How can I bond ABS (plastic) to NRL (rubber)?

[John Smith 47Participant @johnsmith47]

Posted by Michael Gilligan on 26/01/2022 00:57:00:

You might want to check that closing line, John … and correct it accordingly.

” Latex can be stretched to a length of about x2, whereas the latex can easily do x3. ”

MichaelG.

Good spot, but now too late to edit… 
The first stretch was of course the silicone rubber.

At a quick re-test of my rubber sheets, I am getting Silicone rubber x2.5, and NRL about twice that at x5.

To be fair, it's not 100% clear where the elastic limit lies. Not least because it depends on how long you hold the stretch. That said, the exact degree of elasticity is less important than the model falling to pieces due to shear forces overwhelming inadequate adhesives.

J

Edited By John Smith 47 on 26/01/2022 09:32:33

[Michael GilliganParticipant @michaelgilligan61133]

Posted by John Smith 47 on 26/01/2022 09:31:22:

[…]

That said, the exact degree of elasticity is less important than the model falling to pieces due to shear forces overwhelming inadequate adhesives.

.

Despite the fact that we all know that adhesive tapes will peel …

Did you ever try using the “heavy-duty, double-sided, carpet-fitting for the use-of” tape which I originally suggested ?

Its mechanical properties must be pretty close to your requirements, although it permits no time for adjustment.

.

MichaelG.

[John Smith 47Participant @johnsmith47]

Posted by Michael Gilligan on 26/01/2022 11:31:35:

Posted by John Smith 47 on 26/01/2022 09:31:22:

[…]

That said, the exact degree of elasticity is less important than the model falling to pieces due to shear forces overwhelming inadequate adhesives.

.

Despite the fact that we all know that adhesive tapes will peel …

Did you ever try using the “heavy-duty, double-sided, carpet-fitting for the use-of” tape which I originally suggested ?

Its mechanical properties must be pretty close to your requirements, although it permits no time for adjustment.

.

MichaelG.

No, I confess I haven't tried any more adhesive tapes – neither double-sided or transfer tapes – because I have been unable to identify anything that sets hard. Do you have any specific suggestions/recommendations?

Also I am extremely keen to have something that permits a little adjustment time. Although I have bought a water sprayer for the purpose, if I can find something that claims to set rather than just use tack.

J

[Michael GilliganParticipant @michaelgilligan61133]

No, sorry … The tape I have ‘in stock’ is probably thirty years old, and is just a remnant.

There is no identifying ‘branding’ on the reel

It’s 50mm wide and the tape itself is ‘flesh pink’ [the colour commonly used for prosthetic devices]

I can only suggest that you enquire of a friendly local carpet fitter.

MichaelG.

.

As already stated, though : it is instant stick [no time for adjustment]

Edited By Michael Gilligan on 26/01/2022 13:54:06

[John Smith 47Participant @johnsmith47]

Have any of you come across "Poly Kits" from Tech-Bond

**LINK**
(https://tbbonding.com)

They claim to be able to bond basically any plastic to any plastic including PP, PP and even PTFE…!

Too good to be true?

J

[John Smith 47Participant @johnsmith47]

Posted by John Smith 47 on 27/01/2022 19:05:05:

Have any of you come across "Poly Kits" from Tech-Bond

**LINK**
(https://tbbonding.com)

They claim to be able to bond basically any plastic to any plastic including PP, PP and even PTFE…!

Too good to be true?

J

Btw, I have been in touch with the manufacturers. And they are still talking a big game about what they can bond that nobody else can bond. I think I have found some a 'good enough' solution using the E41, which does allow a bit of repositioning time, which the tech-bond stuff doesn't readily offer (not without tweaking their protocols that is).

They are US-based and when I asked them about UK distributors they said that there aren't any. But he then asked me if I knew of anyone who might be interested?

So… anyone here interested?

It does SOUND like amazing technology…

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