Some time ago a bought somewhere a superb looking quality copper clad board, almost fully transparent and quite shiny and greyish, like a smoked glass. Problem is, I don't remember where and it was probably a random purchase. Any idea what that could be? I can post a photo later when I get home.
I have got both types here in stock. The yellow one is coated with photoresist and the nice one is plain copper. I have never seen the nice type with photoresist though. One strange thing is both materials come from the same supplier with the same spec, apart from the photoresist of course.
Wouldn't happen to know where to get the old, brown paper/phenolic copper clad board, would you?
se
Can you send me some photos, sizes and prices with shipping to Belgium please, for "nice" ones 🙂
zdravke(append google mail)
zdravke(append google mail)
Sorry not seen that for a while and doesn't it go all brittle after a decade or two? The closest I've seen to it is a paper composite copper clad board, which drills and cuts extremely nicely.
Can't say for sure other than I have some of it in some 40+ year old stuff I have here and it doesn't seem to be terribly brittle.
Know where I can find more details on that?
Thanks!
se
hello.
i think conrad in germany has paper composit copper clad boards (hartpapier,hp-platine ,hp).
search for hartpapier - platinen or so..........
sorry it is only in german........datasheet:
http://www.produktinfo.conrad.com/datenblaetter/525000-549999/528382-da-01-de-Hartpapier_Platten.pdf
greetings
i think conrad in germany has paper composit copper clad boards (hartpapier,hp-platine ,hp).
search for hartpapier - platinen or so..........
sorry it is only in german........datasheet:
http://www.produktinfo.conrad.com/datenblaetter/525000-549999/528382-da-01-de-Hartpapier_Platten.pdf
greetings
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Ah. Sounds like what Vector sells in pre-sensitized sheets. However they only offer it in 1/32" thickness. Too thin for my purposes.
Thanks!
se
eBay seller identified my "nice" pcbs as "non-UV blocking laminate". I think that mine was covered with photo resist.
yes,the answer was adressed to steve eddy's question...........
hallo...........die antwort war für steve eddy gedacht...........
grüsse
hallo...........die antwort war für steve eddy gedacht...........
grüsse
SE
I would look for manufacturers suppliers of CEM PCB's. Not used as much these days, as FR4 boards can be purchased for the same price, with much better proerties.
CEM-1 (CEM1)- composite for PCB's - Order Online
The two boards photographed will be FR4 based, this comes in different qualities and weave patterns, so bare boards will differ in apearance, from cheap and rough looking upwards.
I would look for manufacturers suppliers of CEM PCB's. Not used as much these days, as FR4 boards can be purchased for the same price, with much better proerties.
CEM-1 (CEM1)- composite for PCB's - Order Online
The two boards photographed will be FR4 based, this comes in different qualities and weave patterns, so bare boards will differ in apearance, from cheap and rough looking upwards.
same thing I noticed before that it has something to do with UV.
the greenish stuff glows brightly in UV light while the white stuff stays dark.
re. Paper Phenolic; it's available here in single sided boards. all single sided boards here use that. all double sided boards are in FR4. I couldn't get FR4 in single sided. 😕 if I need single sided FR4, I peel off the other side. such a waste.
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