Loctite shelf life

[Peter G. ShawParticipant @peterg-shaw75338]

Michael,

To tell the truth, I haven't used them that much and can't really think when and where I did try them. I also think that on at least one occasion, it probably wasn't a suitable adhesive because I can remember thinking I'll try this and see what happens.

I have tried superglue occasionally. Again, that not really work.

I have a suspicion it may be down to a combination of surface preparation, specifically cleanliness and smoothness. Epoxy adhesives do have gap filling properties.

I know that on numerous occasions I have used good old Araldite because nothing else has seemed to work. Certainly on one item I have been, and still am, surprised that years later it is still holding – this was one of SWMBO's garden ornaments in the shape of duck where it broke across the neck. It is quite heavy and can still be lifted by the neck.

I have been using Araldite for nearly 50 years now, the first ocasion being a repair on my Austin A35 van. On these vehicles, the door windows were pushed/pulled up & down by a small piece of glass perhaps 10 x 50mm which was glued onto the window itself. When one came off, I used Araldite (what is now called the Standard version – 24 hours full setting time) to glue it back on. Initially, it was held in place with Sellotape or equivalent.

Araldite doesn't always work. Eg, little grandaughter presented me with a toy horse with a broken leg. I glued it up, but a few weeks later back it came. This time I pinned it as well.

As you can see, I like Araldite. I wonder if I'm addicted to it!!!

Regards,

Peter

[jason udallParticipant @jasonudall57142]

in the past in production ABS..poly propolene .PVDF.all glued with some thing abs to ali proved tricky until a larger glue line provided.

Teflon…now theres a chalenge.. tends to be "coated" onto substrate in molten form or vapour deposited..

[jason udallParticipant @jasonudall57142]

in the past in production ABS..poly propolene .PVDF.all glued with some thing abs to ali proved tricky until a larger glue line provided.

Teflon…now theres a chalenge.. tends to be "coated" onto substrate in molten form or vapour deposited..

[jason udallParticipant @jasonudall57142]

in the past in production ABS..poly propolene .PVDF.all glued with some thing abs to ali proved tricky until a larger glue line provided.

Teflon…now theres a chalenge.. tends to be "coated" onto substrate in molten form or vapour deposited..

[Ian S CParticipant @iansc]

In NZ there is a group of people who collect time expired medicines, and used medical equipment for use in 3rd world countries. I remember when I was nursing, one job I had was a monthly stock take of drugs, and sterilized gear for use by dates, In those days we sterilized our own dressing packs, made up from the left overs of comercial pack, but thats a NO NO now days. Ian S C

[Ian S CParticipant @iansc]

In NZ there is a group of people who collect time expired medicines, and used medical equipment for use in 3rd world countries. I remember when I was nursing, one job I had was a monthly stock take of drugs, and sterilized gear for use by dates, In those days we sterilized our own dressing packs, made up from the left overs of comercial pack, but thats a NO NO now days. Ian S C

[Ian S CParticipant @iansc]

In NZ there is a group of people who collect time expired medicines, and used medical equipment for use in 3rd world countries. I remember when I was nursing, one job I had was a monthly stock take of drugs, and sterilized gear for use by dates, In those days we sterilized our own dressing packs, made up from the left overs of comercial pack, but thats a NO NO now days. Ian S C

[john fletcher 1Participant @johnfletcher1]

My Austin A30 van had the same window problem. Where I worked we had some wonderful two part adhesive now known as Araldite, which had very good insulation properties and which we used when repairing traction motors. I thought I'd give it a try on the window catches, they never came off again. We also had another two part material, which the fitters used to mix up and squirt into very hot cracked exhaust manifolds as a temporary repair, brilliant stuff. I wonder what the research chemists are developing today, ready for use in the future. Ted

[john fletcher 1Participant @johnfletcher1]

