I bought a roll direct from 3M a few weeks back. Was well over $40. It would also appear they don't call it kapton, but instead thermosetting adhesive.
Checkout 3M 5413 AMBER. Larger rolls can cost upwards of $300, not cheap stuff.
Checkout 3M 5413 AMBER. Larger rolls can cost upwards of $300, not cheap stuff.
https://www.digikey.com/short/zrz730
Also, even if you've not used them before or have no need of kapton tape, take a look because their parametric search is one of the greatest I've seen, and makes Amazon's Choice system seem awful in comparison.
I'm super curious where you live, approximately! I'm in Saskatchewan, and Digi-Key reliably gets me parts next-day, even when shipped DDP (they take care of all of the duty for me). For crossing a border, that's pretty incredible!
We have never seen a single issue with pricing not as advertised at small quantities, or a shipping mistake not directly attributable to the carrier.
Mouser has performed similarly well but is (and has always been) significantly worse with their cutoff. Again, they're nominally 8pm CT but 6 or 6:30 is more realistic if you're counting on it being here the very next day.
Both are amazing if you're used to crappier distributors, but you do pay for it....
Ah. No, we haven't either.
The issue is that we have caught DigiKey charging different prices based upon login status and cookie status on low volume order items.
This would be fine if they were charging the returning customer less, but we caught them charging more. That made us very unhappy.
Maybe it was a bug. Maybe it was an A/B test. However, if I have to scrutinize my order cart, we're done.
We still use DigiKey. But we have significantly reduced our volume through them and we watch them like a hawk.
1. UPS do not leave packages at door in all countries
2. Some people live in apartments with nowhere safe for packages to be left
3. In some cities/countries in-person delivery does not exist at all. Only "collect at post office"
Food for consideration: since 3M is a ECIA member manufacturer[1], if the source isn't direct from the cow's mouth or one of their authorized distributors, it's prima facie suspect in my eyes and cannot be trusted on anything with skin in the game.
But nobody knows the generic name (the acronym isn't even in the wikipedia article) so fly by night vendors use 'kapton' wherever they can get away with it.
(and as with teflon, iirc they sell other polymers under the name of kapton too)