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Cast Stone, Outdoor Repoduction with Fiberglass Answered

I would like to reproduce a hand rail made out of concrete, cast stone; any suggestions as to how I should go about reproducing the cast stone rail and baluster?

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maninamousesuit

10 years ago

you could carve your master out of polystyrene or a mix of poly and wood, fill a large box with fine sand make a negative shape with the poly. master and fill the resultant hollow with cement..It will probably need polishing when you take it out. I have seen a dinghy hull made this way.....except he did not use concrete (duh)

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azalldesignmaninamousesuit

Reply 10 years ago

thanks for your help. production wise,it might not be too cost effective since i might need to have a few of them.

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chaoscampbell

10 years ago

All my experience with outdoor reproduction is in a completly different area.....and thank Ala I was unsussesful with every attempt....... :) haha...... sorry..... probably inappropriate.... but I had to...it was funny and so easy

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azalldesigngyromild

Reply 10 years ago

You can create a fiber glass form out of the plug or the form you are trying to replicate.

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GoodhartJohn Smith

Reply 10 years ago

I don't think He was involved really ;-)

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azalldesignchaoscampbell

Reply 10 years ago

can you be clear about your comments? I am reading 3 different feedbacks from your reply. I think you can be very helpful somehow!!! regards

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Goodhartazalldesign

Reply 10 years ago

He was not speaking of stone railing, if I got his drift. ;-)

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chaoscampbellGoodhart

Reply 10 years ago

I think you did...lol...... I can remove it if its to distracting..... but it is kinda funny

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Goodhartchaoscampbell

Reply 10 years ago

At this point, removal would only be more confusing I fear :-)

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guyfrom7upGoodhart

Reply 10 years ago

i thgought that too, he should change the title to something like casting stone outside

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azalldesignguyfrom7up

Reply 10 years ago

Ok, let's make it casting stone; where do we go from here?

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its a lionchaoscampbell

Reply 10 years ago

actually when i first read the thread title, i thought that might be what was being discussed...

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Goodhartazalldesign

Reply 10 years ago

I am not familiar with the "ingredients" of synthetic stone, but I know it exists. Sorry I am not of more help.

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azalldesignGoodhart

Reply 10 years ago

It is simply a mixture of sand, gravel, cement and water... Are you willing to go the extra mile since you suggested a site that is closely related to waht I intend to produce? kind regards.

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gyromildazalldesign

Reply 10 years ago

If it's polygonal in shape, wood+plywood combination as mold is a good option for casting cement. However, with curves, it's a lot trickier to carve out the mold shapes. Small scale concrete/cement casting uses wood since it cheaper, and it helps absorb water from the cement mixture quickly.

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Sedgewick17

10 years ago

There was this one old book I remember reading a while ago on this subject. I cant remember all of it, but I think the main principal for making cement castings is to fill a box with plaster of Paris, and then suspend the item that you are trying to cast in it. After the plaster dries you pour the cement into the cavity. You might be able to find a book on the subject here http://lindsaybks.com/

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Weissensteinburgazalldesign

Reply 10 years ago

I meant what did you want it to look like...but goodharts picture cleared it up.