This is the best and cheapest stuff
3M Welding and Spark Deflection Paper, 05916, 24 in x 150 ft,Brown
https://www.amazon.com/dp/B000PENDAK...9WZN3S147BYWDM
Xpel also makes one but it’s more expensive and I don’t think it’s as thick as the 3m welding paper.
XPEL TW18T40 Clear Tracwrap 18" x40' Temporary Paint Protection Film
https://www.amazon.com/dp/B076CVP65S...Y934XXHJ?psc=1