[PSUBS-MAILIST] Subconn OM Connector Primers

[Justin Helland via Personal_Submersibles]

Hi Sean! I've ordered the Scotchcast 2131B resin from Digikey, and it looks
like you can order the primer from them too. It's a bit expensive though
(~$220 per can), and I'm not sure how much you'll need it... At Saildrone
we just use the 2131B for potting cables, I don't think we use any primer,
and it ends up being really tough stuff. But as Dan said, cleaning with
acetone before potting would probably be good.
The 2131B is kind of annoying since it comes in pouches of 7.5oz, and you
can't really save it after you've cut open the pouch. So it's best to line
up all your casts and do them all at once if you have a few to do.
-justin

On Fri, Jan 17, 2025 at 7:02 AM Daniel Lance via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Sean ,
> I did a quick Google search and found " 3M Scotchcast Electrical Primer
> 5136N" . Is this the product you are looking for ?
> When I made my electrical penetrators ( 20 years ago) I don't believe this
> product was available . The advice given to me at the time by some industry
> professionals was to clean all the components to be cast or over molded
> with acetone .
> Dan Lance
>
> On Thu, Jan 16, 2025 at 5:33 AM Sean Lange via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> *Hi all,*
>> *I was wondering if anyone has used the subconn OM over-mold connectors.
>> I’m using an OM connector to terminate the ends of my ROV tether. I have
>> limited resin casting experience, and I’ve had some trouble sourcing the
>> 5136 Resin Primer Subconn recommends and I was hoping someone might’ve used
>> an alternative.*
>>
>> *- Thanks,*
>> *Sean Lange*
>>
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