UV Technology For Corrosion Resistance Ben Curatolo BEN@LCCOAT.COM Light Curable Coatings We Make It Exciting To Watch Paint Dry
The Advantages Of Ultraviolet (UV) Coating Technology Are Well Documented Solvent-Free Reduction Of VOCs Reduction Of HAPs Faster Cure Improved Efficiency Source Reduction Sustainability Non-Flammable Lower Insurance Costs Healthier Work Environment Reduced Regulatory Impact Reduced Scrap And Waste Lower Applied Cost Reduced Overall Cost
UV Coating Technology Is Widely Used For Decoration And Protection In Many Different Applications In A Wide Range Of Industries
The Suitability Of UV Technology For High Performance Corrosion Resistant Applications Has Now Been Demonstrated Industrial And Aerospace Applications Field Application And Cure Using Portable Lamps Protection Of Steel Surfaces And Large Structures Protection Of Aerospace Aluminum Alloys
Corrosion Is A Tremendous Problem For Many Segments Of The U.S. Economy Aircraft Motor Vehicles Ships Railroad Cars Bridges Electrical Utilities Petroleum Refining Gas Pipelines Liquid Pipelines Home Appliances Food Processing Water Systems Sewer Systems Pulp & Paper Processing
Annual Corrosion Costs In The United States $276 Billion Annual Cost In 2001 Office Of Infrastructure Research And Development U.S. Federal Highway Administration Report No. FHWA-RD-01-156* $400 Billion Annual Cost Presently U.S. Government Accountability Office (GAO) *CC Technologies And NACE International, September 30, 2001
Commercial Materials Typically Used For High Performance Corrosion-Resistant Applications Are Epoxy And Polyurethane Paints Epoxy Paints As Primers And In Applications Where Maintaining Color And Appearance Are Not Critical Polyurethane Paints As Topcoats And In Applications Where Color And Appearance Must Be Maintained
Disadvantages Of Epoxies And Polyurethanes Limited Application Conditions - Temperature And Humidity Two Part Systems With Corrosive Or Toxic Components Limited Pot Life - Viscosity Increases From Mixing Until Cure Extended Period Of Time Before Full Cure Is Achieved Components On The Toxics Release Inventory (TRI) Pollution From Solvents, VOCs, HAPs, Isocyanates, Chromates Performance Disadvantages When Used Individually
Solvent-Free UV Coating Technology Has Demonstrated High Performance Corrosion Protection For Industrial Applications Formulation With Urethane Acrylates Formulation With Chromium-Free Corrosion Inhibitors High Intensity UV Cure For OEM Applications Portable UV Lamps For Field Application And Cure Clean, Green, Pollution-Free Corrosion Protection
Epoxy And Polyurethane Corrosion Resistance Coating Layer Total Total Corrosion Description Wet Mils Dry Mils Resistance* Epoxy 22 16 1=Best Epoxy 14 10 2 Polyurethane 10 6 3 Polyurethane 3 2 4=Worst *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Epoxy And Polyurethane Corrosion Resistance Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* Epoxy 22 22 16 1=Best Polyurethane 5 15 10 2 Epoxy 10 Epoxy 14 14 10 3 Polyurethane 10 10 6 4 Polyurethane 3 3 2 5=Worst *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Corrosion Resistance With Zinc-Rich Epoxy Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* Polyurethane 7 13 8 1=Best Zinc Epoxy Primer 6 Epoxy 16 22 15 2 Zinc Epoxy Primer 6 Epoxy 22 22 16 3 Zinc Epoxy Primer 6 6 4 4 Epoxy 14 14 10 5 Polyurethane 10 10 6 6 Polyurethane 3 3 2 7=Worst *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Corrosion