BogDog wrote:I'm more than familiar with bleck and the Latino TV show videos features a pool of the stuff that came before. Not even close.
NOTE HOW the quicksand in this video is supporting her weight/right leg while she is trying to pull her left leg out. Her right foot is sloooooowly sinking in as well as she struggles. Density is important.
Try that in bleck and you sink straight to the solid bottom immediately as if in water. SLOW SINKING is a critical part of the fun. That's a key detail that bleck lacks. Stop moving and suddenly it loses almost all density and you plunge to the bottom in an instant. No likey that. What I see in this video is perfection! Honest-to God CLUTCHING quicksand that grabs you and slowly takes you down like in the comic books.
As was demonstrated on the internet many years ago, water and sand alone do not do that. You can climb in and out at will unless water is removed and it sets almost like concrete. Not my thing.
The Philippines stuff looks better, but it looks like she could just walk across it with no problem and had to work her feet and then her legs into the stuff intentionally. It never really captures her. Looks unnatural too, like bubble gum. I'm an artist and am cursed with an eye for detail, so these things stand out to me.
EASY to find the waterlogged-sand kind of quicksand with buoyant grains not supporting your weight. People literally play in that kind of stuff these days. But SO hard to find good, mucky, gripping quicksand. Very rare but very awesome when found. These videos in china are just that.
The natural quicksand in the videos in this thread are definitely my favourite type of quicksand as well, because of the way it behaves and looks, especially the stuff in the video in the first post, which looks extra wicked, the type of stuff our dreams (and some others' nightmares) are made of!

In many cases, such as the Latino tv shows, the bleck has higher water content, with a very fluid appearance and motion, looking like milk, and with a quick sink to the bottom, as you said, which is not suitable for mimicking quicksand. However, the MPVBleck mixture that Dave created in the Philippines was so extremely thick, that it comes close to mimicking thick quicksand. Perhaps there are some slight differences, but it is the type of stuff that the victim can walk over top of it quickly without sinking, and then when she stands still, she then sinks nice and slowly into it. If you were to take a closer look at the video in the thread I linked to earlier, you would notice that when Lyn is standing still, it is very slowly sucking her down, and she doesn't have to work herself into it.
One problem with the bleck is that it can be costly to get enough cornstarch for a deep sinkable pit, with the sinking material having a short shelf life, breaking down and turning rancid, which limits its amount of use for the amount of expense. So the pit winds up being deep but not very wide, allowing the victim to reach over and push down on the outside of the pit to work herself out. If the pit was wide enough for solid ground to be out of reach, THEN she would be unable to escape, and become trapped!
Here is another link to check out (you can hear the suction it has on May's feet):
viewtopic.php?f=7&t=27225