Trades-Marker® Dry Universal and Welding Refills Markal TRADES-MARKER® DRY graphite and colored Refills can write or mark on all types of surfaces and materials (dusty, rough, smooth, greasy, wet, dark, etc.) Markal Silver-Streak® and Red-Riter® welding refills for Trades-Marker® Dry make torch-resistant marks that will not burn or rub off like soapstone. Ideal for fine line marking during metal layout and fabrication, these highly visible marks illuminate when cutting or welding. Graphite and colored Refills - can write or mark on all types of surfaces and materials (dusty, rough, smooth, greasy, wet, dark, etc.). Marking range < 40°C Silver-Streak® Refills - Unique silver reflective lead perfect for welding and fabricating Red-Riter® Refills - Red lead perfect for welding and fabricating on aluminum, stainless steel and other light metals Durable and heat-resistant marks last longer than soapstone Ideal for use on and safe for all metals; clean, oily, or rusty For use only with Ma