- Training & Events
|PC Summit Presentations|
Tuesday, October 4th
Chemistry & Performance
Optimal Process When Layering Powder Coatings
Today there are many application where powder applied in layers can enhance the finished product for both performance and aesthetics. In this session we will cover the many ways processing parts with at least two powder coating layers should be considered. The benefits of the primer coat and technologies to consider, the things to keep in mind when selecting an appropriate primer and top coat as well as how these layers must work together to create the optimal bond and surface finish. Multiple layers are not always the best options so this session will discuss the questions to ask and the testing that should be completed to demonstrate the best solution for a given application.
Particle Size Distribution and Application Performance
Choosing Your Heat Source - Convection, Electric IR, Cat IR (which to use when)
Wednesday, October 5th
The Art and Science of Pretreating Plastics for Powder Coatings
Volumes of technical papers have been written about issues involved in the treatment of ferrous and aluminum surfaces prior to applying a coating. Many of those issues are mirrored in the surface treatment of plastic parts. But there are also process issues that are unique for plastic surface treatments. Most all of these are a consequence of a property that plastics share with many organic substrates: Extremely low surface energy. A Plastic Part’s low surface energy often requires a very low surface tension for any liquid that is used to rinse it. Otherwise, a beading risk at the end of the pre-treatment may well lead to a paint defect risk in the finishing operation. Unfortunately, water has very high surface tension. That doesn’t mean that we can’t use it for rinsing. In fact, we should use it. But we should understand the reasons for its high surface tension. Then we can devise strategies to overcome this property.
Smart In-line Technology
Abstract: Powder material handling is key to proper application management in today’s world of changing powder performance and finish effects. All powder manufacturers continue to enhance the performance and appearance properties their formulations provide. As the material properties change, so do the complexities associated with the application and material delivery consistency. To reduce complexity and improve performance, it is critical to consistently provide smooth and repeatable delivery across a broad range of materials with varying properties. This presentation will outline how
Smart In-line Technology offers tremendous flexibility and uniformity for all materials used in a variety of markets. This includes an increasingly broad variety of applications including metallic, texture and smooth finishes. This presentation will show that in all cases, operational consistency and control are paramount to finish appearance and process repeatability.
Improving Corrosion Resistance of Powder Coating Systems for ACE Applications
Allnex has recently developed a new generation of modified superdurable polyesters for powder coatings, demonstrating improved corrosion resistance for ACE applications. The -hydroxyalkylamide and TriGlycidyl-IsoCyanurate (TGIC- Araldite® PT 810) hardened binders based on these polyesters are expected to compensate observed performance gaps of novel anti-corrosion pre-treatment solutions like nano-ceramics or titanium/zirconium systems, relative to current systems like zinc or iron phosphate on steel and yellow chromate on aluminium surfaces.
The objective of this paper is to present Allnex’s findings that have improved corrosion resistance after salt-spray tests on both pre-treated and untreated shot blasted substrates for ACE and General Industry applications.
New Applications for Polychromatic Effect Pigments
Metallic FEVE Fluoropolymer and Superdurable Polyester Blends: an Affordable Choice for High Performance Powder Coatings
Fluoroethylene vinyl ether resins provide superior weatherability, corrosion and chemical resistance due to its unique chemistry. FEVE resin is the only curable and powder coating process friendly fluoropolymer which can pass AAMA 2605. A new technology developed by AGC Asahi Glass has shown that FEVE resin can be blended with superdurable polyester. Under proper formulations and curing conditions, the coating can be stratified into two distinct layers with FEVE clear coating on the surface as protective layer. The blends can meet the requirements of AAMA 2605. Metallic pigments can be incorporated in the blends and form a unique structure with metallic flakes staying in the interface of FEVE and polyester. Cost of manufacture of these blends is very competitive with the liquid paint which is currently dominating AAMA 2605 market. This paper will also review AGC’s work to improve impact resistance and dirt pickup resistance of FEVE powder coatings.
Powder Coatings Surface Appearance Characterization
Gas Catalytic Infrared Use in Complex Applications
Polyamide 11: The “Natural” Choice in Powder Coatings
Polyamide 11 Powder coatings are rooted in sustainable resources. Along with that, its thermoplastic nature and excellent properties make it a terrific option for protecting metal from corrosion, impact, abrasion, and more. A brief introduction to the chemistry and processing will be provided followed by performance data, and some real world examples of harsh environments where PA11 can be trusted. Comparisons to common thermoset chemistries will be made to point out the benefits of thermoplastics like PA11.
Developments in Curing UV Powder with UVLED Technology
The recent and rapid developments in UVLED technology are pointing to interesting and significant opportunities for UV-cured powder coatings. Initial test results show great promise for the use of UVLED for curing UV-cured powder coatings. UVLED systems are in fact capable of curing clear and black pigmented UV-curable powders. The presentation will illustrate testing sequences and data results of UV-cured powder coatings cured with UVLED and evaluated using photo-DSC.
Development of Conductive Primer for Efficient Application to Non-Traditional Substrates