October 19, 2017, 11 am CDT
Register at https://www.serdp-estcp.org/Tools-and-Training/Webinar-Series/10-19-2017
“Laser-Interference Surface Preparation for Enhanced Coating Adhesion and Adhesive Joining of Multi-Materials” by Dr. Adrian Sabau
This project supports SERDP’s efforts to reduce Department of Defense’s use of chemical conversion coatings for corrosion protection, which usually employ highly toxic chromate solutions, often hexavalent chrome type-I by developing sustainable, cost-effective technologies. Developing and transitioning new non-chemical processes for surface preparation are sought to drastically reduce the environmental impact, risks and costs in the manufacture and maintenance of DoD weapons systems. The objective of this project is to understand and evaluate the feasibility of using a one-step process at ambient conditions based on laser-interference structuring techniques to replace the chemical conversion coating steps prior to the application of coating systems or adhesive bonding for Al and Ti aircraft components. The presentation will first describe preliminary results for the surface preparation of Al2024-T3 for coating/adhesive bonding using laser-interference processing. The laser-interference power profile, which was used to structure the surfaces, was created by splitting the beam and guiding those beams to the sample surfaces. The results for the single-lap shear tests of an aluminum alloy and carbon fiber polymer composite specimens indicate an increased joint performance over baseline joints. Joints made with laser-structured surfaces were found to absorb approximately 150% more energy than the baseline joints.
“Laser Technology in Aerospace Maintenance” by Mr. Tom Naguy
The U.S. Air Force, with significant support from the Strategic Environmental Research and Development Office (SERDP) and the Environmental Security Technology Certification Program (ESTCP), has been investigating and implementing the use of laser technology in support of maintenance operations for many years, specifically in the areas of depainting and surface preparation of materials. Cost and environmental and occupational health savings in the use of laser technology over chemical or physical methods have been well documented. Laser depaint technology of late has focused on fiber delivered lasers but CO2 laser technology has advances that should not be overlooked and efforts on this technology are underway.
Implementation of Hand Held laser technology is underway across USAF bases in the states as well as overseas. Large off-aircraft components such as aircraft radomes have been successfully laser de-painted for many years and we are looking to expand this capability to other depots. Full aircraft depaint for the F-16 is in the final stages of full production implementation. SERDP and ESTCP are key partners in expanding the use of lasers and investigating new lasers to improve corrosion, fatigue and adhesion performance.
June 6, 2017, 10am CDT
Register at https://www.chemicalfootprint.org/news/event/the-power-of-chemical-footprinting
Explore the value of calculating the chemical footprint for your company by hearing how one company took this on for the first time, from the Pure Strategies’ report, The Power of Chemical Footprinting.
Radio Flyer identified this is an improvement opportunity after taking the Chemical Footprint Project survey last year and the idea of measuring chemicals of concern resonated with the company’s approach and provided a common and easily understood metric to track progress in chemicals management.
Radio Flyer will share their experience and, along with their research partner, Pure Strategies, will provide tips and insight on how to get the most value and progress from this effort and the Chemical Footprint Project, to drive toward safer materials.
See also the Pure Strategies report on Radio Flyer’s transition to greater chemical transparency and safer products and supply chains. Free registration is required for download.
A new best practices guide for paint reuse
was released today to help New York state officials address the multi-million-dollar environmental challenge of managing waste paint safely and cost-effectively. Although targeted at New York State, the information in the guide is readily transferable to other states.
State residents are beset annually with as much as 3 million gallons of leftover paint and need a place to turn for environmentally sound ways to get rid of it. Most leftover paint generated each year in New York ends up stored in homeowners’ garages, flushed down drains, thrown in the trash, or becomes a financial burden to local governments when managed as part of household hazardous waste programs.
The new guide, produced by the Product Stewardship Institute
(PSI) for the New York Product Stewardship Council
(NYPSC), provides information on how governments can establish more efficient and convenient local paint reuse programs. These efforts help prevent leftover paint from being improperly disposed of and reduce recycling costs usually borne by local governments and taxpayers — estimated to be as high as $24 million annually.
Today, the U.S. EPA released the final risk assessment for N-Methylpyrrolidone (NMP), a chemical commonly used to remove paint and other coatings. The assessment identified risks to pregnant women and women of childbearing age, who have high exposure to NMP through paint or other coating removal.
