The most trusted & Popular product UNI-PAINT MARKER. Extensively used by professionals and industrial manufacturers. The versatile oil based paint marker writes on surfaces such as metal, plastic, glass, and fabric without losing its vivid color. Does not contain sulfur, silicon, etc. Waterproof even after writing. Ink doesn’t run even when used surface is heated.Features:Archival-qualityAcid-freeOil-paint ink is fade, water, and abrasion-resistantIdeal for projects that need to lastQuick drying inkMarks opaque and glossy on light and dark surfacesInk is permanent and certified AP-non-toxicPX-21, Fine line, blue