Sure, but no one is replacing their hard hat after having bonked their head lightly on a door frame. Scuffs and light marking shouldn't affect the functioning o

Sure, but no one is replacing their hard hat after having bonked their head lightly on a door frame. Scuffs and light marking shouldn't affect the functioning of the hard hat but still be a rough indicator of job-site experience -- until it gets replaced in a more serious and you start over of course, but thats not really a bad thing either in my opinion.