Posted By stephen d clarke
Hi,
To my mind acetone would be the obvious choice as its WEL limits are higher, I think it is less of a hazard with regards to health, skin absorption etc but it is more volatile and therefore more of a fire risk. I guess it depends on the quantity used and exposure potential i.e. down to your COSHH assessment. I think MEK is in the table for biological monitoring. In the past we moved from acetone to MEK but then back to acetone a year or so later for a wire cleaning process superconductivity process.
steve

Posted By Chris Packham
There is an alternative method of cleaning rollers, etc. that I have seen used with considerable success, but it is not the cheapest in terms of setting up.

This uses CO2 in pellet form and compressed air to shot blast the rollers. Benefits are that there are no solvents to handle or dispose of, it is relatively quick and generally safe - given adequate ventilation.

However, there is a capital cost in setting up the system.

If you are interested drop me an e-mail and I will send you information. (Moderators - in anticipation that - as has happened in the past - someone will complain that I am touting for business, I have no financial connection at all with the company that supplies this and am only attempting to be of help.)

Chris