Resistance Ranking For UV Coating Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* Epoxy 22 22 16 1=Best UV Coating 2 2 2 2 Polyurethane 5 15 10 3 Epoxy 10 Epoxy 14 14 10 4 Polyurethane 10 10 6 5 Polyurethane 3 3 2 6=Worst *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Corrosion Resistance Rankings For UV Coatings Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* UV Topcoat 2 4 4 1=Best UV Primer 2 Epoxy 22 22 16 2 UV Coating 2 2 2 3 Polyurethane 5 15 10 4 Epoxy 10 Epoxy 14 14 10 5 Polyurethane 10 10 6 6 Polyurethane 3 3 2 7=Worst *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Corrosion Resistance Rankings For UV Coatings Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* UV Topcoat 2 5 4 1=Best Zinc Epoxy Primer 3 Polyurethane 7 13 8 2 Zinc Epoxy Primer 6 UV Topcoat 2 4 4 3 UV Primer 2 Epoxy 16 22 15 4 Zinc Epoxy Primer 6 Epoxy 22 22 16 5 *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Corrosion Resistance Rankings Summary Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* UV Topcoat 2 5 4 1=Best Zinc Epoxy Primer 3 Polyurethane 7 13 8 2 Zinc Epoxy Primer 6 UV Topcoat 2 4 4 3 UV Primer 2 Epoxy 16 22 15 4 Zinc Epoxy Primer 6 Epoxy 22 22 16 5 *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
Corrosion Resistance Rankings Summary Coating Layer Layer Total Total Corrosion Description Wet Mils Wet Mils Dry Mils Resistance* UV Coating 2 2 2 6 Zinc Epoxy Primer 6 6 4 7 Polyurethane 5 15 10 8 Epoxy 10 Epoxy 14 14 10 9 Polyurethane 10 10 6 10 Polyurethane 3 3 2 11=Worst *Corrosion resistance ranking based on ASTM D 1654 ratings of scribed steel panels after 672 hours ASTM B 117 salt fog testing
UV Coating Technology Is Suitable For High Performance Industrial Applications Requiring Corrosion Protection Improved Protection Of Steel Compared To Standard Coatings Dramatically Faster Cure With Lower Material Usage Can Be Multifunctional Coating Or Primer/Topcoat System Elimination Of Solvents, VOCs, HAPs, Isocyanates, Chromates Reduced Pollution And Improved Health Considerations Safer And More Efficient Alternative For Corrosion Protection
UV Coating Technology Is Suitable For Corrosion Protection Of Large Structures Just As Any Surface Can Be Painted By A Few Individuals Spraying Or Rolling, A UV Coating Can Be Applied And Cured By Painting And Then Following With A UV Lamp Cure Is Achieved With A Motion That Can Be Described As "Painting" The Surface With A Handheld UV Lamp Movement Of The UV Lamp Is Similar To That Of A Roller Or Spray Gun - At The Same Speed As Paint Application
UV Coating Technology Is Suitable For Corrosion Protection Of Large Structures
UV Technology Is Suitable For Cold Temperatures UV Cure Is Tolerant Of Adverse Conditions (34 F) Maintains Fast Cure In Seconds
UV Technology Is Suitable For A Wider Range Of Application Conditions Than Standard Coatings When Compared To Conventional Paints, UV Cure Is Relatively Independent Of Temperature And Humidity UV Coatings Cured Completely In Seconds With Good Performance In A Field Application At 34 F - No Standard Paint Would Have Cured Under Those Conditions Good Cure Performance Has Also Been Demonstrated Under Typical Ambient Summertime Conditions
UV Technology Is Suitable For Aerospace Applications Requiring Corrosion Resistance Multifunctional UV Coating Can Replace Both The Strontium Chromate Epoxy Primer Layer And The Polyurethane Topcoat Layer Of Current Systems Solvent-Free UV Technology With A Chromate-Free Corrosion Inhibitor Eliminates All Toxic Components Immediate Cure Increases Efficiency And Dramatically Reduces Dry-To-Fly Time For Painting Operations
