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Super Member
Re: Polishing Powder Coated Wheels
Can you explain "steel shot" please.
"Chrome wheeled, fuel injected and steppin' out over the line"
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Re: Polishing Powder Coated Wheels
Originally Posted by 57BORNTORUN
Can you explain "steel shot" please.
Yeah, that's basically BB's. It's called "shot blasting" and is usually used on metal to impart compressive stress and improve the fatigue characteristics, or on concrete floors. Not sure why they did it on Crispy's wheels.
What is shot blasting? - Wheelabrator
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Super Member
Re: Polishing Powder Coated Wheels
@OP:
On 09-22-2016,
You posted the following:
Originally Posted by Crispy
I have a freshly coated set I will try
a test spot to remove orange peel.
Just being careful as they cost alot to do.
If I had this much orange peel on
a body panel I would have taken
it back to the painter.
•I wouldn't have accepted the wheels,
in that condition, to begin with.
(Yes, I know, that's besides the
point right now.)
•Nonetheless...
IMHO it boils down to this:
-since you now know that Powder
Coatings (PCs) are not like the usual
auto-paints when it comes to sanding,
compounding, and polishing...
-only you can decide if it's too late
now to take 'em back for a "do-over":
that's the "true fix".
Bob
"Be wary of the man who urges an action in which he himself incurs no risk."
~Joaquin de Setanti
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Re: Polishing Powder Coated Wheels
A #### note......especially with wheels. Cast or forged, IMO the rules till apply.
If you deem your PC is not competent from the original job, I would not be going back for a redo.
There is a fine line between the heat required to cure the powdercoat and how much heat the metal can take before it WEAKENS.
Not sure why the word is banned, but #### I wrote the word w1k1
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Super Member
Re: Polishing Powder Coated Wheels
Originally Posted by Setec Astronomy
Yeah, that's basically BB's. It's called "shot blasting" and is usually used on metal to impart compressive stress and improve the fatigue characteristics, or on concrete floors. Not sure why they did it on Crispy's wheels.
What is shot blasting? - Wheelabrator
Correct term would be shot peening in the automotive world or at least that`s what us gear heads call it.Used primarily in engine, rear end, ect. parts that were previously forged.The blasting of non-forged steel rims is mostly finished with between 80-120 grit abrasive.Can`t envision the need or use of shot to blast when the coated surface should be smooth and clean as possible.
"Chrome wheeled, fuel injected and steppin' out over the line"
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Super Member
Re: Polishing Powder Coated Wheels
Originally Posted by chefwong
A #### note......especially with wheels. Cast or forged, IMO the rules till apply.
If you deem your PC is not competent from the original job, I would not be going back for a redo.
There is a fine line between the heat required to cure the powdercoat and how much heat the metal can take before it WEAKENS.
If ~350-400 degrees for ~45 minutes will
weaken them to the point of a possible
failure due to metal fatigue...then the
wheels probably weren't, originally, worth
a diddly-squat; and, therefore, should not
have been put through any of the stress-
ful powdercoating processes to begin with.
JMO.
Bob
"Be wary of the man who urges an action in which he himself incurs no risk."
~Joaquin de Setanti
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Super Member
Re: Polishing Powder Coated Wheels
Originally Posted by 57BORNTORUN
Correct term would be shot penning
in the automotive world or at least
that`s what us gear heads call it
I was taught to call it "shot peening".
Bob
"Be wary of the man who urges an action in which he himself incurs no risk."
~Joaquin de Setanti
-
Super Member
Re: Polishing Powder Coated Wheels
Originally Posted by chefwong
A #### note......especially with wheels. Cast or forged, IMO the rules till apply.
If you deem your PC is not competent from the original job, I would not be going back for a redo.
There is a fine line between the heat required to cure the powdercoat and how much heat the metal can take before it WEAKENS.
Not sure why the word is banned, but #### I wrote the word w1k1
Most temperatures for powder coating don`t exceed 400 F. Ceramic coating (not paint coating) can and in many cases exceed that temp. and used primarily on extreme heat related parts .(Exhaust, ect) I just ceramic coated a pair of hood hinges in silver primarily for durability ....and they look cool!
"Chrome wheeled, fuel injected and steppin' out over the line"
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Super Member
Re: Polishing Powder Coated Wheels
Originally Posted by FUNX650
I was taught to call it "shot peening".
Bob
That darn spell-check has a mind of it`s own, or is it it`s user.
"Chrome wheeled, fuel injected and steppin' out over the line"
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Re: Polishing Powder Coated Wheels
350 for 30 minutes tops is my preference - at least my PC guys knows that is my preferred maximum, but I don't tell him how hot or how long he does to do this thing...
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