Our team

The senior management team at International Speciality Chemicals Ltd has  over 30 years experience working in the field of speciality chemicals. Our expertise ranges across many industrial sectors from inks and coatings, plastics, polymers and other specialist fields, such as road marking and petrochemicals.


The Americas team is a dedicated multilingual team, working to offer the best of the ISC product range to new customers spread throughout North and South America.


Our team of professionals is dedicated to providing the very best in customer service and technical expertise and look forward to assisting you with your technical queries

Senior Managment Team

David Priestley MBA DipM MCMI

Executive Director 


David is a chartered chemist, a member of the institute of management and holds an MBA and post-graduate management diploma from Henley.


With a career spanning over 25 years in speciality chemicals and petrochemicals, he has worked for multi-national oil and petrochemical companies such as BP, Total and Fina and well as over 8 years in technical and operational roles in the worlds largest chemical distributor. Before joining International Speciality chemicals, David worked as managing director for a speciality chemicals distributor.


He is based in the Mexico office and speaks fluent Spanish and French in addition to his native language, English.

Paul Baxter BSc (Hons)

Managing Director - Europe 


Paul is a graduate chemist from Northumbria University and a member of institute of management.


With a career in the chemical industry exceeding 25 years, he has worked for ICI Nylon, Du Pont, Croda, CPL Aromachemicals, and prior to joining ISC Ltd, Arizona Chemical.

Paul has held many varied roles at all of these companies as manager of Laboratory, Safety, Engineering, Production , Quality and most recently in sales.


Paul is based in our UK office


Sales Management

Gerhard Hartleben

Sales Director - Latin America and Emerging Markets


Gerhard manages and co-ordinates sales development throughout Latin America and other emerging economy countries.


Gerhard's career spans some 20 years in senior management and sales roles for such companies as Ennis, Avery Dennison and Stimsonite, giving him a wealth of experience in coatings applications and a special emphasis in the Road Marking sector.


He joins ISC via his sales and marketing company, Lotus ISM with a clear and concise agenda to develop the growth of ISC products in Latin America and beyond.

He speaks fluent Spanish, English and German.


Gerhard is based in the US

Julio Salgado Alvarez

Sales Manager - Latin America


Julio is a graduate of the 'Universidad de Tecnologico de Monterrey', in Mexico. With a degree in marketing he has worked for several multinational companies gathering a wealth of experience in sales management, customer relations and operations.


He joins ISC to focus on the Latin American markets with special focus on developing the ISC pigments and resins sales in this sector.


He speaks fluent English as well as his native language, Spanish.