--- "Annie Crimp" <angelc_25_2002@...> wrote:
>
> I am interested in making small items made from papercrete such
>as planters etc. in fact any small object which I can eventually mosaic.
>I've seen lots of Mosaic on concrete and always thought it was done
>while the concrete was wet. I'm sure it *can* be done later- but
>wonder if the process is easier if you do it 'wet'.
>Jim
I've done mosaics both ways poured in place and install after the
fact. They both work fine but have their own good and bad points. I
like pour in place and its hard wearing surface for stepping stones
and outdoor countertop surfaces. Just cast whatever you are making
upside down with the mosaic picture on the bottom with the viewed
surface against the form. It helps to glue the mosaic pieces to craft
paper or to the form surface using common pva glue slightly diluted
and then pouring the concrete over it. Vibrate the form with a pad
sander, reciprocating saw or by tapping the underside with a rubber
mallet to remove air bubbles and fill voids. I understand that some
people are using a cement rich papercrete for this also.
On 10/16/09, Jim Elbrecht <elbrecht@email.com> wrote:
> "mickoola" <fml@pbtcomm.net> wrote
>>>
>>One easy way to make small, quick batches for sculpture, etc.without
>>a lot of fuss or mess: buy a bag of cellulose insulation (about $10 here
>>at Lowes or Home Depot), which is pulverized paper. I soak some of it
>>in a 5 gallon bucket for a day or so. Using another 5 gallon bucket and
>>a 2-pound coffee can, I mix 3 cans of the wet insulation with 1 can of
>>portland cement and a half-can of powdered joint compound. Just mix
>>it by (rubber-gloved) hand, without adding any more water. The joint
>>compound changes the consistency enough to make it smoother
>>and easier to model into shapes.
>
>
> Thank you for that. A friend and I have been playing with recipes
> for sculpting and tried that basic recipe- but without 2 important
> points. The recipe I found didn't mention soaking the cellulose---
> and it also just said "joint compound" which I had a bucket of handy.
>
> Still, it didn't turn out too bad & was still soft enough to cut with
> sharp woodworking tools a couple days later.
>
> We'll have to give it another go with wet cellulose and dry joint
> compound.
>
> Then to Annie's point-
> --- "Annie Crimp" <angelc_25_2002@...> wrote:
>>
>> I am interested in making small items made from papercrete such
>>as planters etc. in fact any small object which I can eventually mosaic.
>
> I've seen lots of Mosaic on concrete and always thought it was done
> while the concrete was wet. I'm sure it *can* be done later- but
> wonder if the process is easier if you do it 'wet'.
>
> Jim
>
--
Robert Morger
Central Texas
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