@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
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Silkscreens require a coating of photo-sensitive emulsion, essentially like a large piece of film. The screen & artwork are sandwiched in a large vacuum frame & exposed to light. Areas exposed to the light become impervious; the other areas are washed away. #VictorianPaperedWall . This tweet was posted on November 16, 2022.