I have recently gotten into painting rock with acrylic paint and then hiding them all over the country.
That's really neat! Sounds like fun! Did you choose to use acrylic paint because it's more water-resistant when dry?
Yes, it's more durable and dries fast when your painting. There're Facebook pages dedicated to rock painting. Some are amazing.
Painting
Painting is the practice of applying paint, pigment, color or other medium to a solid surface (called the "matrix" or "support"). The medium is commonly applied to the base with a brush, but other implements, such as knives, sponges, and airbrushes, can be used. The final work is also called a painting.
Painting is an important form in the visual arts, bringing in elements such as drawing, gesture (as in gestural painting), composition, narration (
Acrylic paint
Acrylic paint is a fast-drying paint made of pigment suspended in acrylic polymer emulsion. Acrylic paints are water-soluble, but become water-resistant when dry. Depending on how much the paint is diluted with water, or modified with acrylic gels, mediums, or pastes, the finished acrylic painting can resemble a watercolor, a gouache or an oil painting, or have its own unique characteristics not attainable with other media.
History.
Otto Röhm invented acrylic resin, which was quickly transformed into