[Fot] Seat belts

[Mark J Bradakis]

Back in my climbing days when I had my sewing business, I was interested 
in how nylon ropes and webbing deteriorated.  The number 1 killer was UV 
light.  And climbing gear, aat least when being used and not gathering 
dust in the basement, gets a LOT of exposure to sunlight.  The second 
major cause of wear was abrasion.  Obviously having a climbing rope 
slide over a rough edge is bad for it, but the less obvious and more 
common case is gritty dust particles getting trapped in the weave, 
causing a little bit of abrasion every time it moves.

Luckily, though, it is always cloudy and raining at racetracks, so seat 
belts never see sunshine, and there is never any dust blowing around 
that can settle on the webbing as the cars sit in the paddock.

mjb.