Looking at powder coating a arms ,spindles, rails, runnin.g boards and front bumper. Are bonded parts ok? Will it actually ruin the heat treated parts? Which parts are heat treated? Thanks
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Looking at powder coating a arms ,spindles, rails, runnin.g boards and front bumper. Are bonded parts ok? Will it actually ruin the heat treated parts? Which parts are heat treated? Thanks
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350 degrees max for 20 min MAX... and you are still walking the thin line.
.. you are taking a risk IMO. .
Oh yeah icr
Your old powdercoated pro is still getting ridden like a stolen mule.
Holding up great.
What mountainhorse and loud handle are saying is they have no personal experience with powder coating any parts on a pro rmk. I'd take their advice accordingly.
Good to hear, the new one is problem free as well, never would've thought that possible if I believed half of what I read here.
Here's a chart to clear up some confusion about annealing temps on this thread. Powder coating is safe, if done properly. If your powder coated matches mountain horses description run. And as always folks, do your own research. Talk to your powder coated. Spend five minutes searching on google. Don't trust the inexperienced experts found here.
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And your uncoated PRO chassis that I bought from you folded in half held up so well you want to encourage people to weaken them further?
My experience goes way beyond the PRO chassis. Metallurgy is Metallurgy, it doesn't matter what the alloys are used to construct. All I said was, If you exceed 300 degrees your ruining the structure of your sled or any thing else made from heat treated aluminum alloys. PERIOD!
If you want to powder the steel parts knock yourself out.
What education and/or experience do you have with materials?
To me you sound like you are scrambling at best to come up with a reason that your parts failed. I can run the analysis on a bar knapkin for you over a warm high life if you need validation. 400F will not do anything to the temper or strength of the material. Why yes I do have a materials and a mechanical engineering degree. Oh and yes I do submit to the FAA all procedures and practices of powder coating sensitive aircraft parts that I do at work. By the way it is an approved process by the FAA, state department and federal offices. It is also listed in the ASTM catolge. Please stop providing individuals with wrong information about powder coating because you had a bad experience.
Thanks in advance
"Good discussion and nice sled you have... you take pride in your work and I respect that."
As for the statement that I have no experience with powder coating the chassis on an RMK... not true.I'd also disregard mountainhorse's advice on the subject as he has no personal experience. I powdercoated my 'glued together' pro chassis and wouldn't hesitate to do it again.
The Acrylic adhesive is DESIGNED to release at typical powdercoat temps... not rocket science for the reasons "against".
icr... Glad yours came out.. but not responsible to claim that there are no concerns in the process.
Would I powder-coat a PRO RMK chassis ... absolutely not... But hey that is my take on it.
On top of that... the aluminum will "over age" and loose structural strength if the temp is even a bit too high... 400 degrees is the "danger zone" for most of the alloys used in the construction of that chassis. Unless you used low temp powders... your chassis is probably weaker from the process.
I do have experience with this... the weakening of aluminum chassis from powdercoating... had an IQ chassis that was powdercoated that failed because of the powdercoating process...
Many are already complaining about wrinkling their new pros from jumping or accidents etc... Why risk it??
The U-Tech paint is a substitute for Imron... super durable and definately affordable... at least as durable as 90% of the consumer available powders out there.
BTW... I dont have any personal experience in jumping off bridges either.
Thats my opinion... there are plenty of others out there too.
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icr is correct.. the bond will be strengthened slightly after heating... but the downside is that it will loose some of the flexibility according to the engineers at Lord.
This may or may not be an issue... if some 'give' is not needed in the joint.. then this will not be an issue.
icr obviously had a good powdercoater... which is what I said in the first post... I would NOT put MOST pow coat shops in the the "good" category... not many have experience with intricate structural assemblies like the PRO tunnel. Most of them do not carefully control bake temps, soak times, pre heat, or total bake times.
As a side note... don't coat (paint or powder) the heat exchangers inside the tunnel... You will absolutely loose cooling capacity if you do... I HAVE "been there, done that" .. The PRO already has a small cooling capacity in the tunnel.
Here is a quote from a post I made in the other thread in the link above
http://www.snowestonline.com/forum/showthread.php?t=236334
Mountainhorse:
ONLY the best powdercoaters with good holding fixtures and low temp powders with shorter bake times should even be considered...
More than the powder itself... having a powdercoater that you absolutely trust not to over temp or over bake (time) your aluminum parts is key.350 for 15 minutes, only thing that bent was the thin strip on the tunnel between the coolers.
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My main concern is not simply with the adhesive... but the structural integrity of the chassis and the alloys it is made from.
Those alloys are identical in the PRO and IQ chassis.
Just talk to Mike "aksnowrider" and he can show you just where the chassis can have issues when pushed beyond normal use.
icr, Your pow coat shop is rare... you should feel lucky.
Have a look at that original post...
http://www.snowestonline.com/forum/showthread.php?t=236334
I didn't say it wasn't possible... I said to be careful and outlined, 14 months ago, the concerns that you addressed in using low temp powders and very short bake cycle times.
I stick to my recommendation against... I wouldn't trust a shop to to do the work the right way. Too many variables involved for my liking.
Like I said, your shop is rare... and that in itself is very cool!!
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icr, I think we agree more than disagree.
Looks like you added some supplemental plates to the side of your tunnel?
With that freeride seat an the tunnel mods... I assume you do some hucking... more than my old body can handle.
Good discussion and nice sled you have... you take pride in your work and I respect that.
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Title:
Unless you a very confident in the QC of your pow-coater of choice... think twice.
icr.... the two big things that you have going for you (strength wise) with your powdercoated tunnel assembly are:
1) You braced the chassis considerably in many ways.
2) You seem to have a good powdercoat shop that only used a 15 minute total bake cycle, no "burn off" cycle and max temp of 350 degrees f.
But to be fair... unless I'm mistaken, you have not powder-coated and used a stock chassis assembly (bulkhead/tunnel) that was not significantly reinforced??
For the average joe out there... be very careful when powdercoating an engineered aluminum structural assembly... IMO, there is a higher likelyhood of most people having a bad result rather than a good one.
...Which is why I recommend the urethane paint over the powder coat... It will be tougher than low temp powder as well. The U-Tech is a replacement for Imron and is very affordable.
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Covered in another thread. http://www.snowestonline.com/forum/showthread.php?t=236334
If you are going to do it... take it to a body shop and use a high quality urethane paint like that used on fleet/commercial trucks... no clearcoat needed.
U-Tech 3.8 HSP paint. Base/Clear are a lot of effort that, IMO, are not needed on a sled... This stuff is tough as nails and is reparable if you scratch it deeply. On gloss jobs...you can sand and polish out scratches.
IMO... PERFECT paint for sleds... slightly flexible and durable.
I've used it on other equipment and my tool box... those take more abuse than my sled.
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http://cdautopaint.com/index.php?option=com_content&view=article&id=61&Itemid=96
http://www.hotrodders.com/forum/u-tech-paint-192773.html