Mainly oil paint on canvas.
Impressionists use Canvas, Paintbrush, Paint, Water.
By using paint brushes.
odk
The whole group if impressionists, especially Renoir.
Most of them did. However Renoir and Degas also made small sculptures. Degas and Mary Cassatt sometimes used pastels.
The Impressionists worked on site, or en plein air, painting quickly to catch the light. Some used watercolor sketches of scenes or their memory to paint in the studio also.
I use Urethane, Matrix paint is the namebrand I use but there are plenty out there, Dupont, Basf, PPG, and Sikkins
normal paint i guess...
You should not paint a thermocouple.
They wanted to catch and reproduce the ever-changing light, which is less interesting in a studio.
Gloss. You can use any type of spray paint for spray paint art, but be sure it is gloss.