Extended Open Time: These inks break new ground with a greatly extended open time. This gives you the flexibility to work with more colors without the ink drying in the screens. Permanence: Archival and lightfast these inks are permanent on most non-porous surfaces including: fabric, paper, plastic, vinyl, leather, metal, and more. Fabrics must be heatset for permanence and durability. Once set, the inks are fully washable and dry-cleanable on all natural and synthetic fabrics. Washability: Fully washable and dry-cleanable on all natural and synthetic fabrics. Waterbased: No smelly solvents and cleanup is easy with just soap and water. Color shown here for reference only.