Liquid Metal

[mick88]

Does anyone have any experience with a good quality liquid metal that sets realy hard?
I have an application that I cannot get at to weld, so the next best option seems to be to fill a one millimeter gap with some form of liquid metal to stop movement.

In anticipation,
Thanks and cheers for now.
Mick :confused::confused::confused:

[strangy]

Devcon products are very good. I have used them to repair crank cases. Well prepared surfaces are the key to good bond.

Depends on the cause of the problem in the first instance as to how well/ long the repair will last. i.e a structural fail will likely reoccur if not fixed , same as welding.

Cheers

[rick130]

I use Loctite 'Liquid Metal' for quick repairs to shafts or bearing housings on jobs that I need to get going now.

Devcon, as said make great epoxies, and I've just started using JB Weld on some saw stuff as it has a higher operating temp than Devcon.

Note that for any epoxy to work successfully you need the parent metals etched and scrupulously clean, which means repeated cleaning with isopropyl alcohol or methyl ethyl ketone (nasty stuff and a carcinogen)

[goingbush]

another Vote for JB Weld , very excellent product & a must have in the Landy Spares kit

sometimes hard to find here so I get it from USA via ebay ,

[DieselDan]

JB Weld for me too, used it plenty of times on my old Lighthweight!

Only used Devcon once, but it too is good stuff.

Dan

[shorty943]

I agree with strangy, I have used Devcon to repair worn shafts etc in industrial applications many times.
Sets hard enough to machine in a lathe and can be drilled and tapped.
As strangy says, good preparation is the key to a good finished job, best if you can remove the part and do it on a bench and lathe it to finish if at all posible.

[MR LR]

We use devcon on all the old car bodies, to cover screws, also as other said for repairing crankcases or whateve, sets hard, is machinable and we've never had a failure.
It is also failry available, dad got a big box at Bunnings, it seems to have metal grit in it to, the little tubes are smooth (no grit)

Cheers
Will

[rick130]

We use devcon on all the old car bodies, to cover screws, also as other said for repairing crankcases or whateve, sets hard, is machinable and we've never had a failure.
It is also failry available, dad got a big box at Bunnings, it seems to have metal grit in it to, the little tubes are smooth (no grit)

Cheers
Will

You van get iron, aluminium, bronze, titanium, etc filler with Devcon.

Belzona is another very good epoxy/filler.

[Fluids]

I'll second the Belzona product ... but it's bloody expensive. Years ago I saw it used to rebuild badly cavitation worn impellers in power station cooling pumps (at a fraction of the cost of new impellers) and it works and lasts exceptionally well.

... but bloody expensive.

[mick88]

A big thankyou to all who responded to my question.


Cheers, Mick.

[Blknight.aus]

Devcon.. its aircraft rated.... well some of the range is.


one thing not yet mentioned is you MUST protect the devcon (jb weld, loctite liquid metal) once its set. on some metals it will encourage rust to form at the "joint" of the devcon and the parent metal, once the rust creeps in far enough it will either leak or come apart.

If its to seal up on the cooling system and if its not structural you can get away with normal epoxy.

[uninformed]

I use Loctite 'Liquid Metal' for quick repairs to shafts or bearing housings on jobs that I need to get going now.

Devcon, as said make great epoxies, and I've just started using JB Weld on some saw stuff as it has a higher operating temp than Devcon.

Note that for any epoxy to work successfully you need the parent metals etched and scrupulously clean, which means repeated cleaning with isopropyl alcohol or methyl ethyl ketone (nasty stuff and a carcinogen)

where are you using it on your saws? what temp are you expecting to see? I have read that the crankcase will only see about 150c max??? I have also been told that JB doesnt like alcohol....A few of our USA friends think Devcon is better than JB. I am leading towards devcon for the full circle crank, unless I can be sure that foam/carbon glass and expoy resin will be fine???

Yes I found all the small cuts and nicks in my fingers when I used MEK
Is MEK a good etch'r for steel also?

[rick130]

I used it on the carby and I was going to use it on the transfers.

One of the blokes on the old RS site was using Belzona (I have the numbers of which one somewhere)
He reckoned it was better than JB for building/making new transfers and boost ports.

Devcon was all I used twenty odd years ago, but there weren't many quality epoxies around, other than the speciality aircraft ones like the 3M Scotchweld 2216BA (I think) that we used for bonding racecars together (and I still have a couple of tubes in the freezer, but It'd be cactus now)