Durafix
 

Hi,

I want to repair a thread in an aluminium lid. I think that it is 3/16 BSF.

I have been looking on the net for ways of doing this and thinking that
approx £20 for a helicoil kit was a bit much for a one off job,

I came across Durafix and a demonstration on youtube showing how to
restore threads with it.

Has anybody used it?

Is it any good?

thanks

Durafix
 

In article ,
Dan Smithers wrote:
I want to repair a thread in an aluminium lid. I think that it is 3/16
BSF.

I have been looking on the net for ways of doing this and thinking that
approx £20 for a helicoil kit was a bit much for a one off job,

I've often thought hiring out such kits against a deposit could be quite
useful. But I don't know anyone who does this.

I came across Durafix and a demonstration on youtube showing how to
restore threads with it.

Has anybody used it?

Is it any good?

Dunno.

You could get it argon arc welded if you have a local place which does
such things - if you left it for them to fit in with other work.

--
*How's my driving? Call 999*

Dave Plowman London SW
To e-mail, change noise into sound.

Durafix
 

On 27 Jan, 14:02, Dan Smithers wrote:

I want to repair a thread in an aluminium lid. I think that it is 3/16 BSF.

BSF? Try uk.rec.engines.stationary

If it were metric, I'd have suggested a back-street garage or
engineering machine shop. Most people who have a Helicoil set are
happy to do one-offs for a few quid.

I'm not familiar with Durafix, but assuming it's a steel-loaded epoxy
like JB Weld, it ought to do OK.

For most purposes, any filled epoxy will do this. UK.D-I-Yers ought to
keep some decent low-viscosity epoxy around (West System do a handy
pack) and mix it up with suitable fillers as needed. On-demand filled
epoxies are _much_ more use (and cheaper) than raw resins, or pre-
thickened tubes. Almost any powdery filler will do for rebuilding
threads for attachment purposes, it's a bit harder if you care about
release afterwards, high temperatures or working life in a moving part.

Durafix
 

Andy Dingley wrote:
On 27 Jan, 14:02, Dan Smithers wrote:

I want to repair a thread in an aluminium lid. I think that it is 3/16 BSF.

BSF? Try uk.rec.engines.stationary

If it were metric, I'd have suggested a back-street garage or
engineering machine shop. Most people who have a Helicoil set are
happy to do one-offs for a few quid.

I'm not familiar with Durafix, but assuming it's a steel-loaded epoxy
like JB Weld, it ought to do OK.

For most purposes, any filled epoxy will do this. UK.D-I-Yers ought to
keep some decent low-viscosity epoxy around (West System do a handy
pack) and mix it up with suitable fillers as needed. On-demand filled
epoxies are _much_ more use (and cheaper) than raw resins, or pre-
thickened tubes. Almost any powdery filler will do for rebuilding
threads for attachment purposes, it's a bit harder if you care about
release afterwards, high temperatures or working life in a moving part.

Could you not use a mould release agent on the fastener's threads, so as
to get the fastener out after curing? Or does the adhesive expand when
it cures?

Dave