9th August 2012, 05:13 PM
Wax Wrote::0 Naughty Dinosaur!!!! the chemicals in marker pens, glue on stcickers etc can break down the plastic in those hard hats weakening them. I got my knuckles seriously rapped for writting on a helmet. Oil is a no no as well.
Of course someone might have been pulling my leg but I suspect not.
I bet you believe those dates they put on hardhats have some sort of health-and-safety law validity as well? (check the HSE website, there's nowt about them going out of date, one of Jack's favourite Facts ) - afraid its all a con by the manufacturers to make people keep buying the things. Hardhats are same Class 2 plastic as most bottles, and I haven't noticed supermarket shelves flowing with gloop as a result of the labels eating their way through...and b****r me, the solvents I use for cleaning paintbrushes seem to be in a hard-hat bottle! The worst thing for those types of plastics is the UV in sunlight, so logically hardhats should only be worn in the cabin with the shutters up (as with so many things)....
