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Thin gauge metal plaques...printed?

gnubler

Active Member
Bidding on a job for some thin gauge aluminum plaques, see sample pics. There's a laminate film on them with a black imprint. Are these printed? Etched? My sample piece is .020 aluminum, but the customer said they can be even thinner because they're applied to a curved surface. Looks like Gemini offers several varieties of thin gauge plaques but I'm not sure which production method I'm after. These are for outdoor use with exposure to elements. Thanks for any vendor suggestions.

20230301_120013.jpg
 

petepaz

New Member
they can be etched, silk screened or metal photo process.
hard to tell for sure but looking at the photo they look metalphoto process. (when you look at the black it looks like it's absorbed in the metal, you can see the brush pattern )
we do that in house. we can do .003, .005 foil
the laminate is probably just a protective mask. normally nameplates like those don't get a laminate. no reason for it
 

2B

Active Member
It could also be sublimated

When you touch it, can you feel any lip, texture, etc?
 

Gino

Premium Subscriber
I would imagine the laminate is on there so they can change out the capacities and dates without staining the metal.
 

gnubler

Active Member
No texture, the surface is totally smooth. Tried scratching the black with something sharp and it took a lot of effort to leave a mark. Agree that the laminate is just a protective film, it peeled off easily. Customer probably removes it when they apply the plaques. I'll check out JDS, thanks. Didn't know they did wholesale production!
 

Notarealsignguy

Arial - it's almost helvetica
we use to screen print these data plates in groups on a single sheet with UV ink and they got sent back to the manufacturer for trimming, hemming or whatever finishing they did.
 

FrankW

New Member
This will often be printed on specially prepared, anodized aluminium. I do not know the english name, in germany the print process is named „Eloxal-Unterdruck“.

With anodizing, the invisible oxid layer will grow thicker. then color is printed on that oxid layer (screen printing or digitally, we sell a special dye solvent ink for it, printed for example with modified Mimakis), after the printing the Aluminium will be cooked in a hot water bath with a special salt for around one hour: after that the pores of the oxid layer are compacted, and the print is very scratch resistant. The only disadvantage of our ink is that they do not last long under sunlight exposure.
 

gnubler

Active Member
Don't see anything like this on the JDS site. Firesprint doesn't print on metal.

Any other vendor suggestions?
 

weyandsign

New Member
Never used them, so can't vouch for them, but they look legit to me.
 

Notarealsignguy

Arial - it's almost helvetica
This will often be printed on specially prepared, anodized aluminium. I do not know the english name, in germany the print process is named „Eloxal-Unterdruck“.

With anodizing, the invisible oxid layer will grow thicker. then color is printed on that oxid layer (screen printing or digitally, we sell a special dye solvent ink for it, printed for example with modified Mimakis), after the printing the Aluminium will be cooked in a hot water bath with a special salt for around one hour: after that the pores of the oxid layer are compacted, and the print is very scratch resistant. The only disadvantage of our ink is that they do not last long under sunlight exposure.
I always wondered how they made these plates last as long as they do.
 

CanuckSigns

Active Member
We buy these from identifab in Canada, they do a great job. For low quantities you could laser engrave them on black anodized aluminum sheet.
 

FrankW

New Member
I always wondered how they made these plates last as long as they do.
Our english documents name it "anodic printing".

We sell Mimaki solvent printers converted to flatbed and little chinese solvent flatbeds to print on that aluminium. The aluminium can be bought finally anodized and ready for printing.
 

FrankW

New Member

I do alu cooking on a regular basis :). Above not the company I work for, but a supplier.
 
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