I think the idea would be that a semi abrasive surface like the inside of an enclosure could be made more abrasive when coated in kapton adhesive and pulverized kapton. Kapton is much more easily worn down so maybe having none is better
I’m not sure either way. I need kapton on P groups quite often to keep the fishpaper on there so I hope not, although if im honest if there is a large amount of rubbing going on I don’t think anything will stop it eventually wearing down, i’ve seen epoxy fibreglass board worn through before…
Haha yeah the inside surface of Alan’s enclosures are pretty rough.
You dont need to quantify or qualify any of these variables if you can do side-by-side comparison testing in the same environment. Then it’s just up to which lasts longer
For sure, the example I gave has several things that contributed to the accelerated abrasion.
I’m simply wondering if the abrasion would have taken longer to tear through the pack if the fish paper hadn’t been covered with sticky adhesive.
I’m not talking about the layer of robust tape, I’m talking about the layer of gummy adhesive between the tape and the surface of the fish paper. I’m speculating that the adhesive could cause the fishpaper to break down quicker, because now the surface of the fish paper and whatever is pressing into the pack have an adhesive layer to bond them together and then tear fibers off the fishpaper.
One sec, I think I can explain my point better with a video.
Yes, I’m in the same boat. I really hope I am totally wrong about this. I’m just worried that I might be right.
This is a dramatization of my point. I understand that there are a large number of ways in which this situation does not represent what happens inside a PEV. Now with that out of the way;
What I’m showing here in the video is that when you have a smooth thing rubbing across fishpaper (in this case, another piece of fishpaper) then they glide easily. When you add a layer of adhesive into the mix, it adheres to the surface of the fish paper and tears up fibers from it, causing it to break down much quicker.
Speaking of FR4 protective sheets, does anyone have some Amazon/AliExpress/Alibaba links for this stuff? I have a couple Alibaba vendors who keep emailing me wanting to sell me several hundred pounds of it, but I just want to order a small amount to play around with. The only stuff I have been able to find on Amazon are like 1mm thick and totally rigid. I want some of the 0.2mm stuff that’s flexible to test against fish paper.
Yea that’s where I learned about the knife maker thing too
There are a bunch of other links in the description too, we can probably get away with shittier G10 because a bit of bending doesn’t matter as much. But for something quicker and local I think those prices are pretty good