Chromate-Free Multifunctional UV Coatings Provide ASTM B-117 Corrosion Resistance 0 Hrs 500 Hrs 1000 Hrs 1500 Hrs 2000 Hrs 2500 Hrs 3000 Hrs Coated 2024-T3 Aerospace Aluminum Alloy Panels After ASTM B-117 Salt Fog Testing
Chromate-Free Corrosion Resistance Is Maintained With Different Pigments 0 Hrs 500 Hrs 1000 Hrs 1500 Hrs 2000 Hrs 2500 Hrs 3000 Hrs UV Coated 2024-T3 Aluminum Alloy Panels After ASTM B-117 Salt Fog Testing
Chromate-Free Corrosion Resistance Is Maintained With Different Oligomers 0 Hrs 500 Hrs 1000 Hrs 1500 Hrs 2000 Hrs 2500 Hrs 3000 Hrs UV Coated 2024-T3 Aluminum Alloy Panels After ASTM B-117 Salt Fog Testing
Chromate-Free Corrosion Resistance Is Maintained With Lower Inhibitor Level 0 Hrs 500 Hrs 1000 Hrs 1500 Hrs 2000 Hrs 2500 Hrs 3000 Hrs UV Coated 2024-T3 Aluminum Alloy Panels After ASTM B-117 Salt Fog Testing
Chromate-Free Corrosion Resistance Is Maintained With Different Surface Treatment 0 Hrs 500 Hrs 1000 Hrs 1500 Hrs 2000 Hrs 2500 Hrs 3000 Hrs UV Coated Anodized 2024-T3 Panels After ASTM B-117 Salt Fog Testing
Multifunctional UV Coating Corrosion Resistance Compared To Unprotected Al 2024-T3 Surface UV Coated: Unprotected: 3000 Hrs 24 Hrs 2024-T3 Panels After ASTM B-117 Salt Fog Testing
UV Technology Is Suitable For Aerospace Applications Requiring: Multifunctional Coating - Replaces Primer/Topcoat Fast Cure - Seconds To Minutes Long Pot Life - Unlimited Low VOCs - Solvent-Free, Zero VOC Low Gloss - 20 = 0.4, 60 = 3.0, 85 = 7.0 Flexibility - 10%-20% Elongation Corrosion Resistance - 3000 Hrs ASTM B-117 Solvent Resistance - > 200 MEK Double Rubs Skydrol Resistance - Pass
UV Coating Technology Is Also Suitable For High Performance Applications That Do Not Require Corrosion Resistance Automobile Headlamps After Refurbishing Before Refurbishing
UV Coating Technology Is Suitable For High Performance Applications That Require Excellent Weatherability Clear UV Coating E Values After QUV Accelerated Weathering 1000 Hrs 2000 Hrs 3000 Hrs 4000 Hrs 5000 Hrs 6000 Hrs E = 0.35 0.23 0.25 0.60 0.35 0.47
UV Coating Technology Is Suitable For High Performance Applications That Require Excellent Weatherability Clear UV Coating E Values After QUV Accelerated Weathering E Hours
UV Coating Technology Is Also Suitable For High Performance Applications That Do Not Require Corrosion Resistance Fast Cure Flooring Applications
UV Coating Technology Is Also Suitable For High Performance Applications That Do Not Require Corrosion Resistance Fast Cure Flooring Applications
Summary UV Technology Is Suitable For Applications Requiring Corrosion Resistance And Other High Performance Properties Improved Performance Compared To Current Systems Dramatically Faster Cure With Lower Material Usage Excellent Cure At Temperatures Too Low For Standard Paints
Summary UV Technology Is Suitable For Applications Requiring Corrosion Resistance And Other High Performance Properties Reduced Pollution And Improved Health Considerations Safer And More Efficient Alternative For Corrosion Protection Markets Include Major Infrastructure Of The United States
Summary UV Technology Is Suitable For Applications Requiring Corrosion Resistance And Other High Performance Properties From Weatherability To Corrosion Resistance From The Ground To The Sky