Tim Mcdonough
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- Chemistry Charts the Course in Coatings Marine News, Jul 2014 #52
Sherwin-Williams’ WB Acrolon 100, developed through waterborne technology, delivers aesthetics and protection in one topcoat. It all adds up to extended maintenance and recoat cycles.
Inland river crews have a lot on their plate. When your job is to be a deckhand, you don’t want to spend much time being a painter. There’s never a good time to be a painter. However, keeping vessels free of corrosion and looking good is part of the job. So crews must attend to painting the freeboards, superstructures and decks, usually on the go. Solvent-based urethane topcoats have been the standard choice of port engineers and fleet managers for combating the effects of harsh environmental exposures to tugs, barges and towboats. But it is far from the only choice.
Inland operators can now take advantage of the latest advances in waterborne coatings to achieve both good looks and long-lasting performance. We can now achieve high functionality when it comes to environmental exposures with an ultra-durable, high gloss acrylic polyurethane with performance properties far above those typically associated with premium-quality solvent-based urethanes.
The inherent deficiencies of early waterbornes were long ago overcome, and expectations go well beyond just decorative attributes. In fact, Sherwin-Williams’ WB Acrolon 100 offers performance across the widest spectrum of performance criteria. It provides the gloss retention of a fluoropolymer or urethane with a clear coat, the color retention of a polysiloxane, and abrasion resistance and hardness demonstrably superior to any topcoat on the market today. Comparing this waterborne product to a traditional solvent-based urethane, in accord with various test methods, tells the story.
Test Methods Benchmark Performance
Sherwin-Williams subjected this innovative technology to a number of standard test methods to assess performance in the key areas of gloss and color retention. To evaluate the material’s durability in the face of exceptionally long lifecycle expectations, Q-TRAC testing was employed. This speeds up the weathering process while concentrating natural sunlight using Fresnel lenses to magnify the solar radiation. The concentrator uses photo-receptor cells to maintain alignment with the sun and ten mirrors to reflect the sunlight onto the specimens. In this way, it is possible to simulate 63 years of UV radiation exposure in a single year.
A second form of testing, QUV-A accelerated weathering (per ASTM D4587, Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings), captures only one small bandwidth of radiation, so it does not replicate the sun, but it does focus on the most damaging ultraviolet rays. Here sample racks are placed in a chamber, with the sunlight simulated by fluorescent UV lamps. For evaluating gloss retention, this testing gives good rank order correlation to natural sunlight.
ASTM D1014, Standard Practice for Conducting Exterior Exposure Tests of Paints and Coatings on Metal Substrates, is a third, unaccelerated test method that is particularly useful for evaluating color retention. Here, samples are placed on inclined racks oriented at the sun at an angle ensuring exposure to the full spectrum of solar radiation, from infrared to ultraviolet, over a two-year period. The gold standard venue for this test is Florida where temperatures, UV intensity and humidity, all needed for maximum degradation, are at their peak.Color, Gloss Test Results
Gloss retention – Measured in percentage gloss, or luster, retained after six months, compared to the original sample, Q-TRAC testing resulted in limited loss of luster for the innovative product, with 98.2 percent retention. In the QUV-A testing, it was necessary to log 13,000 hours of exposure before a 50 percent loss of luster was measured.
Color retention – The human eye is believed able to distinguish a color shift only greater than 1 E, depending on hue, saturation and value of the color.
Q-TRAC testing of the acrylic polyurethane showed a shift of only 0.33 E, which is a superior measurement of its ability to withstand premature or excessive lightening of the original color. In the Florida test, a shift of 0.52 E was recorded.
Using standard ASTM test methods for abrasion resistance and pencil hardness, the performance comparisons to traditional results are also instructive. To measure the ability of a coating to withstand or resist wear, ASTM D4060 (Standard Test Method for Abrasion Resistance of Organic Coatings by the Taber Abraser) utilizes a CS-17 wheel with a 1 KG load and runs for 1,000 cycles. Results are reported in mg loss. The breakthrough technology recorded a 25 mg loss; standard aliphatic urethanes typically experience losses from 40-90 mg.
In measuring a coating’s pencil hardness, or the ability to resist scratching, permanent deformation or damage, ASTM D3363 (Standard Test Method for Film Hardness by Pencil Test) determines the grade of the hardest pencil that won’t mar the coating. Pencil grades range from 9H (hardest) to 9B (softest).
WB Acrolon 100 measured at 3H, while most aliphatic urethanes record a pencil hardness of H to HB, the middle part of the range.
The combination of these performance metrics adds up to a waterborne finish coat that stands up to the most aggressive marine environments. The deck is one of the most expensive parts of the vessel when it comes to painting, and taking it out of commission for any length of time makes it difficult to get other work done.
That alone should be reason to consider new technologies that deliver significantly extended maintenance and recoat cycles.
