We are working with company that is researching alternative solvents for a degreasing process at their lamp plant. The material to be removed is of the consistency of a used motor oil. This process has previously used methylene chloride, switched to n-propyl bromide, but is now using denatured alcohol. The alcohol is not providing the degreasing ability that the other solvents provided. They would like to replace the alcohol with a material that would not present an air or hazardous waste concern. Any suggestions, success stories and advice would be appreciated.
Thanks in advance.