hand finish on copper kitchen hood

[752117]

I have been hired to fabricate an exhaust hood for an island kitchen cooktop.
They want a copper standing seam "radiused" four sided hood.
The layout and fab is not a problem, but the final buffing / finishing is where I need your advice.
They prefer a brushed / grained look similiar to # 4 stainless steel.
I have done many #4 stainless jobs with success but this copper has me asking for help, because the sheet come "grainless" to start with.

Thanks for the help.

[device]

Originally Posted by 752117

I have been hired to fabricate an exhaust hood for an island kitchen cooktop.
They want a copper standing seam "radiused" four sided hood.
The layout and fab is not a problem, but the final buffing / finishing is where I need your advice.
They prefer a brushed / grained look similiar to # 4 stainless steel.
I have done many #4 stainless jobs with success but this copper has me asking for help, because the sheet come "grainless" to start with.

Thanks for the help.

copper grains and scratchs so easy..
i usualy(rarely do copper where i am at) hand grain it with a scotchbrite pad(coarse)
the 6x9" ones..
after you cut you flat patterns before you turn up the seams. hand grain them on the flat..
make sure like painting that you continue right off the material,kinda like spray painting .as to not creat a turn or pattern change neear the edge..
continue right off as if the material was like 6" longer or wider..
hope this helps a bit..
also for grain it is best to go just one way..if you reverse back and forth you arm tends to create an arch when you are not paying attention..

[device]

on a side note i have seen a line sander used..like a air body sander..back and forth action non circular and not random ordit..do not breathe the dust!!