فوم پروٹو ٹائپ کو ختم کرنے کے لیے گیسو کا استعمال

In this video, industrial designer Eric Strebel shows how he used many coats of gesso to get a nice smooth finish on a urethane foam prototype that he’d carved.

People in the comments say you can get similar results with layers of PVA glue which is cheaper and dries faster than gesso.

Source: https://blog.adafruit.com/2021/11/06/using-gesso-to-finish-foam-prototypes/