HOMEFAQsBOOKS JOBS: Help WantedSuggestions you are here: Hotline/Forum => Letter 23620
Benefits of powder coating over e-coating
+++
We are faced with losing 30 million dollars in sales due to competitor quoting finishing the components in lower cost e-coat vs our current powder coating. We manufacture and install commercial vehicle cargo interiors. Our components will be used in everything from Telecommunication to heavy construction and the finish needs to stand up to the equipment being placed on and off our powder coated shelves and components. We feel by powder coating our components vs e-coating it gives a more durable surface and longer finish life. Does anyone have any test or study information where e-coat has been tested against powder coating. We are using a non UV resistant polyester-epoxy powder coating.
J. Michael Cathcart1st tier automotive, point of purchase displays - Atlanta, Georgia
+++
You should contact the PCI and vendors such as Tiger Drylac and Martex to see what literature they can offer, Michael.
But if I had 30 million dollars in sales at risk in these circumstances, I would not hesitate for a heartbeat before retaining an expert powder coating consultant to prepare a report tailored to my exact product line.
|
 Ted Mooney, P.E. RET finishing.com Brick, New Jersey |
+++
What's "e-coating" as mentioned in your mail .... thanks.
Atul Bhide
jobshop / applicator - Mumbai, India
May , 2007
Hello, Atul. E-coating means electrocoating -- sometimes alternately called electropainting, electrophoretic lacquering, and so on. The parts are immersed in an electrified tank with a special cationic or anionic paint which deposits on the parts as a result of electrochemical oxidation or reduction.
An advantage is full coverage (the deposited paint becomes insulative, diverting the electrical current to spots where paint hasn't yet deposited). Another advantage is that the coating is quite thin compared to other organic coatings.
|
 Ted Mooney, P.E. RET finishing.com Brick, New Jersey |
May 6, 2009 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread
advantages of electrocoating over powder coating
praveen kumaremployee - chennai,Tamil nadu, India
August 31, 2010
Hi, Praveen. We appended your inquiry to a thread which may answer it for you. But if you provide additional details about your components and their application, we may be able to provide additional info.
Regards,
|
|
Ted Mooney, P.E. RET finishing.com Brick, New Jersey |
January 24, 2012
Q. Hello all,
E-coat vs powder coat for an outdoor luminaire? Trying to address the finish on a diecast aluminum outdoor luminaire. Current finish is anodize with powder coat over the top. VERY expensive. Any suggestions on a finish that will withstand weathering ? (looking for 10 yr warranty)
Consultant to OEM - Wauwatosa, WI
January 24, 2012
Hi David.
Anodizing diecast aluminum and following it with powder coating sounds like a pretty good but fairly unusual and expensive finish. I suspect that e-coat PLUS powder coat will be less expensive and more robust. Please remember, however, that pretreatment is a major part of finishing, so it's not just an issue of specifying the final finish, but either specifying the prestreatment or finding competent applicators. Good luck.
Regards,
|
|
Ted Mooney, P.E. RET finishing.com Brick, New Jersey |
January 25, 2012
A possible even cheaper process whilst still retaining 10 years protection would be zirconium phosphate followed by architectural polyester powder top coat.
|
Terry Hickling Martex Paints Ltd  Birmingham, United Kingdom |
|
February 15, 2012
Hi all,
We need to protect some tubular heaters that are going to be used in a swimming pool environment (fitted at high level) and have suggested the use of e-coat. The tubular heaters are manufactured from mild steel.
Our client has asked for some data to support the choice of e-coat. Can anyone point me in the right direction?
regards
Gary
- Daventry, UK
February 14, 2012
Hi, Gary. We can tell you that all automobiles around the world are e-coated before painting, so that should be some evidence of its value. PPG may have case studies. But I think you will find that most E-coating is not UV resistant, so it must be followed with something. A polyurethane top coat is common, but I think powder coating would be better.
Again, the primary thing that E-coating offers, that painting and powder coating don't, is 100 percent coverage. Good luck.
Regards,
|
|
Ted Mooney, P.E. RET finishing.com Brick, New Jersey |
February 15, 2012
I am in the beginning stages of restoring an old pick up truck. I'm having the frame repaired and reinforced, being a midwestern truck, from the Salt n' Rust Belt... I want to take whatever steps I can, to prevent the frame from being ruined again. From what I have been reading, it would appear that having the frame cleaned, then e-coated, then powder coated is the way to go? I want the best protection possible - whatever method it might entail. Comments saying E-coating is able to offer 100% coverage, but is thin... tend to concern me. Powder coating is a thicker more durable process correct? But is not able to offer 100% coverage... but the two together - would that be good enough? Opinion, thoughts, suggestions?
Thank you!
- Stevens Point, Wisconsin, USA
February 16, 2012
Hi Tom. Yes, the two coatings are compatible, and electrocoating followed by powder coating is a common and robust system.
Regards,
|
|
Ted Mooney, P.E. RET finishing.com Brick, New Jersey |