Stanley's Sign & Screen

Ultra-Block Screen Blockout

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Ultra-Block Screen Blockout

ULTRA-BLOCK® is a low viscosity, water-soluble blue blockout designed to fill the open areas of the screen not covered by the emulsion. Use for masking several designs on a screen until ready to print or for multi-color work. ULTRA-BLOCK® is also very good for touching up pinholes. 


  • • Dries fast
  • • Easy to use
  • • Useful with all mesh counts
  • • Pleasant odor
  •  • Coverage in one coat
  • • High contrast blue color
  • • Durable / High abrasion resistance
  • • Easily removed with water
  • • Non-Hazardous
  • • Biodegradable / Drain Safe

Available In: Quarts, Gallons

Please Contact For Pricing, Purchase, or Information.


Sold At: 
Stanley's Edmonton
Stanley's Vancouver
Stanley's Calgary