yes it does harden overnight.
you can use modeling clay, well at least that is what i used
Zep Orange
Depends on what kind of clay i looked into it and clay is not flammable It will either melt harden or explode. Speedkoyn
I would make the clay into slip and roll it out. Get a cookie cutter in the shape of a star and press it into the clay.
Useful for many moldmaking and sculpting undertakings. Unlike water-based clay, oil-based clay will not harden and may be used repeatedly. It is ideal for temporary molds and models. Good for making dams when molding and casting. Soft enough to make impressions of leaves or other habitat materials. Several leading bird taxidermists, most notably Ed Thompson of Lilburn, Georgia, like to use oil-based modeling clay to set the eyes in their bird mounts. This gives them the freedom to slightly modify the eye angle or depth after the bird has begun to dry. Roma Plastilina Modeling Clay is the number one choice of discriminating sculptors everywhere. Grayish-green color, medium firm.* http://www.taxidermy.com/cat/16/oilclay.html
Magic sand is a blend of play sand, water and cornstarch. It does not harden permanently and is used as a modeling clay for children.
Plasticine, which is a brand of modeling clay that won't harden, is a sol - not a liquid, nor a solid. And you'd have to really work at it to gasify this.
Why yes there is. An extruded clay is something pushed out by a machine and modeling clay is handled by man.
Modeling clay can be very useful for students in school and kids and adults out of school. In case you are curious, the ingredients of modeling clay from Rose Art are not made public.
Bone emulsion is not made up of milk protein. Bone emulsion is a process that happens after plaster has been mixed with modeling clay to help it harden.
If you mean clay soils, then yes. If you mean modeling clay, no.
a toliet is made with clay and the clay is heated to make it harden
you can use modeling clay, well at least that is what i used
how to get clay off wood tables.
Leave it out in the air and unsealed.
By hand
The present tense of "harden" is "harden." For example, "The clay hardens as it dries."