But it goes beyond practicality. When a vessel lives in the port, a good-looking, well maintained exterior reflects well not only on the structure itself but also on the crew and owner in the eyes of a prospective client, buyer, or class surveyor. Advances in coatings chemistry make it feasible for owners to achieve with one product what has only been elusive before.
(As published in the July 2014 edition of Marine News - http://magazines.marinelink.com/Magazines/MaritimeNews)
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- MN100: Sherwin-Williams Protective & Marine Coatings Marine News, Aug 2016 #81
, OH 44115 Telephone: (800) 524-5979 E-mail: [email protected] Website: www.sherwin-williams.com/protective Marine Market Segment Director: Tim McDonough (As published in the August 2016 MN100 edition of Marine News
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- Marine Manufacturers find ... "There’s an APP for that" Marine News, Dec 2013 #48
. Clicking on a product name brings up a detailed product data sheet. “SeaGuard provides our customers with stem-to-stern coating solutions,” says Tim McDonough, Sherwin-Williams regional marine market segment director. “Port Engineers and fleet managers alike will have, at their fingertips, the latest
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March 2024 - Marine Technology Reporter page: 6MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Gallaudet, Kevin Hardy is President PhD, Rear Admiral, U.S. of Global Ocean Design, Navy (ret) is the CEO of creating components and Ocean STL Consulting and subsystems for unmanned host of The American Blue vehicles, following a career
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April 2024 - Marine News page: 48ADVERTISER INDEX Page Company Website Phone# 23 Ahead Sanitation www.aheadsanitationsystems.com (337) 330-4407 29 All American Marine www.AllAmericanMarine.com (360) 647-7602 35 Bristol Harbor Group www.BristolHarborGroup.com (401) 253-4318 7 Caldwell Lifting Solutions www.caldwellinc.com (800)
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February 2024 - Marine News page: 48ADVERTISER INDEX Page Company Website Phone# 27 Ahead Sanitation www.aheadsanitationsystems.com (337) 330-4407 25 All American Marine www.AllAmericanMarine.com (360) 647-7602 7 Caldwell Lifting Solutions www.caldwellinc.com (800) 628-4263 9 CMA Shipping 2024 www.cmashippingevent.com Visit
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February 2024 - Marine News page: 29cost increases. “I don’t necessarily see that as a problem for the wind operation as a whole,” he said. In the U.S., electricity is very localized, said Tim Axels- son, director of offshore wind at Liberty Green Logistics. “Every state controls its own destiny when it comes to elec- trical markets: how
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January 2024 - Marine Technology Reporter page: 6MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Gallaudet, Kevin Hardy is President PhD, Rear Admiral, U.S. of Global Ocean Design, Navy (ret) is the CEO of creating components and Ocean STL Consulting and subsystems for unmanned host of The American Blue vehicles, following a career
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November 2023 - Marine Technology Reporter page: 7MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Gallaudet, Kevin Hardy is President PhD, Rear Admiral, U.S. of Global Ocean Design, Navy (ret) is the CEO of creating components and Ocean STL Consulting and subsystems for unmanned host of The American Blue vehicles, following a career
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December 2023 - Maritime Reporter and Engineering News page: 34G REAT of HIPS S 2023 “Turku is building the real big ships” – Tim Meyer, CEO, Meyer Turku By Eric Haun eyer is not exaggerating. The yard’s lat- Royal Caribbean's Oasis-class Allure of the Seas. With 2,805 est newbuild, Icon of the Seas—the ? rst staterooms, the ship is able to carry 5,610 passengers
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November 2023 - Marine News page: 64.com (314) 965-3339 29 SEATAC Marine www.seatacmarine.com (206) 767-6000 9 Thordon Bearings www.thordonbearings.com Please visit our website 25 Timberland Equipment Limited www.timberlandequipment.com (519) 537-6262 1 United Safety / Fireboy Xintex www.unitedsafetycorporation.com Visit us online 5
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November 2023 - Maritime Reporter and Engineering News page: 32what that is looking like? No, I don’t believe we do yet. This speaks to our urgent need to rapidly expand ocean data collection at scale.” – Dr. Tim Janssen, Co-Founder and CEO, Hull stresses can Sofar Ocean be measured directly from installed sensors. MR #11 (18-33).indd 32 11/2/2023 9:23:22 A
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November 2023 - Maritime Reporter and Engineering News page: 30Version 2 of IACS Recommendation No. 34 of up to 6m before waves broke it free from its mooring. The is based on several sources of wave data, including altimetry forecast was 5.4m. MetOcean’s subsequent analysis suggest- (measurements from satellite), hindcast models (re-analysis of ed that a sea state
