West Riding Blog

Paint Preservation, A Review of In-Can Biocides & Dry Film Biocidal Actives

Graham Lawson, Technical Manager Regulatory Affairs, Thor Specialities UK


The presentation will include an introduction to the basics of paint microbiology with a review of the spoilage micro-organisms and outline the need for preservation in both the wet and dry state. It will then go on to review the biocidal active ingredients that are available and supported for in-can preservation (product type 6) and dry film preservation (product type 7) in accordance with the biocidal product regulation, discussing their benefits and their drawbacks. The regulatory position of these biocidal actives will also be considered with an overview of the labelling requirements for treated articles.


Graham Lawson aGraham joined Thor Specialities in 2007 to take up the position of Formulation Development Chemist to support the development of the Microcare personal care products portfolio, progressing to the position of Technical Manager for Personal Care for the UK.

More recently, and in addition to his technical role, he has become increasingly involved in the varied, interesting and challenging world of regulatory having become part of Thor’s UK regulatory affairs team that spans all of our business sectors.

Before joining Thor Graham held the role of Development Manager at a medium sized FMCG company developing skin care and oral care products. His early career was spent working for Unilever at the Port Sunlight laboratory in the area of oral care research.


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