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Posted By Bill Elliott
Your assistance please esteemed colleagues. Our Nursery manager is concerned about the car tyres in the play area - is anyone aware of significant risks that I should be making her aware of. The tyres are used in various ways eg stepping in/out of; as swing seats; as hoops (!!)
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Posted By Chas
Tyres do have metal reinforcing wires embedded in the rubber. When used in your situation the wires can end up protruding through the tyre. Depending on how many you have in use they could lead to an increase in the potential for fire (arson) and the eventual disposal could prove costly.
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Posted By Jeffrey Watt
Bill
Many play companies use tyres as swing seats etc. The company we use source them from the manufacturers as quality rejects (perfect to the eye and safe for play use but not strong enough for the road), they then coat them in yacht varnish to prevent the carbon black coming off on the kids clothes. We do weekly checks on all our play equipment so any wear or tear would be picked up and we feel that is adequate.
Drill drain holes in the bottom to let water out cos if you don't that will give a breeding ground for mosquitos and bacteria which you don't want near the kids.
Hope that helps
Jeff
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Posted By John Holland1
Has the cadmium content of the rubber tyre been considered before drilling and creating dust?
Just a thought
John
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Posted By Jeffrey Watt
John
No it wasn't considered. Please elaborate.
Jeff
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Posted By Heather Collins
There is no significant chemical risk from drilling holes in car tyres. Not sure where you got the cadmium idea from? - there are tiny percentages (as an impurity) in the zinc oxide used as a compounding ingredient, but by the time the various ingredients are combined into the finished product they can be considered as a single substance for risk assessment purposes. Most manufacturers of any rubber product these days avoid using ingredients with cadmium in - our customers require us to do so.
As someone said above there's more risk from the metal wires sticking through the beads or the outer casing as the tyre becomes worn.
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Posted By Descarte
I dont think even using an high powered electric drill would raise much airbourne materilas when drilling through soft rubber tyres.
I really do enjoy reading posts such as the above where it can be clearly seen, a sensible, practical, realistic, well thought out approach to dealing with a safety related problem in a sensitive school) area none of this conkers bonkers stuff.
Good work, and thanks for sharing
Des
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Posted By Bill Elliott
Thanks to all for the responses to date.Very helpful. Reference the zinc oxide, I am reliably informed that this is a tiny part of the 4% overall of vulcanising chemicals - the main bulk of the tyre is (you guessed it) rubber at 38%, then fillers (carbon black, silica, carbon chalk) at 30%, 16% is reinforcing eg steel, rayon, nylon, 10% plasticisers and various odds and sods making up the remaining balance.
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Posted By MSE
What about the reason that these spare tyres are now 'spare'? Might be conkers-bonkers, but is there any reason to suppose that some of these tyres might not have nails or glass embedded in them somewhere?
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