300g Invisible Waterproof Agent, Waterproof Anti-Leakage Agent,Roof Leak Sealing Adhesive， Invisible Waterproof Seal, Sealant Paste Coating No Pounding Brick Leakage

It is a jelly type substance. Reminds me of glue slime and jello. It's odd. But it works. I used it to make stepping stones. The little rocks were loose from the concrete and I hoped that the sealer would act as a bonding agent and attach them. It did! I was super pumped. It looks a little blue going on but dries clear. It comes with the smallest brush ever but it worked for my small project. Also it's a small jar. So if you are doing a large project I recommend buying more.

At first I applied one coat , it sealed a few spots and I was a bit disappointed . I applied a second coat as per directions and 100% sealed cracks. This is applied on and outside concrete patio in the hot Caribbean so time will tell how it holds up.

Beware, like many others have commented the image is deceptive. The image suggests a decent sized tub and brush. What you get is a very small amount and a toy sized brush. Not enough to do anything much with it.

Do not use this product!! Applied 3 days ago in early morning 75 degrees, low humidity. Full sunshine after. It’s super thick and lumpy. I stirred the major lumps out the best I could and tried to follow the less than clear instructions and put on seams between fully cured concrete and stone and spread as thin as I possibly could using the brush they supplied and then a more stiff previously unused brush. Had no rain for 72 hours until this morning at 7:20 am. It dried clear but super glossy which was fine. It’s either concentrated water based sealer or Elmer’s glue that has been concentrated. Most of the smaller lumps would not brush out and had to pick out all the white clumps with needle nose pliers. Came down this morning in the sun again after 2 hours of rain and what I saw was a shock. EVERYWHERE i spread was solid white almost like paint. I’ve used a wet vac and then air blower and then hair dryer to no avail. I’m not trying to find a chemical to remove it from the stonework I have put hundreds of hours of work into and hoping not to damage that work. Super stiff brush will not remove

Clear, dry fast, covers almost anything, easy to apply, quality good.

Used in bathroom of wet shower in boat. Seals good and painted over.

I was extremely skeptical about this product at first. But after using it, I'm blown away by the results. I'm not sure how it works, but it's incredibly effective. Simply apply the product to any surface, wait for it to dry, and you'll have a waterproof seal. No more leaky pipes, roofs, or walls. I even used it to seal the gaps around my garage window. This stuff is amazing!

It goes on easily and it works.