Markal Industrial Paint Marker Part # 96871. WHITE. The PRO-LINE Fine and Micro liquid paint markers combine the durability of paint with the marking precision of fine, valve-actuated tips. Whether marking on small surface areas or where easily-readable marks are required, the small tip sizes provide highly-visible, sharp lines for greater mark identification. SURFACE USES: Steel and iron, Cloth and fabric (textiles), Plastic, Glass, Pipes and tubes.