Polyurethane
- Thread starter tryme
- Start date
It depends on what form you are working with.....resins may give skin sensitivity but whatever you do don''t burn it - the fumes are rich with carbon monoxide and hydrogen cyanide. I believe it can react with other chemicals (solvents) to produce phosgene too, but my memory is too distant to be sure on that one.
John
John
I have worked with both Polyurethane and Epoxy resins, Epoxy is by far a more irritating resin to work with, so much so I found polyurethane a pressure. That said good ventilation and protective apparatus is essential for any prolonged use...pinenot
By burn it do you mean in its post cured state? I.e once solidified? We do use moulding chambers which we often put with heat on but they are pressurised and when we let the air out there is a hose that takes the old fumes away before we open the door.
Many thanks
Many thanks
By burning I mean a naked flame and the fumes coming from that, but really I think you should contact the material supplier and ask for the COSHH information thats available.
John
John
Certainly I can't advise on appropriate safety gear here, but as far as I know the 149 is a simple dust mask for basic protection......I'd be checking out people like Drager for better information........they make respirators for the fire service.
John
John
Once polyurethane has cured it's fairly inert in conventional terms, but as already mentioned burning polyurethane gives off some pretty nasty fumes.
I presume from all said so far, that your working with two part polyurethane i.e. resin and an accelerator, do be warned that the accelerator is far more of an irritant than the resin. In my industry we always applied a barrier cream and wore gloves when working with any of the resins and although polyurethane was considered one of the safe ones, the same precautions were adhered too. Also full ventilation (high extraction rated fan) should be used until the resin has cured. Never take chances when you can avoid them...pinenot
I presume from all said so far, that your working with two part polyurethane i.e. resin and an accelerator, do be warned that the accelerator is far more of an irritant than the resin. In my industry we always applied a barrier cream and wore gloves when working with any of the resins and although polyurethane was considered one of the safe ones, the same precautions were adhered too. Also full ventilation (high extraction rated fan) should be used until the resin has cured. Never take chances when you can avoid them...pinenot
Thanks
I did come into contact midly with the part A (my nitrile glove had a hole in it and i picked up the part A that had some residue on the lid) but washed it off straight away and so far it doesnt look like ive had any skin irritation. This happened about 9 hours ago.
I do get concerned about sensitivity or development of occupational asthma but i suppose it comes with the territory.
I did come into contact midly with the part A (my nitrile glove had a hole in it and i picked up the part A that had some residue on the lid) but washed it off straight away and so far it doesnt look like ive had any skin irritation. This happened about 9 hours ago.
I do get concerned about sensitivity or development of occupational asthma but i suppose it comes with the territory.
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