looking for info on creating tiles from concrete. similar to this look

tiles are about 20 x 30 inches. half inch thick
- what would be the best concrete?
recommended was:
http://www.targetproducts.com/UserCo.../flowcrete.pdf

Ive bought some good mdf for molds but looking for help with how to separate the concrete from wood after drying, proper curing, would spraying the mdf with oil be good enough?

any help would be great... thanks!

 

Flowcrete wasn't made for this purpose, according to their "uses" statistic. I would say you would have to reinforce the panels with fiberglas, at least, if not chicken wire. Concrete alone, in only 1/2" thickness may not stand up to the rigors of being handled in such large pieces. The construction method used in the fireplace surround you used as an example, obviously has other support methods incorporated in. Having the joints directly above each other does not afford a good tie and tier.
The sitting area, also must be cantilevered back into a pretty deep base in order to maintain stability.
The entire unit you see is probably 3 to 4' deeper than what you see in order to provide needed support for everything.

 

its actually 1/2 inch.... I went to the showroom and got a sample of exactly what they apply...

 

How did THEY say to do it? I am sure the panels are only 1/2", but the super structure has to be more substantial to hold them up independently, as the method that is shown in the pix is not structurally correct.

 

the used brackets fixed to studs at the bottom for support.. pretty simple idea and works fine..
im using mdf for forms.. anyone know best concrete mold release agent to use?
maybe coat it all with some resin and spray it with oil?

 

Try this: Amazon.com: Lindemann 760616 Concrete Release Agent- 1 Gallon: Kitchen & Dining google is your friend.

 

i used veg oil... it works fine. Im going to try glass fibers in the cement.. and then instead of a release ill use plastic with oil...