Clear coat on brass

[arvindrlaxman]

Hello people,

We have a huge order for printing on Brass with clear. When we use clear there are few dots seen in the print..When contacting fuji they told us that it is unavoidable..Is there any other way we can clear coat the brass..Running out of options..

 

[Gino]

Perhaps you could explain the project or what you are trying to accomplish. As is, this makes no sense....... anyway, not to me.

 

[CanuckSigns]

I know when I order flatbed printed brass from Gemini, they spray laquer coat it, it's not done on the printer

 

[rjssigns]

Need more details. If it is engraved brass you're trying to protect send it out for clear powder coat.

 

[arvindrlaxman]

Guys,

We are printing on brass 500 numbers totally.. When we print clear after printing the subject...There are a lot of dots appearing on the clear coat. Our customer is rejecting it because of the dots. We tried polyurethane 2 pack coat..That also doesn't seem to work.. I am running out of options for clear coat aafter printing the first main subject on Brass...running out of options literally..

 

[visual800]

Man I have read thru this and still have no idea wth you are talking about. You are printing ON BRASS? can you do a pic?

 

[letterman7]

Sounds to me that you have overspray where you're printing, but light enough you don't see it until the top coat hits and lights the inks back up. You're topcoat, no matter what you use, is going to spread the ink a certain amount. Either that, or your clear is contaminated. Other than making sure your plate is spotless as well as the printheads and lines, not much you can do other than investigate another avenue like a chemical etch.

 

[Craig Sjoquist]

Thinks i would print a sample on brass big enough to try different clears, then spray or roll the clears & see which one sells.

 

[Gene@mpls]

Maybe fisheyes in the clear?

 

[Ditchmiester]

What are you using to clean the brass before you spray the clear coat on? Brass is a finicky product to clear coat.

 

[custom sign center]

Contact these people,
They have protective clear coats for all kinds of metals as well as solutions to restore finishes.

http://www.everbritecoatings.com/#gsc.tab=0

Hope it helps

 

[davecich]

Sir,
The issue you are having is due to 1000s of dots growing together trapping air bubbles. There is no fix. Sorry.