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Ceramic Paint
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PostPosted: Thu Feb 24, 2022 6:21 pm    Post subject: Ceramic Paint Reply with quote
Good for lenses & cameras?

https://www.amazon.com/Flameproof-Ceramic-Coating-SP102-Black/dp/B0071OK4JU


PostPosted: Thu Feb 24, 2022 10:23 pm    Post subject: Reply with quote
Forgive my ignorance, but why would paint for cameras and lenses need to be flameproof?


PostPosted: Thu Feb 24, 2022 11:16 pm    Post subject: Reply with quote
The key word is Ceramic not Flameproof. Hard & durable imho.


PostPosted: Fri Feb 25, 2022 1:10 pm    Post subject: Reply with quote
I could be wrong as I can't see the usage instructions, but I guess the ceramic feature would require it to be baked (sintered/vitrified) at very high temperature after it has been sprayed on. Might work, but you would need to be able to strip the part(s) of all glass & plastic elements first. Also check first if it is suitable for use on aluminium & brass parts, not just steel.

They need to supply a few more product details; I suspect this Amazon listing is for people already familiar with the product & how to use it.


PostPosted: Fri Feb 25, 2022 5:29 pm    Post subject: Reply with quote
https://avalonking.com/blog/the-truth-about-ceramic-coatings/
https://www.goldeagle.com/product/303-graphene-nano-spray-coating/
https://carcarereviews.net/?utm_term=ceramic%20coatings


PostPosted: Mon Feb 28, 2022 12:46 am    Post subject: Reply with quote
I've never heard of this stuff, What would you do with it? Paint the camera? .

Will this stuff survive handling?

I'd be interested in if it works and the longevity of the coating on a camera


PostPosted: Mon Feb 28, 2022 12:28 pm    Post subject: Reply with quote
visualopsins wrote:
https://avalonking.com/blog/the-truth-about-ceramic-coatings/
https://www.goldeagle.com/product/303-graphene-nano-spray-coating/
https://carcarereviews.net/?utm_term=ceramic%20coatings


I've done a bit more digging.

It appears a ceramic does not necessarily need to be fired to classify as a ceramic, but the cured ones like the spray-on coatings here are nowhere near as tough as the fired ones that have been vitrified.

https://mse.umd.edu/about/what-is-mse/ceramics
https://depts.washington.edu/matseed/mse_resources/Webpage/Ceramics/ceramics.htm
https://ceramics.org/about/what-are-engineered-ceramics-and-glass/structure-and-properties-of-ceramics
https://ceramics.org/about/what-are-engineered-ceramics-and-glass


PostPosted: Mon Feb 28, 2022 1:37 pm    Post subject: Reply with quote
I don't see why a coating designed to stick to ceramics, would be better than one designed to work on metals or plastics (as appropriate for the part painted).


PostPosted: Mon Feb 28, 2022 1:52 pm    Post subject: Reply with quote
DConvert wrote:
I don't see why a coating designed to stick to ceramics, would be better than one designed to work on metals or plastics (as appropriate for the part painted).


Oh, I wasn't suggesting that.

The temps required for firing ceramics would melt the aluminium parts of the lens Wink

I used to be under the impression that ceramics were by definition vitrified/sintered by firing. I just clarified that apparently this isn't the case, and that these spray-on coatings may well be justifiably labelled "ceramic" Wink


PostPosted: Mon Feb 28, 2022 5:56 pm    Post subject: Reply with quote
RokkorDoctor wrote:
DConvert wrote:
I don't see why a coating designed to stick to ceramics, would be better than one designed to work on metals or plastics (as appropriate for the part painted).


Oh, I wasn't suggesting that.

The temps required for firing ceramics would melt the aluminium parts of the lens Wink

I used to be under the impression that ceramics were by definition vitrified/sintered by firing. I just clarified that apparently this isn't the case, and that these spray-on coatings may well be justifiably labelled "ceramic" Wink


I think you're impression was perfectly accurate, it ties in with the standard dictionary definition of ceramics..
The more woolly 'definition' quoted by one of your sources ('Ceramics are classified as inorganic and nonmetallic materials that are essential to our daily lifestyle') includes stone, water & air which are NOT by any means ceramics.

These spray paints are probably just designed to be used on ceramics, like the brush on 'tile paint' my wife brought...
VERY different from pottery glazes (inorganic compounds dispersed in water) Which need firing. Most of these are either reduced or oxidised on firing (depending on the type of kiln) Some could produce a wide variety of colours depending on firing conditions...


