Paint & Coatings Industry - May 2008 - (Page 42)

Waterborne Alkyds Break Through the Performance Barrier FIGURE 5 | Current and projected VOC regulatory standards. OTC Current1 High Gloss, 70+ @ 60 Semi Gloss or Non-Flat, 5-70 @ 60 Flat, 15 @ 85, 5 @ 60 1Expected 2 Will CARB Current1 250 150 100 SCAQMD Current 50 50 1002 250 150 100 to move closer to SCAQMD numbers by 2010 be lowered to 50g/L in 2008 FIGURE 6 | Dry times for clear base formulations, Beckosol AQ vs. commercial wood stain. FIGURE 7 | Yellowness values for clear varnishes. need to constantly reformulate. As regulatory bodies attempt to continually lower the VOC limits, paint companies have been faced with the need to reformulate. But because of the performance limitation of conventional low-VOC formulations, many paint companies have justifiably argued that the current low-VOC technology will produce coatings without the performance quality or durability ratings, and thus will result in higher levels of VOCs (painting with low-VOC paints twice within five years vs. just once with the higher VOC alternative.) However, as coating technology advances and high-quality paints with low VOCs prove themselves in the marketplace, the regulatory agencies will eventually force lower VOC limits on the industry. Companies that adopt Beckosol AQ’s new alkyd latex technology now will be well positioned to compete in this changing marketplace when the next round of regulations force companies to reformulate. Figure 5 shows the current and projected future VOC limits of three major government regulatory bodies: SCAQMD (Southern California Air Quality Management District); CARB (California Air Resource Board); and OTC (Ozone Transport Commission), based in the northeastern United States. As shown, the SCAQMD standards will soon require coatings manufacturers to produce paint with no more than 50g/L VOC content in gloss, semi-gloss and flat formulations. CARB and OTC standards are expected to move toward these limits by 2010. Using Beckosol AQ’s new alkyd latex resin technology, coatings manufacturers can achieve these VOC limits today, and be in compliance with current and future limits for several years to come without the need to reformulate. Performance Testing Extensive performance testing was conducted comparing Beckosol AQ alkyd latex resin technology with commercially available exterior wood stains for dry times, color stability and weatherability; as well as comparison to traditional waterborne latex acrylic formulations for gloss rating, block resistance, adhesion and stain blocking characteristics. In all test procedures, Beckosol AQ demonstrated superior performance at VOC levels well below the regulatory limits currently in place. ΔE 6 Months 8.01 5.79 9.79 5.09 7.69 6.14 4.01 6.51 4.3 5.67 FIGURE 8 | Preliminary weatherability analysis. Series 06002 Cedar Siding 45 Degree South Stain Commercial Stain Beckosol AQ-100A w/ additives Beckosol AQ-100B w/o additives Beckosol AQ-200A w/ additives Beckosol AQ-200B w/o additives ΔE 3 Months Fast-Drying Clear Base Formulations In both long oil (Beckosol AQ 100) and medium oil (Beckosol AQ 200) formulations, the new alkyd latex resins exhibited faster dry times than commercially available wood stains, as shown in Figure 6. At each measurement point on the drying scale (set-to-touch, 42 MAY 2008 | W W W . P C I M A G . C O M http://WWW.PCIMAG.COM

Table of Contents Feed for the Digital Edition of Paint & Coatings Industry - May 2008

Paint & Coatings Industry - May 2008 Contents Viewpoint Industry News Calendar of Events Company News Mergers and Acquisitions Names in the News Charlotte Dining Guide Exhibits-in-Print Waterborne Alkyds Break Through the Performance Barrier New Matting Agents for Waterborne Coatings and Varnishes Silicon-Based Technology for the Coatings Industry High-Performance Microgrinding The Development of New SMA Esters as Pigment Dispersants for Waterborne Coatings and Inks The Right Choice New Coating Technology Expands Color Choices for Vinyl Building Products BioPreferred Federal Biobased Products-Preferred Procurement Program European Union's REACH Regulation Sustainability - The New Nano Improved Dirt Pickup Resistance Critical to Future Coating Innovation NanoNews Protective Coatings NDT - Energy-Saving Paint Static Electricity - The Hidden Danger in Hazardous Areas Wacker Chemie - A Profile of Success Materials Watch Products and Literature Classifieds Advertiser Index

Paint & Coatings Industry - May 2008

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