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RadTech
UV/EB Technology Conference & Expo 2008
May 4-7, 2008
Lakeside Center at McCormick Place
Chicago, Illinois - United States of America
WOOD COATINGS
Accelerated Weathering
of Wood Coatings by QUV-A with Direct Water Spray
Bob Wade, Bayer MaterialScience
Abstract:
Accelerated weathering of coatings for wood by QUV-A with direct water
spray closely approximates natural weathering by simulating the erosion
and cleaning typical for exterior coated wood, increasing the moisture
content of the wood above what is typically found in accelerated test
procedures, and subjecting the coating to a much greater thermal shock
than condensation methods. This paper examines the performance of
various exterior wood coatings under this modified QUV test method.
Influence
of Synthetic Silica on the Matting of 100% UV - Coatings
Hans-Dieter Christian, Evonik Degussa
GmbH
Abstract: Dull matt UV-Wood Finishes are still a challenge
to produce for most of the paint manufacturers. The limitation factors
are the reactivity of the UV- resins and their viscosity increase
when matted with common matting agents based on synthetic silicas.
Synthetic thermal - and precipitated silicas with a special particle
morphology and surface structure are developed and to provide a
new horizon of matting 100% UV- Clear Coats. In this study by comparing
the State of the Art vs. this new technology of synthetic silicas
the focus will be held on gloss vs. viscosity behaviour in a specific
UV-Wood-Coating formulation. Photographs of Plasma etched surfaces,
REM- and TEM-Thin -Cut photographs will be shown to demonstrate
the interaction of the relevant binders with these new developments
of performance silicas.
Novel
Approach to UV Curing for PVC and Wood Applications
Jon Marson, Phoseon Technology
Abstract: UV cured coatings continue to increase in popularity
for use on prefinished wood and PVC products. This paper outlines
a nove approach to the curing of such systems using solid state
UV curing systems coupled with low-cost and low maintenance inerting
systems to provide curing of UV materials at production speeds with
significant advanatges when compared to existing UV curing systems.
Novel
Non-halogenated UV/EB Curable Flame Retardant Coatings
using Unique Water Compatible Oligomer
John L. Garnett, Radcure Inc. Australia
Abstract: Prefinished products are important in the building
industry especially for timber substrates, typically plywoods (panelling,
ceilings), hardboards (flooring), particle and MDF boards (melamine
laminated or powder coated) to give improved properties. Strict
building regulations in some countries, especially the lack of flame
retardancy, limit the scope of UV coatings for these applications.
In the proposed paper describes the commercial potential in the
timber and other industries of novel non-halogenated UV/EB curable
flame retardant coatings.
New UV-Curable Powder Coating Formulations That Can Create Metallic Finishes On Wood
Ryan Schwarb , Keyland Polymer LTD.
Abstract:
UV-curable powder coatings are known to provide durable finishes for wood products but are often believed to have limited aesthetic properties. This paper demonstrates how new metallic powder formulations make it possible to give wood the appearance of chrome, aluminum and other metals. These new aesthetic possibilities combined with the economic advantages and superior performance properties of UV-curable powder coatings have the potential to significantly expand the range of applications for wood and create new market opportunities.
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