What is Copper Patina

by deborah
(ft collins, CO.)

Hi there,
I've been soldering for years and am self taught and have never known what makes up copper patina.

Answer

Hi Deborah,

Copper Patina is used on copper foil pieces to make the solder lines an antique copper color. It compliments most colors of glass including clear. I use it on almost every copper foil piece I make. I prefer copper colored solder seams to the silver color of solder.

Copper Patina is made by several manufacturers and every stained glass hobbiest has their personal favorite.

Copper patina can be made at home using copper sulfate crystals and warm water. If you read through the questions in this section you will find the specifics for making your own.

The copper color is caused by a chemical reaction between copper sulfate and the tin in solder.