HP-67 Shiny Spot on Face



#7

I recently got an HP-67. One cosmetic problem it has is a shiny spot on the front face between the "E" key and the "SST" key. A couple pictures are here:

https://picasaweb.google.com/lh/photo/C-RthKo3OFAsPESnjXWb3DJFQUrqvbY7ReWm5TggMMM?feat=directlink

https://picasaweb.google.com/lh/photo/RtH8bbztg4XbOkKQf2DUHTJFQUrqvbY7ReWm5TggMMM?feat=directlink

Has some outer finish worn off in this area? Is there any way to restore the matte finish to this area?

Edited: 3 Aug 2012, 5:20 p.m. after one or more responses were posted


#8

Hello Colin, may you format properly the liks to the pictures in your post? thank you


#9

Quote:
may you format properly the liks to the pictures in your post? thank you

Does this work?


#10

Thanks, works great!

#11

Some possible solutions: http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv019.cgi?read=160724#160724

Search the archives for more posts from Geoff on classic restoration. Tons of good material there. Someday, it might even become a book ;-)


#12

Quote:
Someday, it might even become a book ;-)

Geoff, give us a IBAN for the reservation...what's about the last chapter?
I'll give you the GPS point of my home, drop me a prewiev please when you fly on this area :)


Edited: 4 Aug 2012, 6:43 a.m.

#13

Thanks for the pointer! I was not using the right search terms.

Looks like I may have made it worse by using 409 :(

At least the label did not come off. I'll try spraying with matte lacquer once I have it apart to fix the card reader.


#14

Quote:
...Looks like I may have made it worse by using 409 :(

Without a doubt. You're lucky the white lettering didn't melt away.

Check out the ingredients: http://www.biosci.ohio-state.edu/~safety/MSDS/FORMULA%20409%20CLEANER.htm

#15

Here are a couple pictures of the face after disassembling, cleaning and spraying with Matte Clear Lacquer paint. Not perfect, but better!

Also got the card reader working while apart.
Thanks for help!


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