Leaves permanent, durable paint marks that dry quickly, wont wear off, and resist fading under the harshest conditions. Low in halogenated compounds and sulfur for maximum use in corrosion sensitive applications. Unsurpassed writing performance on oily, soapy and wet surfaces left by cutting fluids, rust protectants and metal forming lubricants. Xylene-free, without any California Proposition 65, EPA, HAPS, or SARA 313 listed chemicals.