By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale May 23

Potting Adhesives : for Glass Fiber/Fibre Optic Bundles

Recommendations, please ...

All Topics | Latest Posts

Search for:  in Thread Title in  
Michael Gilligan13/02/2019 10:29:58
avatar
13058 forum posts
570 photos

I have a need to make some custom 'ends' for light guides.

... Schott glass, in fine strands

[currently in 1mm diameter bundles within a sheath]

There are many adhesives offered for this job ...

Most are rather costly, so I cannot really afford to experiment.

Can anyone please recommend a reasonably-priced product ?

MichaelG.

MichaelR13/02/2019 11:00:27
avatar
321 forum posts
52 photos

MichaelG, I have no knowledge of the subject you are working with but would this item be of use or what you are looking for.Link Mike.

Michael Gilligan13/02/2019 15:21:46
avatar
13058 forum posts
570 photos
Posted by MichaelR on 13/02/2019 11:00:27:

MichaelG, I have no knowledge of the subject you are working with but would this item be of use or what you are looking for.Link Mike.

.

Thanks, Mike ... That's certainly cheaper than some I have seen.

MichaelG.

Ian P13/02/2019 20:57:44
avatar
2088 forum posts
89 photos

I know little about terminating fibre optics so this product from Rapid Electronics might not suit your purpose but I have used it for both encapsulating LEDs and for potting subsea cable splices.

Its water clear, runs like water (almost), and when cured has some flexibility so its not brittle which might make subsequent surface polishing difficult, the 50mL twinpack is what I would call economic. Unfortunately Rapid recently only stock to order so lead time is quite long and MOQ make experimenting expensive.

Alh Systems A6175 NP1480 Water Clear Polyurethane Potting Compound 50ml Syringe

Rapid code 87-7176

Ian P

Michael Gilligan13/02/2019 21:14:13
avatar
13058 forum posts
570 photos

Thanks a lot for that, Ian

The product you mention would almost certainly be suitable for a related project that I have in mind [where the existing cable ends will be used] but, as you note, being slightly flexible it would probably prevent satisfactory polishing of cleaved fibres.

Much appreciated

MichaelG.

.

Edit: ... Drat !!

Just noticed the 24 unit 'minimum order quantity'

... now busy looking for an alternative supplier.

Edited By Michael Gilligan on 13/02/2019 21:19:17

Ian P13/02/2019 21:26:29
avatar
2088 forum posts
89 photos

Despite having some compliance I dont think it will prevent polishing the fibre strands, my comment originally was referring to polishing the resin surface.

I think the only alternative is ALH themselves but I dont know what their MOQ is.

Ian

Michael Gilligan13/02/2019 21:43:24
avatar
13058 forum posts
570 photos
Posted by Ian P on 13/02/2019 21:26:29:

Despite having some compliance I dont think it will prevent polishing the fibre strands, my comment originally was referring to polishing the resin surface.

.

Thanks for clarifying that, Ian

I have no need to polish the resin itself; just the fibres.

MichaelG.

charadam14/02/2019 01:00:17
173 forum posts
6 photos

MG - what on earth are you talking about?

Please educate me (and possibly others)!

Michael Gilligan14/02/2019 08:10:21
avatar
13058 forum posts
570 photos
Posted by charadam on 14/02/2019 01:00:17:

MG - what on earth are you talking about?

Please educate me (and possibly others)!

.

This sort of thing: **LINK**

https://www.edmundoptics.com/c/fiber-optic-light-guides/717/

MichaelG.

Roderick Jenkins14/02/2019 08:45:33
avatar
1734 forum posts
442 photos

Michael,

When I was scouting around looking for a metallurgical potting compound for home use I plumped for this stuff via Amazon **LINK** It sets hard and doesn't interfere with the grinding and polishing of the specimens. Actually it polishes up very nicely itself and seems very similar to the professional (expensive!) products I used to use in a former life.

Hope this helps,

Rod

Michael Gilligan14/02/2019 09:22:22
avatar
13058 forum posts
570 photos

Thanks for that, Rod

Good to have the benefit of your experience yes

Although it may not quite be suitable for my immediate needs, it certainly looks ideal for specimen preparation.

... I'm sure to need some soon.

MichaelG.

charadam14/02/2019 09:56:04
173 forum posts
6 photos

Michael, thank you.

Eyewatering prices on that website - I see why you DIY.

Neil Wyatt15/02/2019 10:09:44
avatar
Moderator
15951 forum posts
674 photos
73 articles

What kind of light guide are you making?

Neil

Michael Gilligan15/02/2019 10:31:09
avatar
13058 forum posts
570 photos
Posted by Neil Wyatt on 15/02/2019 10:09:44:

What kind of light guide are you making?

.

It's an area of experimentation, Neil ... so probably lots [good, bad and indifferent]

But the immediate interest is edge-lighting of microscope slides

so the 'round in' to 'line-out' variety ... on a rather small scale.

MichaelG.

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
TRANSWAVE Converters
Warco
Ausee.com.au
Eccentric Engineering
Eccentric July 5 2018
ChesterUK
emcomachinetools
Sarik
Allendale Electronics
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