Marsh Rolmark Blue Ink - 1 Quart (Part #20908) Marsh Rolmark Blue Ink (Part #20908) is a fast-drying, waterproof, and permanent stencil ink formulated for use on both porous and non-porous surfaces. Trusted for industrial applications, this ink meets government performance specification CID A-A-208B and delivers bold, long-lasting results. Key Features: Surface Compatibility: Ideal for wood, cardboard, paper, metal, and more Fast-Drying & Waterproof: Smudge-free, weather-resistant marks Permanent Formula: Built to withstand harsh environments Cleanup: Use Marsh Rolmark Solvent for easy maintenance Compatible With: Marsh Fountain Brush - 30322 Marsh Fountain Rollers - RFR200 RM20 Roller With RM50 Ink Pad Spray Gun Bulk Discount: Save per quart when purchasing a full case of 12 - discount automatically applied at checkout. Perfect for packaging, warehousing, and manufacturing environments where clarity and durability are essential. Click Here to See Other Rolmark Colors and Sizes