Patina

Whitesmithing |

Hi,

I have bought the green patina from Jax chemicals and am not having very good results. In every way that I apply it, it keeps flaking off...very badly. I have tried heating my copper then soaking it in muriatic acid and water, then dipping it in baking soda and water then finally rinse with plain water. After that I apply my patina with a brush working it into the copper and then let it dry. After it dries all the patination is flaking up so badly that I can not spray it.

I did however mix peroxide with the patina the other night and applied it and it seems to be doing better but I don't know if I did the right thing or not.

If anyone knows what I am doing wrong then please let me know. I have been dealing with this problem since I started dealing with patination and it is getting on my nerves!

Thanks in advance for any advise that you can give me.


Rich Waugh's picture

Try using the patination

Try using the patination solution at about half strength or less and apply it to slightly warmed metal. I recommend a spray bottle to mist it on, then simply let it sit overnight or longer. When a patina develops quickly, it will usually flake off, but id it develops slowly it is more permanent.

Let me know how it works out for you.


copperjoe's picture

patina

What do I cut the patina with? Also, Do I need the metal to be dry before appling the patina? I usally just do the final rinse then start adding patina chem. while it is still wet.

Thanks,
Copperjoe

Can't never could do Nothing!


visitor's picture

Test first

Hi, I do a lot of patina on new and old copper alloys.

Pickling may give you a really clean surface but sometimes the surface is too smooth and may need a little tooth such as rubbing with a worn green or red scotchbrite, and maybe with some of the diluted solution. Wear rubber gloves

Sometimes I have rubbed the surface with sand and water to roughen it up.

Sometimes you can apply the chemical, rub off most of the results the next day and apply again.

Use plain water to dilute. Distilled is not necessary.

Make a 50% dilution and try it on a scrap piece of copper. See how it holds up.

Experiment on the scraps until you get what you want.

Best, Tom.


marilyn's picture

You are probably getting the

You are probably getting the patina too thick. A thin layer will stay on a lot better.

marilyn


SteelyJan's picture

Jax Patinas

I've always found them problematic. A few people here recommended Birchwood Casey patinas and I think they are much better. More consistent. Patinas are so mysterious...room temperature etc. effects them . Good luck.. but try Birchwood Caseys products. SteelyJan


copperjoe's picture

patina

Thanks for all of your advice. I will try some of these the next time that I go to my shop. I really appreciate all of the help!

Thanks,
Copperjoe

Can't never could do Nothing!


Tom Podnar's picture

Patinas

Hi, I have used two of these green patinas on copper. They bit well and formed a tight bond on the surface. Best, Tom.

http://www.sculptnouveau.com/


visitor's picture

patina

sand the copper clean first, wipe totally clean with acetone, then apply jax patina. I use to have same problem on roofs.


copperjoe's picture

Thanks for your advise, I

Thanks for your advise, I usually try to do that but sometimes I get in a hurry or try to take a shortcut and miss that step. Thanks for the reminder.

Copperjoe

Can't never could do Nothing!