Araldite?

[kenbro]

I’m trying to modify a T3, 222 magazine to feed 221 Fireball carts.
Last night I cut a section out of one piece and stuck an 8mm metal spacer in another part of the magazine.
I used 5 minute Araldite for both jobs.
Left the parts in my heated shed overnight.
Just been to reassemble the “new” magazine and the damn glue has not hardened!
Any ideas anyone?
Looked on the tubes of an end of life date but nothing there.
No idea what these mags are made of, whether injection mouldings or perhaps printed these days.
Thanks, Ken.

 

[finnbear270]

Sounds like a mixing failure.

 

[HonestJohn]

Most likely an issue with the chemicals in the parts reacting with the glue. Try JB weld

 

[splash]

Try washing away with carb cleaner

 

[finnbear270]

Blurb; 5 Minute Araldite, a two-part epoxy adhesive, can bond many materials, including glass, metal, wood, leather, rubber, and most plastics

Always use equal volumes of both the resin and hardener.
Stir well to ensure the components are completely combined.

 

[Donkey Basher]

The mag will be made of a glass reinforced plastic.

Test the glue by making a small amount up & leave it where you mixed it (bit of cardboard off the top of a cereal box) to see if it goes off as it should. If it doesn’t then you know it is the problem. If it does then the problem is elsewhere - possibly a reaction with the plastic but I’d be very surprised if it is.

 

[Tazz]

Having used both the standard Araldite and the fast setting it could be a mixing issue, not fully mixed or not fully 1:1. Or out of date it does have a finite shelf life, the slower cure stuff also does not like low temperatures

 

[VSS]

I’m trying to modify a T3, 222 magazine to feed 221 Fireball carts.
Last night I cut a section out of one piece and stuck an 8mm metal spacer in another part of the magazine.
I used 5 minute Araldite for both jobs.
Left the parts in my heated shed overnight.
Just been to reassemble the “new” magazine and the damn glue has not hardened!
Any ideas anyone?
Looked on the tubes of an end of life date but nothing there.
No idea what these mags are made of, whether injection mouldings or perhaps printed these days.
Thanks, Ken.

Humidity too high.

 

[Bavarianbrit]

I understand that Araldite or any 2 component adhesive will not stick to plastic. Plastics need to have the surface treated usually with a flame to render the surface acceptable for usually a paint finish as in car bumpers. Super glue to both items then sprinkle bicarbonate of soda on as an accelerator might work better.

 

[VSS]

I understand that Araldite or any 2 component adhesive will not stick to plastic. Plastics need to have the surface treated usually with a flame to render the surface acceptable for usually a paint finish as in car bumpers. Super glue to both items then sprinkle bicarbonate of soda on as an accelerator might work better.

No they don't, mostly. But that doesn't stop the glue from setting.
It won't set if:
You use too much hardener in the mix;
There's oil on the thing you're trying to glue or on your mixing stick etc;
The humidity is too high.

 

[paul o']

JB WELD is what I'd have used as you can shape it when hard.

 

[kenbro]

Humidity too high.

Brain cell count too low…

 

[kenbro]

No they don't, mostly. But that doesn't stop the glue from setting.
It won't set if:
You use too much hardener in the mix;
There's oil on the thing you're trying to glue or on your mixing stick etc;
The humidity is too high.

VSS;
You missed one out..
I’m now sure I squeezed 12mm from a tube and put it down, I then picked up the same tube again and deposited another 12mm before mixing!
Was revisiting the process in my mind and thought oh, I don’t remember seeing a milky colour when mixing!
Tried doing it the right way and it worked.
Except the experiment was a failure .
I wanted to make my T3 222 feed 221 Fireball cartridges so I practised loading the FBs in the 222 mag but not pushing them right to the back of the mag. In controlled conditions this work well but with nothing to keep the carts from moving back under their own steam when the bolt was worked on rifle bumped I could rely on that.
So I bought a new magazine (£50) and cut 8mm out of the follower that the magazine spring pushes up. Cut and shut job there, hence the Araldite.
Then had to make a 8mm square x 40 mm long spacer to glue inside the mag for the cart heads to slide against when loading or shooting. I remembered the the square bar that goes through door locks to put a handle one each end are 8mm square, and I just happened to have one. (Don’t need to open that door for a while anyway ) Mixed some real Araldite, stuck things together (5 mins stuff) and jobs a good un?
Shortens one end of the flat magazine spring and sssemble.
Total failure to feed.
I think it’s the new shorter length Follower that now pivots from a different place. But I effect it’s still pivoting relative to how it would before I chopped the mag.
One idea would be putting a stop on the original length follower but that would restrict me to single loading.
Ken.

 

[Klenchblaize]

I find adding aluminium fillings to the mix provides extra strength and requires the use of less epoxy. About the same volume as whatever you squeeze from one tube.

The sanded finish also looks rather cool and in sympathy with the adjoining metal.

K

 

[Bavarianbrit]

My Lambretta Li150 cylinder head burnt a hole out to the air in the gasket area I used Araldite & aluminium filings mixed to repair it and it held for the next year that I kept it.

 

[scotch_egg]

I wouldn’t have put it in the oven. It’s not a heat curing compound. There is heat generated via the chemical reaction when mixing a two part epoxy. I would imagine that allowing it to cool and set is the way to go. I’m no engineer or expert but have used quite a lot of this type of glue. Don’t ask why….

 

[kenbro]

Sounds like a mixing failure.

I wouldn’t have put it in the oven. It’s not a heat curing compound. There is heat generated via the chemical reaction when mixing a two part epoxy. I would imagine that allowing it to cool and set is the way to go. I’m no engineer or expert but have used quite a lot of this type of glue. Don’t ask why….

Hey s-e;
Did someone mention putting it in an oven?

Just wondering where that came from?
Cheers, Ken.

 

[Bavarianbrit]

I wouldn’t have put it in the oven. It’s not a heat curing compound. There is heat generated via the chemical reaction when mixing a two part epoxy. I would imagine that allowing it to cool and set is the way to go. I’m no engineer or expert but have used quite a lot of this type of glue. Don’t ask why….

Exotherm?

 

[scotch_egg]

Hey s-e;
Did someone mention putting it in an oven?

Just wondering where that came from?
Cheers, Ken.

Flipping words jumbling again. I read heated shed oven instead of “over”