08-21-2017, 10:11 AM
I have never tested 3M talc belts. It was for me quite surprising for me to read that talc is a mild abrasive. From the everyday experience I know talc as baby powder or also talc tailor’s chalk.
Talc similar to graphite is known to me as lubricant. It has a mineral hardness of 1 on the Moh's scale (1 to 10), aluminium oxide is 9 and diamond 10. Fingernail hardness is circa 2.5!
For me talc is rather a polishing agent.
Jan
Talc similar to graphite is known to me as lubricant. It has a mineral hardness of 1 on the Moh's scale (1 to 10), aluminium oxide is 9 and diamond 10. Fingernail hardness is circa 2.5!
For me talc is rather a polishing agent.
Jan