Presenters Name: Kevin Roden

Employment Title: Technical Sales Support Specialist

Company: Arxada

Biography: Kevin Roden graduated from the University of Sydney with a degree in Microbiology and Pharmacology. He has had extensive experience in microbiological testing and has been employed as Manager for two consultant Microbiological Testing Laboratories and Quality Assurance Manager for a vaccine manufacturer. Kevin has been involved in the coatings industry for over 30 years while working for biocide manufacturers, recommending biocides for varying applications and evaluating their performance in industrial and personal care products. Kevin is currently employed by Arxada in the position of Technical Sales Support Specialist to assist manufacturers to select the best biocide options for their products and to help overcome any microbiological problems they may encounter. Kevin is currently the Technical Secretary for the Dry Film Working Group of the International Biodeterioration Research Group.

Presentation Title: 50 years of Evolution of Biocides for paints and Coatings

Presentation Abstract:  The protection of coatings from microbial contamination and degradation has been critical since they were first developed. Many biocides were developed during the first half of the 20th century and by the 1970’s their use was well understood by formulators enabling successful preservation of all coating product types. Back then there was no NICNAS, no AICS, no BPD, no WWW.

The changes that have occurred since then are beyond the imagination of 1970’s formulators with many staple biocides now out of favour or restricted regulatory changes along with the rise of ingredient selection led by consumer demand rather than science. This paper will look back at the preservative systems in use 50 years ago and how they have changed to come to current favoured systems in use.