Brushstrokes - October 2011 - Surface Coatings Association of New ...

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This edition was intended to have Titanium dioxide as its theme but as usual following the conference, there is some spill over in this issue and for the next. In this edition we have the full transcript of Adam Berry’s article kindly given to us by Nuplex Industries Ltd. Adam has joined Rocket Lab Ltd, a new Zealand based company that is developing niche technologies in electronics and propulsion system for rockets. Who would have believed that paint technology could lead to Rocket Science? Of course some would say that Rocket Science is no longer Rocket Science! NASA are planning to hand launch capability over to the private sector on the grounds that rocket science has become common science. I think there may be some pain ahead. Speaking of rocket science, we see from Peter’s painted memories, that early titanium dioxide started life as a coprecipitated anatase and barium sulphate and eventually to uncoated grades in the early 1940’s. Uncoated titanium dioxide has highly catalytic effect on any organic binding resins and must have produced some fierce chalking. The advent of surface treated grades greatly improved the performance as we see today. Couple that with the improvements in additives and titanium almost stirs straight into many paint formulations without the need for prolonged dispersion. When I started in the paint industry, everything was done in a ball mill, even laboratory samples. How many people even remember how to formulate for a ball mill? Throughout the time that I have been associated with the paint industry, the titanium dioxide producers have been threatening short supply and high prices as the cost of production and the market price squeezed profits, or so we were always lead to believe. We even had some Japanese suppliers use the New Zealand market to get established and then “turn off the tap” so to speak. Titanium is probably better value in real dollar terms than it has ever been and with a rebound recession predicted, the paint industry will no doubt feel the effects very early in the cycle, resulting in less pressure on prices. Let’s hope our own paint industry will be in position to take advantage of it. Brushstrokes Editorial The committee is in the advanced stages of planning for a seminar to be held in mid October, similar to the very successful one held back in 2004. The theme is basic paint technology, intended fort technicians, people in sales that think they know it all but often don’t, old hand like me that have forgotten it or have holes in their knowledge they don’t even know about, or anyone else that is interested to learn, or re learn, some of the fundamentals again. With the changes that have taken place in the last 10 years or so, there is always something new to be learnt. Look out for the notice later in the journal. In that regard, the Coatings and Polymer Science course is still available at the University of Auckland. It is administered by Neil Edmonds and run at Tamaki Campus in Glen Innes. The course has been amalgamated into the polymers and plastics program and run in conjunction between the School of Chemical Sciences and Engineering and Materials Science. More details next issue for those that would like to take their knowledge to a higher level with a recognised qualification. CJB. The theme of the next issue is Roof Coatings. Any technical, historical or market oriented articles to do with the paint for roofs, painting roofs or the substrates that roofs are made from, will be gratefully accepted. Please send any ideas, articles or suggestions to the editor. Email: cbolt@xtra.co.nz Phone: 021 897 844. or by mail to PO Box 1282, Pukekohe 2340 Advertising enquires: Marina on 021 781 968 or marina@apconz.co.nz Visit the SCANZ website www.scanz.org.nz SURFACE COATINGS ASSOCIATION OF NEW ZEALAND 1
Page 1: www.scanz.org.nz OCTOBER 2011 Cryst
Page 5 and 6: Fig. 2 Some white pigment sales. Fi
Page 7 and 8: A Naturally Occurring Sub-Micron Ti
Page 9 and 10: Table 4a - test results for 7% TiO2
Page 11 and 12: the shrinkage factor) and is thus i
Page 13 and 14: Bridging the gap in performance def
Page 15 and 16: the flow and levelling properties a
Page 17 and 18: figure 4. Based on these result a f
Page 19 and 20: FRANK JOSEPH AITKEN-SMITH One of th
Page 21 and 22: Evonik Tego wins “Ringier Technol
Page 23 and 24: Rohm and Haas New Zealand Ltd • P

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