“By completing this assessment, we have taken an important step in protecting pregnant women and women of childbearing age who are using NMP to remove paint,” said Jim Jones, Assistant Administrator for EPA’s Office of Chemical Safety and Pollution Prevention. “It is a reminder that as we evaluate these risks, it is very clear that our nation’s chemical laws are in much need of reform. Completing this assessment will now trigger a process to address these unacceptable risks.”
Acute and chronic risks identified for women of childbearing age who use NMP for less than four hours per day may be reduced by use of specific types of chemical-resistant gloves. However, gloves and respirators do not adequately reduce risks to women of childbearing age who use NMP for more than four hours per day on a single day or repeatedly over a succession of days.
The NMP final risk assessment was developed as part of the Agency’s Toxic Substances Control Act (TSCA) Work Plan, which identified chemicals for review and assessment of potential risks to people’s health and the environment.
NMP is a common alternative to methylene chloride, also known as Dichloromethane (DCM), a chemical-based paint and coating remover. EPA has also identified risks associated with methylene chloride during the removal of paint and other coatings. For both NMP and methylene chloride, EPA is considering a range of voluntary and regulatory actions to reduce risks, and recommends finding safer paint/coating removal chemicals, or taking precautions that can reduce exposures, such as using the product outside, in a well-ventilated area, and wearing proper gloves and respiratory protection.
Additional information on the NMP final risk assessment and other work plan chemicals can be found at: http://www.epa.gov/oppt/existingchemicals/pubs/riskassess.html
This webinar series consists of short presentations on both large and small changes you can make to improve your painting processes – presented by painting industry practitioners and suppliers with first-hand experience to share. This is a chance to ask questions about how the changes worked, what was required, and how it might apply to your facility. Voluntary changes now that reduce VOC emissions could help Minnesota avoid ground level ozone regulations that are on the horizon.
Register for all three webinars at http://mntap.umn.edu/Webinar/index.html.
Session 1: January 21, 2015, 1:00 – 1:45 p.m.
Transfer Efficiency – Equipment and procedures to put more of your paint on the product
- Superior Industries: Toby Weigman will discuss savings from implementation of plural component mixing and electrostatic spray equipment
- Donaldson Inc.: Mark Walsworth will discuss the Impact of electrostatic spray equipment and high solids paint at their California plant
- Graco: Michelle Striggow will discuss the range of transfer efficiency options including air spray improvements, electrostatics, and plural component mixing
Session 2: February 4, 2015, 1:00 – 1:45 p.m.
Paint Formulation Modifications – Improvements in paints that are better for the environment
- Nordicware: Bette Danielson will discuss paint solvent selection to reduce TRI reporting
- Graco: Eric Lilyblad will discuss paint reformulation to reduce HAPs and TRI reporting
- Supplier TBD: Speaker will discuss the range of reformulation options and how to work with your paint supplier to modify or reformulate
Session 3: February 18, 2015, 1:00 – 1:45 p.m.
Powder Coating Considerations – Will it work for you; Can you make the system more efficient?
- Lou Rich: Speaker will discuss why their company implemented powder coating and the benefits of the system
- Valley Craft: Tom Balow will discuss why they are expanding their powder coating capacity
- Powder Coating Institute: Nick Liberto will provide an introduction to powder and how to make powder coating systems efficient.
Read the full story at Paint Square.
Methylene chloride, widely used in paint stripping products, poses a health threat to hundreds of thousands of workers, consumers and project bystanders, U.S. authorities have determined.
The findings of the final risk assessment by the U.S. Environmental Protection Agency could move the agency a step closer to regulating the chemical, also known as Dichloromethane (DCM).
Read the full story from North Dakota State University.
A chromium-free paint developed through research at North Dakota State University, Fargo, and licensed to Elinor Specialty Coatings, Inc., is a 2014 TechConnect National Innovation Awardee. Elinor licensed the technology through the NDSU Research Foundation, and developed Aluma45 MgRP™, a chromium-free magnesium-rich primer for use on aluminum-alloys and composites in ship, automotive and construction materials manufacturing. Aluma45™ can be used directly on bare metal, eliminating chromium-based pre-treatments, which reduces weight, manufacturing time and costs, while eliminating toxic chromium coating procedures and disposal.