I currently made a urethane mold for an exterior watertable for my home I’m
remodeling. This is a new application over a two month old brown coat of stucco. I
have made a white concrete and #60 sand casting that achieves the desired
look ,however it is quite heavy (about 25 lbs.)for it’s size (appr. 3″x8″x18″) I am
looking for some material that I can mix that would more lightweight that I could
thinset to the browncoat. This is all archetecural and has no structural value at all.
any Ideas?
Could a building code update make your go-to materials obsolete?
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Replies
Welcome, newbie. Where are you?
As to the molding, you might try Durhams Rock Hard Water Putty, comes in a round red can with my picture on the front :) It has to be sealed, but it is suppoesed to be castable and is designed for exterior use.
Add perlite insulation to the crete mix in place of the coarse aggregate.
T
Do not try this at home!
I am a trained professional!
I've heard of lightweight fillers although I was concerned how they might affect the finish. I was wondering if anyone has heard of aerated cement. I've heard of it but haven't had any luck in finding it in my area( SF Bay area). I was also wondering if anyone knows what composition lightweight roof tiles are made of as that might be a possible avenue.
I have a bag of Scofield Overlay (light weight concrete) in my garage waiting for the testing.
Article in FHB about its use for counter top where weight was a concern. Perlite as the aggregate would be a cheaper solution. But if that doesn't work......
Shelley in NM
Thanks for the info. I just ordered 50 lbs. of Fillite and I'll see how it works this weekend. I'll see about perlite if this is a bust.
Might be too late, but...what about forming it from rigid foam and then caoting it with fiberglass like a boat hull? Or with eifs material?
BTW....if you ever do this again......here in the land of stucco adornment is created from whatever....celotex, sytrofoam.....placed under the wire b4 scratch.