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September 2023 - Marine Technology Reporter page: 7MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Kevin Hardy is President Gallaudet, PhD, Rear of Global Ocean Design, Admiral, U.S. Navy (ret) creating components and is the CEO of Ocean subsystems for unmanned STL Consulting and vehicles, following a ca- host of The American reer at
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October 2023 - Marine News page: 48(210) 403-0007 25 SEATAC Marine www.seatacmarine.com (206) 767-6000 27 Society of Accredited Marine Surveyors www.marinesurvey.org (800) 344-9077 7 Timberland Equipment Limited www.timberlandequipment.com (519) 537-6262 The listings above are an editorial service provided for the convenience of our
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June 2023 - Marine News page: 48(954) 495-8700 31 Ribcraft USA LLC. www.ribcraftusa.com (781) 639-9065 5 Thordon Bearings www.thordonbearings.com Please visit our website 15 Timberland Equipment Limited www.timberlandequipment.com (519) 537-6262 1 United Safety / Fireboy Xintex www.unitedsafetycorporation.com Visit
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August 2023 - Marine News page: 48ADVERTISER INDEX Page Company Website Phone# 37 Ahead Sanitation www.aheadsanitationsystems.com (337) 330-4407 21 All American Marine www.AllAmericanMarine.com (360) 647-7602 27 Arcosa Marine www.arcosamarine.com (615) 400-4373 25 Bristol Harbor Group, Inc. www.BristolHarborGroup.com (401)
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August 2023 - Marine News page: 31, which drydocked 15 vessels last year, expects to accommodate even more vessels calling upon the port of Jacksonville in the years ahead, according to Tim Spratto, general manager at Jackson- ville Ship Repair. “We anticipate a sustainable workload from the Navy, Coast Guard and other government customers’
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July 2023 - Marine Technology Reporter page: 8to tour beo th t e ocean. n. . WE CANNOT LET THE OCEANGATE TRAGEDY PUT A PAUSE ON OCEAN EXPLORATION © Dolores Harvey/AdobeStock By Rear Admiral (ret.) Tim Gallaudet, PhD n the wake of the catastrophic implosion of OceanGate’s dant communications with her mothership. Titan submersible during a dive on
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July 2023 - Marine Technology Reporter page: 6MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Kevin Hardy is President Gallaudet, PhD, Rear of Global Ocean Design, Admiral, U.S. Navy (ret) creating components and is the CEO of Ocean subsystems for unmanned STL Consulting and vehicles, following a ca- host of The American reer at
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July 2023 - Marine Technology Reporter page: 2Should Not Stop Exploration Changes may be needed, but innovation and exploration must go on in the wake of the loss of Titan. By Rear Admiral (ret.) Tim Gallaudet, PhD 20 ROV Interview Chris Gibson, CEO, VideoRay 8 VideoRay doubles down on the high-end of the one man- portable ROV market. By Greg Trauthwein
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May 2023 - Marine Technology Reporter page: 6MTR Editorial Advisors Gallaudet Hardy The Honorable Tim Kevin Hardy is President Gallaudet, PhD, Rear of Global Ocean Design, Admiral, U.S. Navy (ret) creating components and is the CEO of Ocean subsystems for unmanned STL Consulting and vehicles, following a ca- host of The American reer at
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May 2023 - Maritime Reporter and Engineering News page: 10Training Tips for Ships Copyright Tim/AdobeStock Tip #47 THE ELUSIVE TRAINING ROI By Murray Goldberg he maritime industry is a safety-critical sector that to quantify the exact ROI of high-quality training. Still, sev- is responsible for the wellbeing of countless of? - eral indicators suggest that the
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April 2023 - Maritime Reporter and Engineering News page: 36YOUR All images courtesy Sofar Ocean COURSE Sofar Ocean is on a quest to extract and put to use data from the world’s waterways. Co-Founder and CEO Tim Janssen discusses how his team’s hyper- focus on data is helping to improve weather routing via Way? nder. By Greg Trauthwein im Janssen and his Sofar
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April 2023 - Maritime Reporter and Engineering News page: 2NO.4 / VOL. 85 / APRIL 2023 Photo on the cover and on this page courtesy Curtin Maritime 16 The Path to Zero: OSVs Power Fuel Transition Departments The fuel switch is on, it’s real and it will be driving vessel design, construction and operations decisions for decades to come. 4 Authors & Contributors By
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April 2023 - Marine News page: 48Society of Accredited Marine Surveyors www.marinesurvey.org (800) 344-9077 1 Thordon Bearings www.thordonbearings.com Please visit our website 15 Timberland Equipment Limited www.timberlandequipment.com (519) 537-6262 7 Volvo Penta Americas www.volvopenta.com (757) 403-8404 175,000 The listings
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March 2023 - Marine Technology Reporter page: 61the ? sh plastic may have on the health of plank- tested in the Great Lakes contained ton organisms that form the founda- microplastics, writes New York Times tion of the oceanic food chain. Phyto- columnist David Wallace-Wells,” as plankton play an important role in the did 73 percent of ? sh surveyed