Clippings by twooofeathers

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RE: Painting concrete leaf questions. (Follow-Up #1)

posted by: buckyforce on 04.23.2006 at 08:44 pm in Hypertufa Forum

Hi Fleur!

I think you are about to discover the most creative part of casting leaves!

I usually airbrush my leaves, but a brush can give you wonderful effects too! I use exterior satin latex paint. Satin will give you a nice sheen, like a real leaf. I always recommend adding the white bonding agent to the paint. How much is up to you. I would imagine, although I haven't tried it, you could use a first coat of just the bonding agent and then paint. Since I use an airbrush, the bottles I use probably hold 1/4 cup or less of paint. I add about 2 tablespoons of the bonding agent and about 1/2 teaspoon of water, shake it up and paint away.

Leaves I have painted with this mix have been outside, here in South Florida, for about the last 2 years with no appreciable wear. Hurricanes, torrential rains, the paint still looks good! They seem to be able to put up with most abuse, with the exception of a hard scrubbing.

If you are going for realism, take a real leaf to the paint store and have them scan the color. No one offers "that" color off the shelf and it makes an incredible difference in the finished leaf.

Good luck - have a ball - and by all means post pictures of your creations!



clipped on: 10.26.2014 at 09:06 pm    last updated on: 10.26.2014 at 09:06 pm

RE: Using Silicone Caulk as a Mold Material (Follow-Up #4)

posted by: Nofu on 12.13.2004 at 07:55 am in Hypertufa Forum

It doesn't. It merely forms a shell which supports the silicone when you fill it with your casting material. If the shape or complexity of the mold may require that the mold and mother be locked together, you can spread a thin third layer of silicone on the back of the cured mold, prior to applying the plaster bandages, and partially embed small strips of cheese cloth, leaving tabs sticking up all over, that will lock into the plaster. Make sure that one end of the cloth tabs is actually embedded in the silicone, not just stuck to the surface, or they will eventually pull free.

BTW, you can substitute cheesecloth soaked in plaster for the plaster bandages.


clipped on: 10.26.2014 at 08:25 pm    last updated on: 10.26.2014 at 08:25 pm