# Bolt coating

**URL:** https://forums.speedlife.net/t/bolt-coating/241389
**Category:** Shift518 Off Topic
**Created:** [January 15, 2009, 12:22pm UTC](https://forums.speedlife.net/t/bolt-coating/241389 "2009-01-15T12:22:25Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![Mafdark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mafdark/32/6322_2.png) [@Mafdark](https://forums.speedlife.net/u/Mafdark)
#### Post date: [January 15, 2009, 6:31pm UTC](https://forums.speedlife.net/t/bolt-coating/241389/10 "2009-01-15T18:31:06Z")

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> [@BMW ?'s](https://forums.speedlife.net/t/bmw-s/12608/18):
>
> Yes ZBC on steel or hard anodize black if they’re the aluminum fasteners. You need something wear and UV resistant and both meet those requirements.
> 
> Neither are cheap processes on the consumer end for small quantity.
> 
> You can do a home brewed “anodizing” on steel parts with and acid etch color dye process by taking sulfuric acid and ultra concentrate color dye(fabric dye) and dipping the parts for a brief time. Just be UBER careful using that stuff. Or you can try PPG Rust Mort. Soak parts ~24-36hrs and they tend to get a grayish/black corrosion barrier on them

Interesting. Where can I pickup sulfuric acid other than stealing it from the lab?

where can i find the ppg rust mort? would it chip off?

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