My Austin A30 van had the same window problem. Where I worked we had some wonderful two part adhesive now known as Araldite, which had very good insulation properties and which we used when repairing traction motors. I thought I'd give it a try on the window catches, they never came off again. We also had another two part material, which the fitters used to mix up and squirt into very hot cracked exhaust manifolds as a temporary repair, brilliant stuff. I wonder what the research chemists are developing today, ready for use in the future. Ted

[john fletcher 1Participant @johnfletcher1]

My Austin A30 van had the same window problem. Where I worked we had some wonderful two part adhesive now known as Araldite, which had very good insulation properties and which we used when repairing traction motors. I thought I'd give it a try on the window catches, they never came off again. We also had another two part material, which the fitters used to mix up and squirt into very hot cracked exhaust manifolds as a temporary repair, brilliant stuff. I wonder what the research chemists are developing today, ready for use in the future. Ted

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Peter, the Loctite retainers are designed to be used on cylindrical items. One common use that we had for these, where I used to work a few years back, was where a ball bearing had spun on it's journal and thus making a new bearing a slide on fit instead of a press on fit. Providing there was no shake to talk about we used Loctite 638 to glue a new bearing on which often saved buying or making a new shaft, of which some of them were very expensive. You had to heat the bearing up and tap it off fairly quickly when it needed another new bearing though.

Another job was a helical pinion on a motor shaft, after many times these pinions were pulled off the motor shaft and fouling the locking nut on the shaft with the gear that this one was driving, the gearbox manufacture came up with this remady and it worked fine.

I used To use Industrial two pack Araldite way back in the 70's for sticking 5 ft stainless steel screen cloth to a circular box section ring which was then clamp into the machine. I remeber having to wiegh out the two epoxies quite precisely, other wise it would not go off. The screen cloth had to be bolted into a frame to make it taut, the Araldite was then mixed and applied to the ring and then the frame with the cloth was lowered on to it. The Araldite would then ooze through the cloth and puddle flat, it then had to be covered with a tarpulin and left for at least 24 hours before trimming the cloth to suit the outside of the ring.

Regards Nick.

Edited By Nicholas Farr on 09/05/2013 18:21:18

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Peter, the Loctite retainers are designed to be used on cylindrical items. One common use that we had for these, where I used to work a few years back, was where a ball bearing had spun on it's journal and thus making a new bearing a slide on fit instead of a press on fit. Providing there was no shake to talk about we used Loctite 638 to glue a new bearing on which often saved buying or making a new shaft, of which some of them were very expensive. You had to heat the bearing up and tap it off fairly quickly when it needed another new bearing though.

Another job was a helical pinion on a motor shaft, after many times these pinions were pulled off the motor shaft and fouling the locking nut on the shaft with the gear that this one was driving, the gearbox manufacture came up with this remady and it worked fine.

I used To use Industrial two pack Araldite way back in the 70's for sticking 5 ft stainless steel screen cloth to a circular box section ring which was then clamp into the machine. I remeber having to wiegh out the two epoxies quite precisely, other wise it would not go off. The screen cloth had to be bolted into a frame to make it taut, the Araldite was then mixed and applied to the ring and then the frame with the cloth was lowered on to it. The Araldite would then ooze through the cloth and puddle flat, it then had to be covered with a tarpulin and left for at least 24 hours before trimming the cloth to suit the outside of the ring.

Regards Nick.

Edited By Nicholas Farr on 09/05/2013 18:21:18

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Peter, the Loctite retainers are designed to be used on cylindrical items. One common use that we had for these, where I used to work a few years back, was where a ball bearing had spun on it's journal and thus making a new bearing a slide on fit instead of a press on fit. Providing there was no shake to talk about we used Loctite 638 to glue a new bearing on which often saved buying or making a new shaft, of which some of them were very expensive. You had to heat the bearing up and tap it off fairly quickly when it needed another new bearing though.

Another job was a helical pinion on a motor shaft, after many times these pinions were pulled off the motor shaft and fouling the locking nut on the shaft with the gear that this one was driving, the gearbox manufacture came up with this remady and it worked fine.

