By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale July 23rd

Cold Blue


All Topics | Latest Posts

Search for:  in Thread Title in  
Chris Short 117/03/2019 15:20:50
6 forum posts

i would like to cold blue some of the workshop tools I have made

What make of solution do you recommend from your own experience and where can I get it from


Mick B117/03/2019 15:39:05
1148 forum posts
63 photos

The best I found was G96 gun bluing paste. Wash everything in very hot detergent water and apply the paste whilst metal's still hot to the touch. Small paintbrush works quite well. Wash off thoroughly and oil up lightly. Wear rubber gloves throughout.

There's also KoldBlak. I found that worked, but less well, and more faffing.


Edited By Mick B1 on 17/03/2019 15:39:45

Plasma17/03/2019 16:55:07
331 forum posts
41 photos

I have a few old tools that have a really decorative pattern of blueing.

They look like the marbled paper you see in expensive books.

I've often wondered how that was done as it looks so effective.

AdrianR17/03/2019 17:11:45
272 forum posts
20 photos

Have you read the wiki page It describes several methods, one, Colour Case Hardening sounds like it could be your marbled paper effect.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Eccentric Engineering
Meridienne oct 2019
Eccentric July 5 2018
TRANSWAVE Converters
Advertise With Us
Allendale Electronics
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest