Black stain spreading on keris during vinegar cleaning

[ariel]

I have cleaned rusty and heavily patinated blades ( NOT krises!) with “ Renaissance Metal de-corroder”. On top of efficacy, there is no need to use gloves.
Cover the blade generously with the gel, using reasonably narrow brush, wrap in plastic ( I used Saran Wrap) leave for 24-48 hours, unwrap, wash the gel off under faucet, dry and Â…thatÂ’s all. Rust goes away, some patina stays. Then , if satisfied, oil. I use melted Renaissance wax: when semiliquid, it gets into all scratches and crevices. If not, I would guess needs repeating or polishing.

I like mine with some patina ( kisses of time), so never had to go beyond the first step.

[David]

Originally Posted by ariel

I have cleaned rusty and heavily patinated blades ( NOT krises!) with “ Renaissance Metal de-corroder”. On top of efficacy, there is no need to use gloves.
Cover the blade generously with the gel, using reasonably narrow brush, wrap in plastic ( I used Saran Wrap) leave for 24-48 hours, unwrap, wash the gel off under faucet, dry and Â…thatÂ’s all. Rust goes away, some patina stays. Then , if satisfied, oil. I use melted Renaissance wax: when semiliquid, it gets into all scratches and crevices. If not, I would guess needs repeating or polishing.

I like mine with some patina ( kisses of time), so never had to go beyond the first step.

I have no doubt this is an effective way to clean rust Ariel. However, this current discussion is regarding the STAINING process for keris, either with warangan or some other process that will darken the iron and raise the pamor pattern, not how to remove rust. The rust removal set for keris would precede the staining process.