31 March 2010
PPG Architectural, Huddersfield Road, Birstall, Batley, West Yorkshire WF17 9XA
The West Riding Branch of the Oil and Colour Chemists is pleased to announce details of its 2010 Forum. This follows on from the success of past years events continuing the style of a "Fundamentals" forum in spring followed by an "Advances" session in late summer.
In recent years subjects have covered some of the Major raw material groups, Resins, Rheology, Functional Additives. In 2010 the important subject of "Performance Testing and Characterisation of Coatings". Covering topics such as Interactions in Coatings, Multi effect pigment measurement, Field testing and Outdoor weathering the Forum seeks to discuss a broad spectrum.
The March Fundamentals Forum is aimed at Technicians, Students and new comers looking to expand their understanding of Coatings and related systems. It also serves as a good refresher for more experienced to update their understanding. Attendance also counts towards your personal training plans and possible future OCCA membership grades.
Please review the abstracts and sign up for this useful Forum. We can look forward to a warm welcome from the West Riding OCCA team.
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Interactions in Coating and Printing Systems (Keynote Address)
Abstract: Coatings, inks and adhesives are, by definition, composite formulations, both in the fluid state and in the solid state. They are created to meet performance requirements whilst conforming to the many and varied standards and health and safety requirements that are in place throughout their assembly, application, use and disposal. Such compositions behave in the way they do because of what they are. They are what they are partly, but not completely, because of what they contain and how they have been put together. Physical and chemical interactions have a very significant part to play in the assembly and behaviour of such composites. In a way they also have a part to play in analysis and characterisation opportunities. The compositions are analysed and characterised on the basis of what they are and what is expected of them as well as on the basis of how they perform under given situation. The presentation will address the interactions that are at play in formulations and compositions and their origins. Factors influencing the interactions will be considered, together with some typical consequences.
Measurement of Multi effect pigments
Biography: Raf Mulla is the applications manager for Xrite industrial products in the UK. Has worked for Xrite and formerly Gretag Macbeth for the last six years, previously having worked as an R&D technologist for Crown Wall coverings in Blackburn.
Abstract: The last decade has seen huge strides in the development of special effects coatings, such as the introduction of Xyrallics and multi pigment effects but without the accompanying strides in the ability to reliably measure and quantify these coatings once that they have been applied. Traditional multi angle instruments have used up to 5 angles in a single plane to characterise special effect coatings. However the visual appearance of current multi effect coatings, with the number of illuminated surfaces is not adequately captured by current single plane measurement devices. Hence Xrite has developed a new MultiAngle measurement device which meets new industry standards such as ASTMS 25398 08 std for effect coatings. The instrument captures up to 19 spectral curves from the measurement of a given sample, so that a whole new metric, xDNA, can be generated with which to characterise these effect pigments, robustly and reliably.
Field Inspection For Paint Processes
Biography: After 13 years in the semiconductor industry in a product and process development role, John joined Elcometer in April 1983 as Projects Manager.
Over the next few years John held a number of posts in the company including UK Sales Manager, Quality Manager, General Sales Manager and he has been the Technical Support Manager since 1998. In this role, John is responsible for Elcometer product support including customer advice, service and repair, product training, product conformance to standards, new OEM product planning and the management of the quality and environmental management systems, including Elcometer's certification to ISO 9001 and ISO 14001.
As a member of CEN/TC139/SC1 Working Group 2 and Working Group 12, John has been involved in developing a standard for the method for testing and reporting coating thickness for painted structures and two standards for field-testing of the adhesion of anti-corrosion coatings. John is currently working on a standard for porosity testing in coatings on metal substrates for WG 12.
John is a member of ASTM D01 and over the past several years has attended the D01 ASTM summer and winter task group meetings representing Elcometer in both coating inspection and physical test groups. In January 2009 he was appointed as chairman of sub-committee D01.23, Physical Properties of Applied Paint Films and will take over as Chairmen of D01 Main Committee for a two-year period from January 2010 to December 2011. John is also a member of the NACE Task Group TG 392 dealing with PSPC inspection issues.
As a member of the Institute of Corrosion for over 20 years he is a former Chairman of the North West Branch, a Member of Council for the Institute of Corrosion, a member of the Professional Development and Training Committee and supports both BSI and ASTM coating committee work. John was elected a Fellow of the Institute of Corrosion in July 2009.
Other interests include Rugby Union (as a supporter of the local club), reading, writing, drawing and painting.
Abstract: To achieve a protective paint coating process that delivers the target service life it is vital that adequate quality control processes are undertaken during the application of the coating.
This means that the surface to which the coating is to be applied should be made clean and dry and should be prepared to the correct profile, that the coating is applied to the correct thickness and that parameters such as adhesion and porosity, that may be defined in the specification, are met in full.
There are a series of inspection tasks that can be applied to each of the stages of the coating process and this presentation will describe the principles of these different inspection tasks including:
Outdoor Weathering Must Verify Accelerated Testing
Biography: Jim Regan is the General Manager for Q-Lab Europe Ltd. Jim joined Q-Lab in April 2008 after working as a self employed sales agent for a Canadian company selling into the European market. His background is in engineering having trained at Austin Rover as a multi trade maintenance engineer. He switched from being hands on to sales work in the late 1990s and has held a number of positions for various companies since then.
Abstract: Outdoor exposure racks and accelerated chambers are the two main methods for testing materials for weathering durability. In the fast paced current world, time constraints have determined that outdoor weathering exposures take too long to provide the necessary results. The emphasis has therefore been placed on accelerated laboratory testing to provide data on the long term outdoor durability of many products. In many cases now, outdoor exposure is not even performed or required. Not all of the factors of weathering can be recreated in an accelerated chamber however, and there are a number of other variables that may cause an incorrect result and therefore the wrong conclusion. Cycle times and the effect on the exposed specimens are different between the outdoors and the chamber. Over-exaggerated test conditions may also cause the wrong failure type. Too much reliance only on accelerated testing can be potentially misleading. In this paper we will discuss the inherent problems that accelerated testing can have, and show techniques that can be used to ensure that the results from the accelerated testing are correct. Outdoor weathering must be used to verify the accelerated testing, and it is possible with the correct testing procedure to get meaningful data from an outdoor test in a short time frame. Those techniques include correct experimental design, proper evaluations, control materials, and the use of reliable statistical analysis. These processes will allow the user to determine acceleration and correlation factors and will ensure that the accelerated testing is giving the right results.
Non-members will receive an OCCA membership application form, which is included in their rate, to be validated on attendance.
Following the event, a certificate of attendance will be provided to delegates, along with a CD of the presentations. This will validate 'Fundamentals' for training and Continuing Professional Development recording, and the opportunity for later reference and further study of the chosen subject area.
Please register for the seminar
There will be a cancellation charge of £20.00 for any delegate who either fails to turn up or cancels after Wednesday 24th March 2010. Name substitutions may be made at any time.
For further information on the technical programme contact Steve Birkett (email: Stephen.birkett@elementis-eu.com, or for registration information contact Yvonne Waterman (tel: +44 (0)1525 372530; email: yvonne@occa.org.uk).