3 ms·

Presumably it hardens first to self-seal and then slowly the solid expands? But this[1] documentation implies it can expand as a liquid: "Forceful BLOWOUTS may

• fbdab103 3y ago
  Timelapse video if it in action over 24 hours: https://www.youtube.com/watch?v=lsDh92nvdzw https://www.youtube.com/watch?v=lsDh92nvdzw Given the safety warnings on that link, I was expecting something far more energetic.
• happytiger 3y ago
  No, it takes a long time depending on the product and doesn’t really self-seal per-se. It just hardens in the hole and kind of draws down into the hole in the first few hours… You drill a hole and then mix and fill it. This product and its competitors is generally like a pancake batter. The product sits in the hole and becomes hardened fairly quickly as it reacts. Generally I’ve seen it do cracking work overnight (like 12-16 hours), though most of the time when I’ve used it 2 days show the full results you’re going to get. It can really take some time. I’ve split absolutely massive boulders with this stuff. As big as houses with a 3.5’ foot hole. Often the cracks will run hole-to-hole so you have to really think about the pattern to break the rocks.