Will oil based paint dry on cardboard?

Yes, oil-based paint can dry on cardboard, but it may take longer than it would on other surfaces due to the porous nature of the cardboard. The drying time can be affected by factors such as humidity and temperature. It's important to apply a primer or sealer before painting to improve adhesion and reduce the risk of warping or damage to the cardboard. Additionally, using oil-based paint may cause the cardboard to become saturated if applied too thickly.