How To Create Hand-Cut Positives | Screen Printing Guide

Hand-Cut Masking Film

These consist of a non light sensitive membrane coated onto a clear polyester support. The image is produced by cutting through the transparent tinted emulsion layer and then peeling out the non-image areas.



  • Carefully secure your artwork down onto a drawing board with masking tape.
  • Lay a sheet of Automask Rubyplus SM3 over the artwork. Ensure it is satin side up and completely flat before sticking down with tape.
  • A stencil knife is the ideal cutting tool for this film, it has a barrel handle for easier control and manouverability.
  • Use just enough pressure on the knife to cut through the ruby layer only.
  • Never use a dull blade.
  • When using a stencil knife always try to cut toward yourself.
  • Try to keep the knife as upright as possible.
  • To remove a cut element of Automask Rubyplus SM3, carefully lift an edge and peel away.
  • Remember, you are not cutting a stencil - you are cutting a positive! The image that is left in the Automask Rubyplus SM3, will print!

Acknowledgement:

CPS would like to acknowledge and thank Tony Brathewaite & Simon Walker of London College of Communication/University of the Arts London for allowing us to use this video and help us in the creation of this how to screen printing guide. 

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