Technically, no. If it is a regular, water based clay, you can just add water if it gets too dry. Clay is porous, and will soak in that water and come back to a workable state over time. Just keep it in plastic. If you have created something and that gets to the bone dry state, it will be very difficult to get it back to workable consistency without breaking down the integrity of the piece.
Yes, use epoxy.
Add water to it.
It will be rock hard.
Yes, certain types of clay can dissolve in water. These types of clays are not fired, non oil based clays, but natural and air dried clays.
The best way to make homemade clay firm is to heat it up. You can heat the clay up in an oven.
A dried clay cannot be classified as a rock
"Caked clay" refers to clay that has dried out and hardened, typically forming a hard layer on the surface. It can be difficult to work with and often requires rehydration to make it pliable again for sculpting or pottery.
breaks up the hard, dried clay topsoil in preparation for planting
breaks up the hard, dried clay topsoil in preparation for planting
Dried clay
Yes, you can use acrylics on clay after the clay has been dried.
Yes, use epoxy.
It will be rock hard.
Add water to it.
desert gravel is just dried clay
Air dry clay can crack easily if it is not handled or dried properly.
sun dried bricks