Blue d detergent removable paint marker. Durable 1/8"-thick nib provides bold visible marks. Valve-actuated tip releases paint on demand for smooth continuous use. High-strength, lightweight barrel designed for industrial use. Rugged, vapor-lock cap design prevents nib dry-out when not in use. Marking range: 0 degree f to 150 degree f (-18 degree c to 66 degree c). Self-storing cap fits snugly on end of marker when in use. Recommended industries are as follows aerospace, automotive, building and construction, fabrication, hvac/plumbing, large equipment, appliances and machinery, ship and girder fabrication, welding, anywhere that removable marks are required. For bright, bold, long-lasting marks that go on easier, dry faster and stay brighter longer than ink, nothing beats real paint. Markal liquid paint markers can be used on almost any surface in cold to hot extremes. They are ideal for dry, wet or oily surfaces, including metal, wood, plastic, glass, rubber, paper, cardboard and styrofoam. For real paint that washes off quickly and easily with water or mild detergent, markal pro-wash w and pro-wash d markers are ideal. 48 Markers per case.