PostPosted: Mon Feb 28, 2022 9:15 pm    Post subject: Reply with quote
"Ceramic Paint" here is meant to refer to a *coating* applied to painted surfaces to make them hydrophobic and provide some degree of scratch protection -- a marketing definition primarily used by automotive industry -- not to refer to "sintered/vitrified" paints or paint for ceramic objects. Apologies for the confusion.

The following products appear to be suitable for protecting camera and lens surfaces:

Armor Shield IX product https://avalonking.com/shop/ceramic-coating/armor-shield-ix-diy-kit/
303® Graphene Nano Spray Coating™ https://www.goldeagle.com/product/303-graphene-nano-spray-coating/

Anybody tried using such product for photographic equipment protection?

(Of course with photographic equipment there is more to consider for complete hydrophobic protection.)


PostPosted: Mon Feb 28, 2022 11:46 pm    Post subject: Reply with quote
visualopsins wrote:
"Ceramic Paint" here is meant to refer to a *coating* applied to painted surfaces to make them hydrophobic and provide some degree of scratch protection -- a marketing definition primarily used by automotive industry -- not to refer to "sintered/vitrified" paints or paint for ceramic objects. Apologies for the confusion.

The following products appear to be suitable for protecting camera and lens surfaces:

Armor Shield IX product https://avalonking.com/shop/ceramic-coating/armor-shield-ix-diy-kit/
303® Graphene Nano Spray Coating™ https://www.goldeagle.com/product/303-graphene-nano-spray-coating/

Anybody tried using such product for photographic equipment protection?

(Of course with photographic equipment there is more to consider for complete hydrophobic protection.)

Ceramic paint like those last two is not something I've ever come across.
But I have come across ultra high temperature spray paint for exhaust manifolds which seems to be what your first link related too. The Amazon reviews seem to suggest the manifold need to be hot for proper curing & IIRC is often applied to bare metal. So I think it's very different to the 'armour shield' type product.


PostPosted: Tue Mar 01, 2022 10:03 am    Post subject: Reply with quote
I've never been too much of a fan of painted finishes for cameras/lenses.

My preferred finishes are either black anodised aluminium, or matt-chromium-plated brass (or even better, an aesthetically pleasing combination of the two Smile ).

Those two are very durable and scratch/abrasion-proof finishes. The few drawbacks I can live with:

- expensive
- susceptible to salt damage if the equipment isn't cleaned after sea-side use, a bit more so than enamel paint.
- proprietary anodising recipes means that some brands' anodised finishes look/are much better than others. This is another area where Leitz/Leica shared their knowledge with Minolta, and both brands have very good anodised finishes.
- good black dyes for anodised aluminium were often also a proprietary company secret; some early ones can fade a bit and get a hint of a red or blue sheen to them after many decades. Later ones are holding up just fine even after 50 years.
- once the finish does wear off under very heavy use/abuse, it is difficult to make them look like new again without re-anodising or stripping & re-plating.


PostPosted: Tue Mar 01, 2022 4:34 pm    Post subject: Reply with quote
Couldn't/wouldn't Ceramic or Graphine Coating mitigate those drawbacks?


PostPosted: Tue Mar 01, 2022 8:55 pm    Post subject: Reply with quote
visualopsins wrote:
Couldn't/wouldn't Ceramic or Graphine Coating mitigate those drawbacks?


Some of them possibly. I haven't seen one of those coatings in real-life, so can't tell if I would like the look of it. Nor have I been able to test its resistance to wear & tear in person.

But really, why mess with something that worked so well? My anodised lenses and cameras are 50+ years old and the vast majority look like they came out of the factory yesterday, despite intensive use. The same goes for the matte-chromium plated brass parts. Using these ceramic coatings on a camera/lens seems intended to solve a problem I just don't have. Never had to do anything to my lenses other than the occasional light wipe-down with a damp cloth (not the glass of course!).

On the other hand, these ceramic coatings, when applied to a car, apparently you are advised to replenish them every 3 to 4 months to restore both finish & protection. Something not so durable about them as advertised, I suspect. I smell advertising hype + profit margins here.

https://www.drbeasleys.com/blog/2018/03/30/why-you-need-to-maintain-ceramic-coatings
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