... ,discolor,char,peel or crack IntroductionDescription:Talc chalk for engineering and welding Item No.: SP8055Size: 80x5x5 mmMaterial:TalcGrade:First classWhiteness:90% ± 1Hardness1 ... , char, discolor, peel or crack when weldingApplication:Used by welders and fabricators for marking on metals, etc.Use:Mechanical manufacturing, Vehicles ...