Ok, there is a gypsum product out there that…
Is basicaly a cross between concrete and plaster.
Looks and works like plaster.
Sets fast.
When set, it is not as white as plaster, but pretty close. Is almost as strong as concrete, but lighter in weight. And is virtualy waterproof. (Or, if not actualy waterproof, getting wet will not deteriorate it like happens to plaster. In other words, it is waterproof in the way that concrete is/isn’t.)(in retrospect, I remember it being a bit more water”proof” than concrete.)
I have used this stuff in some concrete repairs, to very good advantage. I have also used it in some sculptures. But I am having a senior moment about it, and cannot remember the name of the stuff.
Anybody out there that can tell me what it is ?
A good heart embiggins even the smallest person.
Replies
sounds like Dependable brand floor fill/leveler....
not sure it's that water resistant though....
U ain't talking about plaster of paris, are ya?
Jeff
Buck Construction Pittsburgh,PA
Fine Carpentery.....While U Waite
Sounds like epoxy resin to me.
Rich Beckman
Another day, another tool.
You're not talking about Durabond, are you? If you are, my curiosity meter just climbed with using it on concrete.
"The child is grown / The dream is gone / And I have become / Comfortably numb " lyrics by Roger Waters
Fixall? Green and white box? Hard stuff when it's set.
Joe H
fixall
Yeah, I'm thinking Fix-all as well. Green box. Very fine powder. Mix with water to a paste. Gets a little warm during set-up. Work time about 5 minutes. Dries really hard. Definitely do multiple layers and keep it low. Don't plan on sanding it down later. If you want to sand something later do the last coats in spackle or taping mud.
Not epoxy resin, durabond, or fix-all.
This is a gypsum product. Looks and works like plaster, to a certain point. Sets very fast. When set, you can let it sit underwater, and it will not degrade.
When set, it feels for all the world like cement. But about half the weight.
Dangit, now I really wish I could remember the name of the stuff.
A good heart embiggins even the smallest person.
Quittin' Time
I always got it where I got plaster or drywall compound.
I remember that I was introduced to it when a drywaller brought a sack of it for part of a basement job.
A good heart embiggins even the smallest person.
Quittin' Time
Could it be "durhams" Water Putty? Was on a job once where a guy fixed a lot of chipped concrete culverts with the stuff. I was amazed that the stuff would work. Who knowes if it really worked - we buried it.
Durhams probably would work for that.
But Durhams is not what I am searching for.
A good heart embiggins even the smallest person.
Quittin' Time
Do you mean Gypsolite or Structolite? (these are not really gypsum products ... they are pearlited plasters) They do sound like what you are describing though. Since gypsum is soluble in water I can assure you that no product consisting of primarily gypsum will have a high degree of durability in wet conditions. Plasters are another story ... they come in many formulations and have a vast range of qualities.
Thank you Clay !
Structolite may be it.
I never really tested this stuff in really wet conditions for any length of time. It seemed to stand up well under water for at least the few days or weeks that it was counted on. And I was told it would stay that way idefinately.
The stuff certainly seemed as strong as concrete, once set, though.
A good heart embiggins even the smallest person.
Quittin' Time
Gee, I would have guessed plaster of paris - we make it with latex.
Phill Giles
The Unionville Woodwright
Unionville, Ontario
With latex ?
A good heart embiggins even the smallest person.
Quittin' Time
There are some plasters that have amazing properties. They make some for sculptors that are as hard (and heavy) as stone. Hydro-Stone is one, but some others are even more dense and hard. Some plasters are quite durable even in wet conditiions. Some plaster cements are considerably stronger than Portland cement (at least twice the compressive strength for some of them). Many of the quicksetting specialty products are actually plaster cements. Most of the common post anchoring compounds fall into this category. Structo-lite and Gypsolite have pearlite added to them for a filler and to provide some flexibility. Pearlite is heat expanded mica particles (they "pop" it like popcorn). It is very light and yet reasonably strong in an aggregate. Both products usually need some accelerant to set them. Alum works best most of the time. You dissolve the alum in water and then add measured amounts to your mixing water. Less alum slower set. More alum quicker set. You want the mix to get set up before it dries to avoid cracking from shrinkage.
Luka
I bought the "giant" bag of Structolight (costs about $10-$15) to set a tub into in my bathroom.
Before I set it I actually read the tub directions...lol... and it said not to set it into any gypsum product and Structolight IS gypsum.
I called the 800# on the directions because I've always set tubs and shower pans in the stuff. The rep told me my warentee would be void if I used it. She said it had to be set in concrete but couldn't tell me why.....hmmm.
Be well bro,
andyTrue compassion arises out of the plane of consciousness where I "am" you.
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