Hot surface marking chalk High Temperture Marker - Marks Hot Steel 400�° - 1800�° F Key Benefits: Marks will not run, char, discolor, peel or crack. Marks are weather- and fade-resistant. Available size: Dimeter x Length 12mm x 100mm 13mm x 100mm 15mm x 150mm 20mm x 150mm 25mm x 150mm 20mm x 200mm 25mm x 200mm 20mm x 100mm 15mm x 150mm 30mm x 120mm Key Applications: Mark very hot coils, billets, slabs, bars, and ingots. Markal PK Paintstik Marker - Marks remove in pickling baths. Marks are removed completely in any standard acid pickling bath. No ghosting image on the metal surface. Marks on hot steel coils. Marks will not run, char or discolor. Pack: 20PCS/box 600PCS/carton, or1200PCS/carton