Flex Paste, 6 lb Tub, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs

Ordered two 6 # tubs. 65 + % of the tubs were hardened when they arrived and would not spread. Use a small can about a month ago and it worked very well. I suggest not ordering the larger size until the company can fix the problem. My second comment after contacting the seller. Within 48 hours I had an answer which corrected the problem , a very welcome solution. They are great to do business with.

The product was unusable when container was first opened. It was already cured and hard.

So far, it's working as expected. Roof leak has stopped.

I like this product and have used it before. However, this very expensive tub was half dried out already upon arrival.

The product does the job as advertised.

Used it to patch concrete foundation that broke out. It stuck on very well. Will have to see if it works and for how long. Concrete patch only lasted about a year then started cracking. Awful expensive for what you get it better last longer.

The label showed it was 22 years old,the top of the paste was hard. The center was covered by a paper patch,after I removed there was a 1” opening for me to pull out most of the paste.

Top 1/2 inch is hard and unusable