Letter 36029

Gun bluing trouble  

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What is the correct formula of hot caustic bluing for making up a bluing bath for refinishing guns, and can we regenerate the bath again and again , and how can we extend the life of the bath, as I am making the bath in the following manner:
caustic soda 10 kg
sodium nitrate 10kg
water 10 liters.
The bath forms red cast on the parts which is easily rubbed off but the bath lasts only an hour or so,please advise.

Inderjit Sidhu
firearms - Patiala, Punjab, India

Hi Inderjeet,

Forget about your formula search and buy the correct readymade product from any reputed company in your country.

Khozema Vahanwala Automaxx   Bangalore, Karnataka, India

Wath is de formula for gun blue hot cauistic blueing for home make, I want bluing my gun is old and has rust
thanks,,

Santi Salinas
- Quito, Ecuador

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