Wither S.R.B.P.

Phenolic is still available but you'd have to go to Asia. Which you have to do anyhow for high volume consumer.

I just discovered SRBP is now officially called FR-2 - is that right?

Cheers

Ian

Yup:

If the domestic shops tell you that something is no longer available that is not necessarily true :-)

They just call it paper boards, rather than glass boards. Yes, paper boards are still available for around 1/3 the price but for single sided only.

Huh... That's gained my interest since I trash lots of prototype pcbs..

So, which PCB manufacturers still do them?

Cheers

Ian

My 'domestic' shop buys from China anyhow.

Cheers

Ian

You'd have to find them in places like China:

http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:

If I recall, that's the style that was good for absorbing moister and developing carbon tracks. Ofcourse, one shouldn't have electronics around moister or use that for HV apps.! :)

We get them in China directly. We recently made 5000 3"x1" paper PCB. It costs around 15 cents each. But the costs are mixed in with other assembly and service costs, so, it's hard to give the exact number.

By the way, we tell them it's domestic in China. So, we don't pay export prices.

http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:

Oh sure, nice, why not a registered name? why dot IP ?

I wouldn't be clicking on that. sounds like some one's dynamic IP sitting in ones basement!

http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:

Well it turns out it is the schenzen K-better electrical co ltd which, if you do a google search comes uip in a lot of trade directories that want money for membership or introductions but no direct link to a web site. Strange.

Cheers

Ian

http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:

Belay that, I just found their web page

but they don't make single sided PCBS out of FR-2, only FR-4 and aluminium, so I ask again, who actually makes PCBs with FR-2??

Cheers

Ian

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Again, you are thinking externally. Many business in China are done with phone and in-person, not with English web sites. This trading company (kbt.net.cn) in downtown Shenzhen (Fatian district) is exported oriented. You have to get to the real factories.

Duh??? Wtf does that mean??

I asked who made SRBP PCBs, you pointed to a web site that does not.

Many business in China are done

Duh?? Stop speaking in riddles.

Cheers

Ian

Cheers

Ian

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That means you don't understand the politics and business of dealing in China.

Someone else gave you the link out of English Speaking Google, not me.

It's unspoken rule that if you are not local or rich enough (ie. multinational corporation). It's probably not worth doing business with. Most companies using paper boards are big users. They don't just order boards over the net.

http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:

You have to contact them, as Linnix said Chinese companies don't rely on web sites much. But the potential order has to be large.

As for web presence, for example, a company that runs one of my designs in Shenzen does not even have their own web site (last time I looked) but has just a shared link on Globalsources. It's quite normal there.

http://74.125.155.132/search?q=cache:Ym-VuoeUyKwJ:

Ok, here ya go, a little web search brought it up:

One the page bottom they say, quote "In 1992, we formed our Single-sided Division to serve a variety of needs; specialists in paper phenolic base material keep ourselves active in the demanding market place."

Now that company ought do it. They are in Hong Kong but you can give their guys here in California a ring:

Is that similar to the (inexpensive) phenolic that RS sells?