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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?


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)

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

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

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

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

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

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

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

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

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

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

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

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

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.

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.

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/

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