Lawson's water-soluble red-coat blockout, sometimes called screen filler, can be used full strength or thinned with water. Use to "block-out" your stencil (emulsion-coated screen) and to add another barrier of protection to your emulsion. Great for blocking out pinholes and minimize the amount of tape around the edges of your frame. 

*This product is not recommended for water-based inks

CAUTION: This product can FREEZE during shipment. If you do not understand about the "freezing issue", please call us at 314-382-9300 for information on this subject. Lawson can not be responsible for damages due to freezing.