Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 135,318 pages of information and 216,336 images on early companies, their products and the people who designed and built them.
of Clayton Lane, Clayton, Manchester.
1892 Company established by Thomas R. Hewlett.
1907 Incorporated as a Limited Company.
1914 Chemical manufacturers. Specialities: India rubber substitutes, chloride of sulphur, bisulphide of carbon, reclaimed rubbers. 
1961 JV with Marbon Chemical of USA to establish plant at Grangemouth to make Marbon Cycolac polymers and other synthetic resins