a salirse por la parte de abajo.

Excellent for roof

I couldn't use the product because it was dry. It has good quality but be sure seller doesn’t send you old product. Otherwise, like me, you will throw it away without using it.

وصلني المنتج فاسد السليكون متجمد تم اكتشاف ذالك بعد انتهاء فترة الإرجاع حين قمت بإستخدامه