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Rockwood companies co-exhibit at Chinacoat 2011: Holliday Pigments' technical grades for powder coatings
FOCUS savings is to be implemented by AkzoNobel. Around 70% of the savings will be made by the company’s performance and decorative coatings operations, with the remaining 30% of savings to be made by its speciality chemicals business. In China, AkzoNobel plans to invest $83 M in an automotive refinish coatings plant. This will be built in Changzhou and completion is expected by 2014. Original Source: Chemical and Engineering News, 31 Oct 2011, 89 (44), 20 (Website: http://www.cen-online.org) © American Chemical Society 2011
NEW PRODUCTS Amine-functional dimer technology for new green chemistry and sustainable epoxy coatings The Netherlands-based Croda’s newly launched Priamine 1071, a bio-based, fully renewable carbon dimer diamine, allows epoxy coatings formulators to meet environmental and safety requirements while increasing lifetime and speed of application. The product can be applied either as a lone curing agent or in tandem with other curatives. Croda offers four grades of Priamine, differing in dimer/trimer ratio and colour. Priamine 1071 allows for three-dimensional crosslinking as it is a combination of about 75% dimer diamine and 25% trimer triamine, with a colour rating in the Gardner scale of 10. Original source Pitture e Vernici – European Coatings, Nov/Dec 2011, 87 (6), 29-32 (Website: http://www.pittureevernici.it/)
Rockwood companies co-exhibit at Chinacoat 2011: Holliday Pigments’ technical grades for powder coatings Holliday Pigments, the specialist ultramarine business of Rockwood, showcased at the 6
ON
POWDER
16th Chinacoat show in Shanghai, China (23-25 Nov 2011) its high transparency Ultramarine TR and its high gloss Ultramarine HG fine grades for use in special effects coatings. The company is also presenting the acid-resistant, super durable Premier XAR for use in powder coatings. Pitture e Vernici – European Coatings, Nov/Dec 2011, 87 (6), 61 (Website: http://www.pittureevernici.it/)
Better protection for Luvitec BASF uses a new ethylene vinyl alcohol packaging to better protect its Luvitec high molecular weight powders from penetrating oxygen from the air. The EVOH film offers optimum sealing properties, good chemical endurance, good tensile strength and is impermeable to gases and fluids. Original Source: PPCJ, Polymers, Paint, Colour Journal, Jan 2012, 202 (4568) 50 (Website: http://www.polymerspaintcolourjournal.com/) © Quartz Business Media Ltd 2012
BOOKSHELF Metal Finishing – 2012 Organic Finishing Guidebook This annual booklet from Metal Finishing Magazine is an excellent means of up-dating modifications to existing powder coatings equipment and testing aids, and is a must-read for all those engaged in powder coatings formulation, manufacturing, marketing, and end use applicators. It will also be a useful introduction to those readers who are entering, or planning to enter, this exciting and versatile field of industrial coatings technology. Powder Coating with Robots and Dense Phase Technology is the title of a chapter defining the blending of these advanced technologies. The industry has moved a long way since the time when coaters would adapt large
C O AT I N G S welding robots to powder coating applications. These were unreliable devices occupying too much booth space affecting the efficiency of powder collection. Modern robotic systems have a virtually unlimited range of motion and are much more flexible than fixed axle machines. They follow the contour of the part more precisely maintaining a precise distance to ensure even coating and they have the mobility to coat hard-to-reach parts of the component. Even if the component is not hung properly these modern robots have the capability to identify a misalignment and adjust the trajectory of the spray unit. The real benefits of robotic spray are the uniformity of film thicknesses, reduced rejects, and increased output. Conventional spray guns use large quantities of air to convey powder and do not deliver powder fast enough to meet the needs of high volume powder installations. In order to deliver more powder a robotic system is best employed in conjunction with dense phase powder pumps. These pumps were originally designed to meet the needs of applicators requiring twenty second colour changes and reduce the downtime to a minimum. They operate by delivering more powder at low velocities and are basically a metering pump with two chambers. The first chamber draws powder in with vacuum and pushes it out by pressure. The second chamber operates in a similar manner with the timing opposite to that of the first chamber. When the first chamber draws powder in, the second chamber would force powder out by pressure. These alternating cycles deliver a smooth dense powder flow with no pulsing and very little air required to propel the powder. This provides higher transfer efficiency with less overspray, increasing line speeds, and could eliminate manual gun stations. A further benefit is the ability of this device to charge the MARCH 2012
