It is currently Wed Sep 26, 2018 8:54 am

 

Tips to avoid dark spots-steelfx

Learn and share patina finishing techniques, experiences, and product knowledge here.
Metriccar
Posts: 493
Joined: Fri Apr 26, 2013 9:56 pm

Tips to avoid dark spots-steelfx

Postby Metriccar » Sat Jul 22, 2017 6:47 pm

I notice that when I go over an area again with steel fx, I get dark spots. Any way to avoid this? Obviously some times it's desireable others it's not. I'm guessing I need to improve technique so that I don't have to go back near an area. Kinda hard with larger pieces. [attachment=0]IMG_3785.JPG[/attachment]

You do not have access to download this dxf file.
Become a Contributing Member to gain access to the thousands of files shared by our members. Click Here


Craig Rumble
Posts: 3
Joined: Sun Apr 30, 2017 7:11 pm

Re: Tips to avoid dark spots-steelfx

Postby Craig Rumble » Fri Mar 09, 2018 10:23 pm

Funny I looked at this thread due to the same issue. All I can say, Is now I put the copper on with a gravity feed gun to atomize the hell out of it and cover more ground quickly. Then spray it off fast.

User avatar
steelfx
Elite Contributing Member
Elite Contributing Member
Posts: 750
Joined: Sat Oct 10, 2009 12:09 am
Location: St. George, Utah
Contact:

Re: Tips to avoid dark spots-steelfx

Postby steelfx » Tue Apr 24, 2018 4:35 am

Craig is correct. Dark spots occur only when leaving the COPPER F/X™ on the steel too long. I've also used a gravity feed gun (on large projects), but found that the Pump Pressure Sprayer offered on my website, works just as well. A light mist and a quick rinse w/ water is the trick. Resist the urge to go 'over and over' the same area. It's not necessary and it doesn't help. Also, limit the 'contact' or 'dwell' time to 10s or less before rinsing. Working in the shade will give you a little more working time, also.
thanks!
Bill :)
50 Oz. Pump Pressure Sprayer: https://goo.gl/xhv1BF
Image

motoguy
Elite Contributing Member
Elite Contributing Member
Posts: 1074
Joined: Tue Aug 25, 2015 12:05 pm
Location: Central MO, USA

Re: Tips to avoid dark spots-steelfx

Postby motoguy » Tue Apr 24, 2018 10:09 am

Bill,

I notice your sprayer says to "Rinse After Each Use for Longest Life". I've been using the Solo 1L and 2L pump sprayers. After a certain period of time, the nozzles in these sprayers become brittle and break. I do leave the Copper F/X in the sprayers all the time. Will your sprayer do the same thing if left filled? I assume the acid is reacting with the plastic over time, and making it brittle.
Bulltear 6x12 w/ Proton Z axis & watertable
CommandCNC/Linux w/ Ohmic & HyT options
Hypertherm Powermax 85 w/ machine torch
Solidworks, Coreldraw X7, Inkscape, Sheetcam

User avatar
steelfx
Elite Contributing Member
Elite Contributing Member
Posts: 750
Joined: Sat Oct 10, 2009 12:09 am
Location: St. George, Utah
Contact:

Re: Tips to avoid dark spots-steelfx

Postby steelfx » Tue Apr 24, 2018 12:57 pm

Actually, I never rinse after use unless I've been using muriatic acid in them. I've had COPPER F/X in one of mine for over a year and it still works like brand new.
There is so little acid in the patinas that they won't hurt the seals. The Solo sprayers may have rubber o-rings, whereas the sprayer I sell has Viton seals that are unaffected by the patinas. I have ruined a couple of my sprayers that I left filled with muriatic acid, though.
Bill
Image


Return to “Patina Finishes”

Who is online

Users browsing this forum: No registered users and 3 guests

Easyscriber engrave attachment for Hypertherm torch's