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  #1  
Old November 9th, 2014, 07:57 PM
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Charles Galpin
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source for super durable polyester powder

I will be powder coating the axles and suspension and other parts not getting galvanized on my 109" project and have been researching the powder options. Afaikt there is a "super durable" polyester that is better than the typical polyester TGIC I see for sale.

Does anyone know of a source for this super durable polyester powder in low quantities like 1-2 pounds? The big boys sell them in something like 45 pound increments.

Or any recommendations in general for the most durable UV stable powder for this task (that I can buy in small quantities)?

tia
charles
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  #2  
Old November 9th, 2014, 07:59 PM
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are you powder coating yourself?

If so, maybe going to a powder coating company and asking to buy some?
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  #3  
Old November 9th, 2014, 08:01 PM
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Have you thought about using PPG Duranar Powder?

PPG PITTSBURGH PAINTSŪ
4080 Walney Rd # D Chantilly, VA 20151 US
703-263-9050

https://sweets.construction.com/swts...334/672181.pdf
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  #4  
Old November 9th, 2014, 09:12 PM
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A couple years ago I had my harley in for service @ the dealership in Annapolis. While they were servicing it I was wasting time looking @ more screaming eagle stuff and they had a display set up by a local powder coating shop. Gorgeous finishes and the samples were on a very sturdy table with a hammer on it so you could try to chip it.
Powdercoat technology has come a long way and you get what you pay for.
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  #5  
Old November 9th, 2014, 09:24 PM
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Rovertym really turned me off powder coating.
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  #6  
Old November 9th, 2014, 09:31 PM
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Originally Posted by JSBriggs View Post
I know its stylish, but is it the best for this application? Its likely to get scraped and chipped and it isn't easily touched up. -Jeff
Loving that hair
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  #7  
Old November 9th, 2014, 09:31 PM
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I went to a shop recently and he was talking of three coats. A primer, color, then a clear on top. Not sure of overall durability, but that's a lot of powder. I still think if it's likely to get dinged up, good paint is the best option
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  #8  
Old November 9th, 2014, 09:34 PM
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Quote:
Originally Posted by Jymmiejamz View Post
Rovertym really turned me off powder coating.
yep- theirs was the worst powder coating I have ever seen
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Old November 9th, 2014, 11:50 PM
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Black appliance epoxy paint is better than powdercoat IMHO. And much cheaper. Also, you can galvanize pretty much anything or at least I have seen folks in the UK do it.
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Old November 10th, 2014, 06:11 AM
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Quote:
Originally Posted by JSBriggs View Post
I know its stylish, but is it the best for this application? Its likely to get scraped and chipped and it isn't easily touched up. -Jeff
Sweet vega. I sprayed chassis saver on my axles and arms and they came out very nice. It's not UV stable but they don't see much sunlight anyways. Cheap and easy to touch up as well.
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  #11  
Old November 10th, 2014, 07:27 AM
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i doubt Charles' electric Landy will get too chipped up
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Old November 10th, 2014, 08:37 AM
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I don't like powdercoating for this application. When it chips, and it will,the delamination process starts. You can't salvage it. The best you can do is to touch it up with paint...if you actually catch it in time. I do like hammerite paint. It is extremely duable and can easily be touched up.
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  #13  
Old November 10th, 2014, 07:49 PM
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Thanks for the input guys.

Yes it's for the mall crawler and I think road salt is a bigger fear than impact. And yes I will be doing this myself. But like paint, I am convinced the prep is key and a quality product with proper prep/application should be better than paint. Doing it myself it's pretty affordable too.

I plan to blast to base metal, wash in trisodium phosphate, rinse, bake until dry and any off-gassing occurs, coat (at least a color and clear, or primer and color like this Duranar calls for), then cure.

Ed, the Duranar specs look good thanks - the best salt spray ratings I have seen so far on other powder are 3000 hours and theirs are 4000. I'll give them a call to see if they sell in low volume.

I am wary of galvanizing some of the suspension parts but haven't ruled it out completely. I'd love to see a galvanized axle housing up close. And I am pretty sure I wouldn't galvy swivel ball housings for example.

Even if I galvy some of them first, I am thinking I'd want to powder coat on top, at least all the suspension bits.
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Old November 10th, 2014, 08:00 PM
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Ed, the Duranar specs look good thanks - the best salt spray ratings I have seen so far on other powder are 3000 hours and theirs are 4000. I'll give them a call to see if they sell in low volume.
Sherwin Williams also has a Kynar fluropolymer powder called Sher-Nar but the problem with Sherwin Williams is that they only sell in 5-gallon minimums.

If you have no luck with getting Kynar/PVDF from PPG in small quantities, try "powder by the pound" which has their own off-label "Super Durable" powder line. I have no idea what their formulation is, but a quick phone call might help. They may also be able to provide PVDF/Kynar in small quantities - if you call, ask for PVDF powder, usually that is the generic name.

https://www.powderbuythepound.com/Super-Durable-Colors/
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  #15  
Old November 10th, 2014, 08:09 PM
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Charles Galpin
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Yeah they are on the list along with eastwood, powder365 and prismatic powders. It's really hard to tell what you are getting though. I guess I could buy a half pound of each and do a comparison test.
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