By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

Gluing metal

All Topics | Latest Posts

Search for:  in Thread Title in  
coggy14/07/2020 21:31:13
15 forum posts

Does anyone know of an adhesive that will do this job, please?

I want to stick/glue a piece of mild steel about 4mm wide to a piece of hardened steel about 8mm wide. It needs to survive being outdoors but not during winter, so it shouldn't freeze. It will be getting wet and there is not much mechanical force trying to separate the pieces, say no more than you can push with your finger. It is a permanent fix and the glue needs to be concealed between the pieces.

Thanks.

 

Edited By coggy on 14/07/2020 21:32:45

mechman4814/07/2020 22:16:31
avatar
2693 forum posts
421 photos

Try two part epoxy resin; key both surfaces first.

George.

Martin Kyte14/07/2020 22:31:12
avatar
1903 forum posts
34 photos

Silicone sealent ?

regards Martin

Bandersnatch14/07/2020 22:39:37
avatar
1659 forum posts
60 photos

Agree with George.

Clean the pieces with alcohol before bonding. Then clean them again.

Mix the two parts of the epoxy. Then mix them again.

 

Edited By Bandersnatch on 14/07/2020 22:44:41

Maurice15/07/2020 03:31:27
468 forum posts
50 photos

You might consider “J.B. Weld. I used this on a job, and placed the parts incorrectly. When this has happened with “Arraldite”, a smart tap with a hammer has broken the bond, ready for a retry. Not with J.B. Weld. All that hitting it with a hammer did was to dent the surface. I had to heat it up with a torch to get it apart!

Maurice

Plasma15/07/2020 06:58:39
417 forum posts
50 photos

Plus 1 for JB Weld.

I use it for model making too, creating authentic looking castings from fabricated parts with it.

There are two types, standard which takes a long time to set up and rapid which just takes a few minutes.

It contains steel filings so gluing magnets can be difficult.

Scrupulous cleaning is a must like any gluing, soldering operation.

Mick

Kiwi Bloke15/07/2020 07:02:41
443 forum posts
1 photos

Loctite 380 Black Max. Given scrupulous cleansing before use, it's much better than 'standard' cyanoacrylates, being rubber-toughened. A 'must' for the toolbox!

Derek Lane15/07/2020 09:14:41
avatar
334 forum posts
75 photos

As above 2 part epoxy glue abrade and clean the mating surfaces

Robert Atkinson 215/07/2020 09:54:36
avatar
705 forum posts
16 photos

4mm wide, but how long snd how thick? What is the bond area? That said a metal filled epoxy like JB weld, Araldite Steel is likely to be the best choice if you want a hidden bond as the glue line or fillet will look like steel. but from your described requirements any epoxy or super glue would work. For structural meatal bond toughned acrylic like Loctte 330 or Permabond TA435 are a good option.

Robert G8RPI

coggy15/07/2020 13:53:40
15 forum posts

Thanks all, that gives me some ideas to look at.

John Haine15/07/2020 14:15:31
3183 forum posts
172 photos

Gorilla glue clear may also work.

Martin Hamilton 115/07/2020 14:33:17
179 forum posts

That's a no brainer, JB Weld original. Incredible what this stuff will do, you can even drill & tap threads in it. It also takes more heat to break a bond than just about any other 2 part adhesive.

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
EngineDIY
Allendale Electronics
Warco
Eccentric July 5 2018
ChesterUK
emcomachinetools
cowells
Eccentric Engineering
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