RUBY BLOCKOUT: A bright red, high contrast water-soluble blockout for use on medium and fine mesh counts. Ruby Block is a favorite of many screen printers because of its coating quality and excellent mesh blocking characteristics. Outstanding, blemish-free coatability; High contrast coloration; Excellent mesh-blocking characteristics.
Goes on cleanly and smoothly; Good contrast to mesh facilitates easier touchups;
Won't drip through the mesh
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