So you are hammering him for not having data when you have no data to support your side?

 

My "side" is don't deride something without proof or data. What data do I need for that position exactly?

 

I don’t have a dog in the fight but it’s pretty silly to discount the opinion of the person that Brembo themselves deferred to. Because he sells brake parts his opinion is less valid? Who should we ask? The baker?

 

Temperature and strength data would be appropriate since you are dismissing the claims made in manimal's link.

 

How do we know that Brembo "deferred" to them? I want to know what hard data this opinion is based on. As I see it, I haven't had any problems with re-built, powder coated calipers and I can't find any evidence of anyone else having issues either. It appears there is zero data to support for or against powder coating brake calipers. The next best thing we have is personal experiences. I along with others in this thread can provide those.

 

Are you serious or just trolling at this point?

You are making a straw man argument. I never claimed that powder coating calipers does or does not harm the strength or heat dissipation properties they possess. The claims made in manimal's link don't have temperature and strength data. Why would I need that kind of data to disprove something that hasn't been proven in the first place when I'm not even trying to "disprove" it. I'm simply saying there is no hard data to back up those claims. Hell, it does't even appear that there is anecdotal evidence to back up those claims.

 

BTW, power stop powder coats their brake calipers.

https://v2.powerstop.com/product-type/calipers/

The HORROR

 

Not trolling, just asking for data from both sides.

 

Because the guy submitted the question via Brembo's website and then a partner reached out. by definition Brembo deferred the question to the partner who provided an answer along with the reasoning as well.

Many powder coating shops bead blast prior the piece they are working on for better adhesion. This process, while important for proper adhesion, results in the stripping of the anodized coating. You either choose to cut corners on the powder coating aspect or you choose to strip the OEM anodized coating. Those are your options. A third option is to paint the calipers, but even when painting its still important not to bust through the anodized coating while scuffing the surface.

 

This is what I was looking for, thanks.

 

I admit I missed that part about the question originally being asked to Brembo and then was for some reason forwarded on to a Brembo re-seller. Either way there is a lot of conjecture and zero data to back up the claims regardless of who it came from. They also incorrectly stated what is needed to properly powder coat aluminum, which you subsequently did as well.

Your assertion that not stripping the anodized coating before powder coating is “cutting corners” is disingenuous at best and flat out wrong at worst. Like I have stated multiple times in this thread, myself and numerous people on this forum and on 6 speed had OEM calipers re-finished with powder coat WITHOUT bead blasting prior to coating. The simple fact is neither myself nor anyone else that had this work done multiple years ago has subsequently had any issues with the finish or problems with brake function. My finish still looks brand new when I clean them up and they have seen plenty of abuse/heat cycles.

https://www.pfonline.com/articles/po...anodized-parts

Don’t see any mention of beat blasting there...

I’ll take personal experience over opinions with zero data every day of the week. You want to do the opposite, enjoy.

 

You don't need data to know that if you bead blast the caliper the anodized coating is going to be removed. That is not conjecture that is not debatable, its just what will happen. How important is the anodized coating? This link discusses the benefits of the anodized coating. It states that the anodized coating increases hardness and provides corrosion resistance. If you strip the coating, you are removing those benefits.

https://www.pfonline.com/articles/an...brake-calipers

https://www.pfonline.com/articles/po...anodized-parts

Don’t see any mention of beat blasting there...

I’ll take personal experience over opinions with zero data every day of the week. You want to do the opposite, enjoy.[/QUOTE]

That the anodized coating is a good base coat is news to me. I have call in to the leading powder coating shop in the OC (these are the guys that do 90% of the work for the big names based here such as BBI and Foose). I'm interested to get the owner's take on whether or not the base anodized coating needs to come off or not. I'll post what I hear back.

my searching seems to confirm that aircraft remover does not hurt the coating. If my source confirms that the anodized coating is a good base then I would agree that aircraft remover followed by an acetone bath followed by powder coating would tick all the boxes of a compatible coating based on all the concerns put forth by Brembo.

Simmer down sparky. I've provided sources and sound reasoning all along the way. When someone did provide you data, by your own admission you didn't bother to read it. Do whatever the heck you want with your car,nobody here really cares. I'm just curious about either debunking or confirming the thesis of "powder coating calipers is bad" so that if someone finds this thread years from now or if I decide to have my calipers re-done the accurate facts are known. "I did it and I'm still alive" is just useless noise.

That said, I still like the finish of a paint job over powder coating

 

Spoke with Dan @ Primo Powder Coating. He said while you could powder coat over the anodized coating that it would not be nearly as good adhesion as media blasting. So basically yes, powder coating these calipers means either removing the anodized coating which is AGAINST Brembo's recommendation or you cut corners and leave the anodized coating which is against powder coating best practices according to a leading shop with 20+ years in the business that works with large Porsche tuning shops and industry leaders.

Moral of the story? Know which process the vendor you select is going to use so that you understand the benefits / drawbacks.

 

That's a straw man. I never said that removing the anodizing wouldn't negatively affect anything. I've strictly talked about my experience with powder coated calipers in which the anodized coating was not removed. That all said. I'd really like to know how a caliper could develop corrosion if it has powder coat all over it, lol. I can see the hardness possibly being an issue, but again. You can powder coat without bead blasting off the anodized finish so the point is moot.



Interested to hear what they have to say, but again I have powder coated calipers that turned out perfect without removing the anodized coating, so it clearly can be done.

I read the highlighted part of the link with the meat of the information. Saying I "didn't read" it is not true. I missed the first paragraph that talked about a web form submitted to Brembo. Again, not the meat of the information and doesn't change the basic takeaway. Bead blasting bad for Brembo calipers.

Each to his own. My powder coat is plenty glossy and I don't have to worry about chipping it if I accidentally whack it with a wrench or bump it with the wheel barrel while putting wheels on car.

 

Didn't see this post before I posted mine. Good info. I will add the caveat that not all professional powder coaters would agree with the sentiment that not bead/media blasting is "cutting corners". The consensus among those who powder coat anodized parts appears to be "if you clean and prep properly, adhesion is not a problem".