Quicksand Fans

The "jelly bomb" product mentioned in another forum is, according to the vendor, sodium alginate. This is one of the materials your dentist might use to make an impression of a tooth from which a crown would be made. It has some pretty significant drawbacks insofar as its use for making a quicksand pit is concerned. One is its cost, which is typically about $35.00 a pound. It might be quite a bit lower depending on the grade but its still very expensive. Second, and probably prohibitively, an alginate impression will last a few days at best. At room or outdoor temperatures I would expect its shelf life to be a good deal less.

True. I have used this material for resin castings & it has a very limited shelf life. It's designed for instant mold set up to take impressions. A fantastic material to ever be thought of for a QS immersion is silicone rubber before adding the hardener - but super-expensive & dangerous. If you want to see a scene where this type of substance was used watch the "Batman & Robin" movie (Arnold Mr.Freeze) where Robin fall into a green vat of this kind of stuff.

quicksand3D wrote:True. I have used this material for resin castings & it has a very limited shelf life. It's designed for instant mold set up to take impressions. A fantastic material to ever be thought of for a QS immersion is silicone rubber before adding the hardener - but super-expensive & dangerous. If you want to see a scene where this type of substance was used watch the "Batman & Robin" movie (Arnold Mr.Freeze) where Robin fall into a green vat of this kind of stuff.

Indeed the silicone material ridiculously expensive. And I hope no one thinks what you are talking about here is the kind that gives of a vinegar smell. That stuff will burn the skin very badly if used in skin contact while it cures.

I use GI-1000 by Silicones inc. a high tear strength, tin-catalyzed RTV-2 silicone rubber - has a pleasant odor like lillacs (approx $100./per gallon)

quicksand3D wrote:I use GI-1000 by Silicones inc. a high tear strength, tin-catalyzed RTV-2 silicone rubber - has a pleasant odor like lillacs (approx $100./per gallon)

That's a bit steep for sinking. A one cubic yard pit, which is really too small to be of much use, would contain approximately 216 gallons. I don't think the Gallium Polykryptonite pit, north of 2400 gallons, will be converted any time soon.