The Use of Light Stabilizers in Coatings with Acid Catalyzed - Quartz ...
The Use of Light Stabilizers in Coatings with Acid Catalyzed - Quartz ...
The Use of Light Stabilizers in Coatings with Acid Catalyzed - Quartz ...
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Eversorb AQ1/AQ3- Enhanced Color & GlossRetention for PU Waterborne Clear WoodCoat<strong>in</strong>gsRes<strong>in</strong> : Polyurethane(PU) Waterborne Clear Coat<strong>in</strong>gExposure Time : 1000 hours Additives:EVERSORB AQ1& AQ3Test Methods :ASTM G154-2 (Q-U-V <strong>with</strong> UVB-313 light bulb )Fig.1-1 Delta difference color (ΔE)Fig.1-2 60o Gloss0 hrs orig<strong>in</strong>alFig.2-1 Delta difference color (ΔE)0 hrs Fig.2-2 60o Gloss 90orig<strong>in</strong>al1000 hrs13.1Control 1000 hrs53Control1000 hrs 2 3%Eversorb AQ11000 hrs833%Eversorb AQ11000 hrs1.23%Eversorb AQ31000 hrs753%Eversorb AQ30 2 4 6 8 10 12 14 16difference color (ΔE)20 30 40 50 60 70 80 90 10060 o GlossΔE=13.1G=53ΔE=13.1ΔE=2G=53 G=83ΔE=1.2G=75After TestBefore TestCompare EV-AQ1 <strong>with</strong> EV-AQ3, if we want to enhance color retention, EV-AQ3 is better than EV-AQ1, If we want to enhance gloss retention, EV-AQ1 is better than EV-AQ3.Everlight Chemical Industrial Corporation 22
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