The ink of the edding 8750 paint marker is heat-resistant up to 300°. If markings need to be heat-resistant at higher degrees, the edding 750, 751 or 780 paint markers are recommended. The paint markers have a permanent, lacquer-like opaque ink and are suitable for marking on almost all materials. The ink is heat-resistant up to 400°C and in the colours yellow (005), orange (006), brown (007), violet (008), pink (009), light blue (010), white (049) and silver (054) is still visible up to 1000°C.