I used To use Industrial two pack Araldite way back in the 70's for sticking 5 ft stainless steel screen cloth to a circular box section ring which was then clamp into the machine. I remeber having to wiegh out the two epoxies quite precisely, other wise it would not go off. The screen cloth had to be bolted into a frame to make it taut, the Araldite was then mixed and applied to the ring and then the frame with the cloth was lowered on to it. The Araldite would then ooze through the cloth and puddle flat, it then had to be covered with a tarpulin and left for at least 24 hours before trimming the cloth to suit the outside of the ring.

Regards Nick.

Edited By Nicholas Farr on 09/05/2013 18:21:18

[Ian AbbottParticipant @ianabbott31222]

I have a bottle of red from 1978 and it's still good. 'Sbeen out at 45 below Centigrade and 39 above, which doesn't seem to have worried it.

Ian

[Ian AbbottParticipant @ianabbott31222]

I have a bottle of red from 1978 and it's still good. 'Sbeen out at 45 below Centigrade and 39 above, which doesn't seem to have worried it.

Ian

[Ian AbbottParticipant @ianabbott31222]

I have a bottle of red from 1978 and it's still good. 'Sbeen out at 45 below Centigrade and 39 above, which doesn't seem to have worried it.

Ian

[nigel jones 5Participant @nigeljones5]

Seriously, if you were to test the well out of date loctite against specification they would fail. We used to…and they did.

I use bearing retainer to seal sight glasses, brillians stuff!

[nigel jones 5Participant @nigeljones5]

Seriously, if you were to test the well out of date loctite against specification they would fail. We used to…and they did.

I use bearing retainer to seal sight glasses, brillians stuff!

[nigel jones 5Participant @nigeljones5]

Seriously, if you were to test the well out of date loctite against specification they would fail. We used to…and they did.

I use bearing retainer to seal sight glasses, brillians stuff!

[Michael GilliganParticipant @michaelgilligan61133]

Posted by fizzy on 11/05/2013 02:17:34:

Seriously, if you were to test the well out of date loctite against specification they would fail. We used to…and they did.

.

That's interesting … but it does beg some questions:

1. what constitues "well out of date" ?
2. which aspect of the specification ?
3. how did you test ?
4. by how much did they fail ?
5. which grades did you test ?
6. is it equally true for all grades tested ?

I am very keen to understand.

Thanks

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by fizzy on 11/05/2013 02:17:34:

Seriously, if you were to test the well out of date loctite against specification they would fail. We used to…and they did.

.

That's interesting … but it does beg some questions:

1. what constitues "well out of date" ?
2. which aspect of the specification ?
3. how did you test ?
4. by how much did they fail ?
5. which grades did you test ?
6. is it equally true for all grades tested ?

I am very keen to understand.

Thanks

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by fizzy on 11/05/2013 02:17:34:

Seriously, if you were to test the well out of date loctite against specification they would fail. We used to…and they did.

.

That's interesting … but it does beg some questions:

1. what constitues "well out of date" ?
2. which aspect of the specification ?
3. how did you test ?
4. by how much did they fail ?
5. which grades did you test ?
6. is it equally true for all grades tested ?

I am very keen to understand.

Thanks

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

For those interested:

I've just found Henkel's single page Shelf Life Policy

I'm disappointed to find it more "Policy" than "Information".

MichaelG.

.

Edit:  There is another version here.

Edited By Michael Gilligan on 11/05/2013 08:30:10

[Michael GilliganParticipant @michaelgilligan61133]

For those interested:

I've just found Henkel's single page Shelf Life Policy

I'm disappointed to find it more "Policy" than "Information".

MichaelG.

.

Edit:  There is another version here.

Edited By Michael Gilligan on 11/05/2013 08:30:10

[Michael GilliganParticipant @michaelgilligan61133]

For those interested:

I've just found Henkel's single page Shelf Life Policy

I'm disappointed to find it more "Policy" than "Information".

MichaelG.

.

Edit:  There is another version here.

Edited By Michael Gilligan on 11/05/2013 08:30:10

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