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European Coatings Show Preview December 2014 www european coatings show com 10 Focus Kevin Biller The Powder Coating Research Group Difficult to cure powder on plastics Limitations in powder coating technology There are still limitations in applying powder coatings on non conductive and temper ature sensitive substrates Kevin Biller The Powder Coating Research Group gives an overview of latest research and sustainability aspects  What are the limitations of powder coatings and how do you think these problems can be solved Kevin Biller The most promi nent limitation in powder coating technology is the dif ficulty in applying and curing powder on plastic substrates The concept of plastic sub strates encompasses a very broad spectrum of materials and the requirement to elec trostatically apply powder to a non conductive surface and then to form a fully cured film is quite a challenge Technolo gists have recently explored materials and application schemes aimed at making the use of powder on plastic an attainable goal Chemi cal companies are developing conductivity techniques that look promising At the same time formulators are creating new powders that can melt and cure at low temperatures These developments are care fully being investigated by industrial coatings users and I expect an introduction to the market in the near future  What is the most remarkable development for powder coatings within the last ten years Biller To be honest very little innovation has occurred in the field of powder technology in the past ten years When I think of industrial coating technology I recognise that this involves the intersection of application engineering and materials science Interesting advances have been achieved in application equipment but very few groundbreaking de velopments have occurred on the chemistry side of the equation In the application world the confluence of dense phase powder delivery cur rent limiting electrostatic mechanisms and simplified robotic engineering has sig nificantly advanced the pre cision of powder application These developments are all the culmination of years of engineering work and are a commercial reality today  In which aspect can powder coatings contribute to sustainability Biller Obviously powder coat ings already contribute to sus tainability by virtue of their amazing set of environmen tally attractive properties This list includes the ability to recycle and reuse overspray thus minimising the waste stream In addition the lack of any solvents or VOCs al lows finishers to coat their products without worrying that they might be polluting the earth s atmosphere And finally the excellent durability of this technology provides a longer product life span for the articles coated thus mini mising the need to replace consumer goods as often as those coated with less dura ble finishes xz Formulating low temperature curing powder coatings is a major future challenge Masthead European Coatings Show Preview Vincentz Network P O Box 6247 30062 Hanover Germany www european coatings com Editorial team Dr Sonja Schulte Responsible 49 511 9910 216 Kirsten Wrede 49 511 9910 212 Sonja Specks 49 511 9910 214 Damir Gagro 49 511 9910 209 Dr Michael Richter 49 511 9910 219 Vanessa Bauersachs Trainee 49 511 9910 217 Cornelia Fischer Assistant 49 511 9910 215 Fax 49 511 9910 299 E mail editors european coatings com Layout and production Maik Dopheide Responsible 49 511 9910 165 Sales Anette Pennartz Director 49 511 9910 240 Printer Hofmann Infocom AG Emmericher Straße 10 90411 Nuremberg Germany Copyright No portion of this publication may be reproduced or utilized in any form or by any means electronic or mechanical includ ing photocopying recording or by any information storage or retrieval system without permission in writing from the publisher Place of jurisdiction Hanover and Hamburg Germany Vincentz Network Hanover 2014 Europea n Coatin gs Show 2015 21 23 April 201 5 Nurem berg SiLibea ds SiLiglit Hall 6 Hall 7A Stand 6 345 Stand 7A 116 www sili eu More than 160 years SIGMUND LINDNER GmbHOberwarmensteinacher Str 38 95485 Warmensteinach Germany Phone 49 92 77 99 40 Fax 49 92 77 9 94 99 E Mail sili sigmund lindner com better grindingSiLibeads glittering your worldSiLiglit The Ge rman spirit of qual ity since 1 854 anz quer 277x123mm ecs preview indd 1 02 12 14 10 02