Letter 34070

Cleaning old locks  

+++++

I have lots of old locks made out of steel, gold, iron, brass, copper and un knows how do I clean them with out damaging them.

Aron Randall
- Alpheratta, Georgia, USA

You can use citric acid solution(5%), or ammonium citrate solution(mixture of 5o gm citric acid/1 lit water+ some ammonia(25%), pH of solutions must be 3,5 for iron and steel, pH 9 for copper and its alloys, last solution can be used for gilt pieces,i n principle one solution for one metal).WD 40 or Ballistol can be used too (works very slow).

Good luck!

Goran Budija
- Zagreb, Croatia

Answer or follow-up on this subject (in non-commercial fashion).

 

My company is a supporting advertiser at finishing.com and we want the contact information to reach the inquirer privately.

 

Post a new question or inquiry on a different subject.