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

Sealed up leak around vent pipe on roof .

Received it today and started using it on my project. I noticed that the opposite side of the container was hard on top. I initially did not pay too much attention to it until I started using it and noticed that it was already hardened by about half an inch thick. If I had realized how much of the product was unusable, I would of just closed it up and returned it. Needless to say, my project soon became a mess. Trying to separate the dried out portion from the somewhat fresh product was very messy. The product was already drying out, probably sitting on the distributor's shelf. The product is expensive as it is and more so when a portion of it is wasted. I guess I should of made the trip to Home Depot or Menards.

Bought this to repair a plastic water tank that sprang a leak. This product covered up the hole nicely and stopped all leakage.

A 3 lb. container was barely sufficient to cover a 2 foot square patch on my roof. However, I am convinced that it will do the job over the coming winter. It beats a new roof at this point. $90 versus $12,000 for a new roof...hmmm...(I wonder how many containers it would take to do the whole roof). My HOA would unravel.I'll be looking around for cheaper alternatives that would do just as well.

Like many other users, my tub of stuff arrives with half of it oxidized and unable to be used. It was basically a hunk of hard rubber surrounded by usable flex paste. The paste that did work is excellent! Just frustrated at how little amount you receive. TIP: Check before you spread. Dig your spatula deep into the product to see if it has oxidized. Mine was directly below the aluminum foil but didn't see it right away, so I used it before noticing I should have returned it.

This is a great product! Tons of applications! I used this stuff on a chimney flashing and a skylight and it held up very nicely. You even use the spray on version of this stuff as a DIY bed liner for your truck! Amazing.

Recommended.

Ordered product as shown on Amazon in updated metal cans. Plastic tubs were reported to allow product to harden. Received product in PLASTIC tubs, partially hardened and unusable. Received product was kept in AC house and opened within 3 days of receipt. I would like one replacement can to compensate for the unusable material. Shiny areas in above photos show hardened, unusable material.