Soudaflex PU35 Polyurethane Premium Grade High Performance Elastomeric Sealant, 10.1 oz Capacity. Limestone, Case of 12. One Component, Flexible, Non-Sag. Applicator Gun Included

Veryn easy to use and seems to be holding up well after two months being in place. I will know more in a year.

I had similar experiences with this caulk as the other reviewers. Overall, it's very good for filling in cracks. It's not as thin as the self-leveling fillers, which is good. While self-leveling is great for areas that are actually level, there are many spots in my driveway and patio where that's not the case. Especially if you have an older house, it's rare that all your slabs are perfectly level, and sometimes concrete is sloped on purpose. Any driveway that has even a slight incline is not a good candidate for the self-leveling products. This PU35 is able to be used where those can't. Also, while it can be used on vertical cracks, it's best if you keep to smaller/thinner cracks in those cases. Lastly, since it can be used on wet/damp surfaces, you can save time because if you're using a pressure washer to clean out the cracks, you don't have to necessarily wait for everything to dry out afterwards. Overall, very happy with the results!

This is exactly the One Component, Flexible, Polyurethane Concrete and Masonry Sealant I've been looking for. Easy to apply with a standard Caulking Gun and no mixing required. I simply brush off any debris from the cracks to be repaired then fill the top 1/2" of the crack with Soudaflex PU35, then smooth it out with a putty knife. The sealant has a granite color to it so I sprinkle on some sand to provide texture and more closely match the grout on my deck. I've used "self leveling" sealants in the past but they tend to flow down into the cracks leaving an uneven surface once cured. Soudaflex PU35 Sealant is designed to work on vertical and horizontal surfaces so it doesn't flow and drip like self leveling sealants. I'm very happy with this product!

I used this adhesive to bond and seal my steel garage frame to the concrete slab. It appears to have bonded to both materials well and feels like it’s got some good flexibility and shouldn’t crack. It holds the PU35 classification so I figured it would be good stuff!

This is some messy stuff! It was also difficult for me to find a caulking gun capable of dispensing it from the tubes since its so incredibly sticky and viscous. But I've been using it to seal all the gaps around my new house and its absolutely perfect for that. Its incredibly sticky, therefore rather messy. But if you can deal with that you'll love how well this stuff works. Its a light grey color, in case anyone cares. RECOMMENDED.

My indoor and outdoors slabs were poured last summer to the tune of $18,000. I used my power washer to cleanout the expansion joints and I let it dry over the course of one dry-week. Then I used my air compressor to clean the gaps again from dust. Then I laid this stuff down. Can't fight physics and I went through several tubes as I didn't realize how many joints I have. I can sleep well at night knowing that I won't have water penetrating the joints and disturbing the base.

I’ve used this on a few cracks and crevices on a variety of surfaces and so far it has worked great. I’ve used this on wood to wood joining, concrete to metal, concrete to concrete and concrete to wood. Each time it’s stuck well, left a nice looking and feeling bead of material that fills in the gaps. It dries pretty fast too, getting tacky in a few minutes and pretty much dried in a couple hours. Definitely a good option.

This polyurethane sealant is a light gray color and the consistency is not too thick, so it can be squeezed into even the small cracks. This is good for sealing concrete where some flex is needed. A very similar sealant formula is used for sealing cracks in swimming pools, so I would guess this can withstand water immersion pretty well. This is a good value from a quality manufacturer. Some other brand are a lot more expensive. This is a good one to get when you need a lot of tubes.