NEW PRODUCTS Amine-functional dimer technology for new green chemistry and sustainable epoxy coatings The Netherlands-based Croda’s newly launched Priamine 1071, a bio-based, fully renewable carbon dimer diamine, allows epoxy coatings formulators to meet environmental and safety requirements while increasing lifetime and speed of application. The product can be applied either as a lone curing agent or in tandem with other curatives. Croda offers four grades of Priamine, differing in dimer/trimer ratio and colour. Priamine 1071 allows for three-dimensional crosslinking as it is a combination of about 75% dimer diamine and 25% trimer triamine, with a colour rating in the Gardner scale of 10. Original source Pitture e Vernici – European Coatings, Nov/Dec 2011, 87 (6), 29-32 (Website: http://www.pittureevernici.it/)
Rockwood companies co-exhibit at Chinacoat 2011: Holliday Pigments’ technical grades for powder coatings Holliday Pigments, the specialist ultramarine business of Rockwood, showcased at the 6
ON
POWDER
16th Chinacoat show in Shanghai, China (23-25 Nov 2011) its high transparency Ultramarine TR and its high gloss Ultramarine HG fine grades for use in special effects coatings. The company is also presenting the acid-resistant, super durable Premier XAR for use in powder coatings. Pitture e Vernici – European Coatings, Nov/Dec 2011, 87 (6), 61 (Website: http://www.pittureevernici.it/)
Better protection for Luvitec BASF uses a new ethylene vinyl alcohol packaging to better protect its Luvitec high molecular weight powders from penetrating oxygen from the air. The EVOH film offers optimum sealing properties, good chemical endurance, good tensile strength and is impermeable to gases and fluids. Original Source: PPCJ, Polymers, Paint, Colour Journal, Jan 2012, 202 (4568) 50 (Website: http://www.polymerspaintcolourjournal.com/) © Quartz Business Media Ltd 2012
BOOKSHELF Metal Finishing – 2012 Organic Finishing Guidebook This annual booklet from Metal Finishing Magazine is an excellent means of up-dating modifications to existing powder coatings equipment and testing aids, and is a must-read for all those engaged in powder coatings formulation, manufacturing, marketing, and end use applicators. It will also be a useful introduction to those readers who are entering, or planning to enter, this exciting and versatile field of industrial coatings technology. Powder Coating with Robots and Dense Phase Technology is the title of a chapter defining the blending of these advanced technologies. The industry has moved a long way since the time when coaters would adapt large
C O AT I N G S welding robots to powder coating applications. These were unreliable devices occupying too much booth space affecting the efficiency of powder collection. Modern robotic systems have a virtually unlimited range of motion and are much more flexible than fixed axle machines. They follow the contour of the part more precisely maintaining a precise distance to ensure even coating and they have the mobility to coat hard-to-reach parts of the component. Even if the component is not hung properly these modern robots have the capability to identify a misalignment and adjust the trajectory of the spray unit. The real benefits of robotic spray are the uniformity of film thicknesses, reduced rejects, and increased output. Conventional spray guns use large quantities of air to convey powder and do not deliver powder fast enough to meet the needs of high volume powder installations. In order to deliver more powder a robotic system is best employed in conjunction with dense phase powder pumps. These pumps were originally designed to meet the needs of applicators requiring twenty second colour changes and reduce the downtime to a minimum. They operate by delivering more powder at low velocities and are basically a metering pump with two chambers. The first chamber draws powder in with vacuum and pushes it out by pressure. The second chamber operates in a similar manner with the timing opposite to that of the first chamber. When the first chamber draws powder in, the second chamber would force powder out by pressure. These alternating cycles deliver a smooth dense powder flow with no pulsing and very little air required to propel the powder. This provides higher transfer efficiency with less overspray, increasing line speeds, and could eliminate manual gun stations. A further benefit is the ability of this device to charge the MARCH 2012