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June 2012

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From:
Bob Landman <[log in to unmask]>
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Date:
Fri, 22 Jun 2012 12:29:02 -0400
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McMaster-Carr carries what to me is the equivalent (I have purchased large sheets of the stuff).

See http://www.mcmaster.com/#garolite/=i38d13

They call it Garolite

Bakelite is named for Leo Baekeland who invented the stuff.  Us physics types used a ton of it over the years as it machines easily, does not dull cutting tools. http://en.wikipedia.org/wiki/Leo_Baekeland

Here are collections of items made from the stuff
http://www.amsterdambakelitecollection.com/

http://kaufmann-mercantile.com/bakelite/

A book on its properties
http://pubs.acs.org/doi/abs/10.1021/ie50308a012

A lot more on it from ACS

http://portal.acs.org/portal/acs/corg/content?_nfpb=true&_pageLabel=PP_ARTICLEMAIN&node_id=924&content_id=WPCP_007586&use_sec=true&sec_url_var=region1&__uuid=82c1c58c-ec86-4aab-afc2-2949d2bc9b01

Bob Landman
H&L instruments, LLC

  _____  

From: Mike Fenner [mailto:[log in to unmask]]
To: [log in to unmask]
Sent: Fri, 22 Jun 2012 06:41:04 -0500
Subject: Re: [TN] DH 99 Bakelite laminate

Bakelite is/was a brand name for one of the earliest synthetic polymers,
  it's a phenolic resin. 
  It's likely that what is meant by 'Bakelite laminate' is paper phenolic,
  Bakelite being a brand name that tended to be used as a generic term. (like
  Gas , Xerox, Hoover etc) 
  Early PCBS were made from layers of paper impregnated with phenolic resin,
  and was replaced by glass epoxy years ago. It lingered in mass market stuff
  into at least the late 1970s as it was cheap. FR2 would likely be a
  functional equivalent, a proper PCB guy would probably know, but you might
  need to find an old timer to understand the question. Or try googling of
  course! 
  
  
  
  Regards
  
  
  Mike 
  
  
   
  
  
  -----Original Message-----
  From: TechNet [mailto:[log in to unmask]] On Behalf Of Roger M Unwin
  Sent: Tuesday, June 19, 2012 3:38 PM
  To: [log in to unmask]
  Subject: [TN] DH 99 Bakelite laminate
  
  Hi TechNet,
  
  Does anyone know if DH 99 Bakelite laminate is still available, or what
  a modern equivalent might be ? 
  
  The drg that specifies it is dated 1973, and is for an Antenna of some
  type.
  
  
  
  Many Thanks
  -- 
  Roger M Unwin
  P+M Services (R) Ltd     Tel :  01706 815212    Fax : 01706 818636
  http://www.p-m-services.co.uk
  
  
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