Author Topic: Removing sticker adhesive from thermoplastic  (Read 4703 times)

Offline Sargeguy

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Removing sticker adhesive from thermoplastic
« on: January 17, 2009, 04:20:12 PM »
I just received a matching date 1945 302 in the mail today.  The housing is in great shape except for a few dings.  It is the only plastic 302 I have seen where the housing fits back onto the base without heating or plastci removal.  The phone was dirty inside and out, and I did find a dead brown recluse spider inside, but it cleaned up pretty easily.  The only cleaning issue is that there is a large sticker between the ears that I removed when I steam-cleaned it, but the adhesive remains.  What should I use to remove it that won't damage the thermoplastic housing?
Greg Sargeant
Providence, RI
TCI /ATCA #4409

Offline McHeath

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Re: Removing sticker adhesive from thermoplastic
« Reply #1 on: January 17, 2009, 04:52:20 PM »
Hmm, just send it to me and I'll take care of it.  May take be a few decades however, so be patient.   ;)

Offline Sargeguy

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Re: Removing sticker adhesive from thermoplastic
« Reply #2 on: January 17, 2009, 04:56:27 PM »
Give me your address and I'll send you the spider.  I think its dead but maybe its only hibernating. :-*
Greg Sargeant
Providence, RI
TCI /ATCA #4409

Offline benhutcherson

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Re: Removing sticker adhesive from thermoplastic
« Reply #3 on: January 17, 2009, 05:24:15 PM »
Most any organic solvent should work, however you obviously want one that won't dissolve the case.

I generally spray some CRC QD Electronics Cleaner on a rag and wipe away, which does a nice, safe job of getting rid of residue pretty quickly.

A cheaper alternative is Ronsonal lighter fluid, which is also safe for the types of plastics we're dealing with.

Offline Dan/Panther

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Re: Removing sticker adhesive from thermoplastic
« Reply #4 on: January 17, 2009, 05:33:14 PM »
Ben;
Isn't lighter fluid, just Naptha ?
D/P

The More People I meet, The More I Love, and MISS My Dog.  Dan Robinson

Offline benhutcherson

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Re: Removing sticker adhesive from thermoplastic
« Reply #5 on: January 17, 2009, 05:35:44 PM »
Dan,
Yes-Naptha, petroleum ether, benzine-whatever you want to call it. It's a mixture of saturated C5 and C6 hydrocarbons.

The CRC cleaner I mentioned is actually a mixture of naptha and methanol in a spray can.

Offline Sargeguy

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Re: Removing sticker adhesive from thermoplastic
« Reply #6 on: January 17, 2009, 06:07:01 PM »
Thanks, I'll try the conductor cleaner...and some Raid
« Last Edit: January 17, 2009, 06:09:27 PM by Sargeguy »
Greg Sargeant
Providence, RI
TCI /ATCA #4409

Offline Sargeguy

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Re: Removing sticker adhesive from thermoplastic
« Reply #7 on: January 17, 2009, 06:39:32 PM »
Being as it is WWII era phone there are a few interesting features, namely the steel and zinc parts.  These include steel gongs (painted black) steel fingerwheel), zinc dial card retainer, and the dial card ring is made of a silver colored metal rather than brass or tin. 

The dates from 1945 are pretty interesting:

II-45 (Dial Plate)-War in Europe ends
6-15-45 (Housing): Battle of Okinawa rages
8-6-45 (Dial and Base Plate):  Enola Gay Drops "Little Boy" on Hiroshima
8-7-45 (Ringer):  President Truman announces the bombing of Hiroshima with the atomic bomb
8-11-45 (Network): Allies accept Japan's offer of unconditional surrender, ending WWII

It also has a cool dial card: Long Distance Dial 211, Information Dial 411, Repair Service Dial 611

Greg Sargeant
Providence, RI
TCI /ATCA #4409

HobieSport

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Re: Removing sticker adhesive from thermoplastic
« Reply #8 on: January 17, 2009, 06:50:07 PM »
Very interesting historical phone from the last days of WWll.  Thanks for matching the components' dates with the history.  Quite the time capsule you have there! But now you have me wondering what the removed sticker was! ;D

Offline Sargeguy

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Re: Removing sticker adhesive from thermoplastic
« Reply #9 on: January 17, 2009, 07:25:50 PM »
It was McArthur's private line ;D
Greg Sargeant
Providence, RI
TCI /ATCA #4409

Offline McHeath

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Re: Removing sticker adhesive from thermoplastic
« Reply #10 on: January 18, 2009, 11:15:34 PM »
Gee what a cool phone, love those historical tie ins.  How about some pics?

And I think you can send the "dead" spider to D/P, he's our official bug in a phone go to guy.
 :D

Offline Sargeguy

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Re: Removing sticker adhesive from thermoplastic
« Reply #11 on: January 19, 2009, 01:40:01 AM »
Well since you asked, I just happen to have a couple "before" pictures: ::)

Greg Sargeant
Providence, RI
TCI /ATCA #4409

Offline Dennis Markham

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Re: Removing sticker adhesive from thermoplastic
« Reply #12 on: January 19, 2009, 08:54:58 AM »
That is a very nice looking phone.  I really like the dial card.  I have found that just soaking the plastic in the warm soapy water will often soften that sticker enough to scrape it off with a finger nail.  Sometimes it requires more soaking once the paper layer is remove and some of the adhesive remains.  Usually just rubbing against it with the thick part of my thumb while still in the water will get 99% of it off...then Novus will get off the remaining adhesive.

Offline mienaichizu

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Re: Removing sticker adhesive from thermoplastic
« Reply #13 on: January 19, 2009, 09:37:43 AM »
very coincidental that those dates matches our history

one tip too, you can apply WD 40 over the adhesive and leave it for 10-15 minutes With this, the adhesive will soften up that you may scrape it with your own fingernails.

Offline Sargeguy

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Re: Removing sticker adhesive from thermoplastic
« Reply #14 on: January 19, 2009, 11:22:00 AM »
Thanks, the glue was really annoying-it kept smudging around but would not wipe off completely.  I love that dial card, it was why I paid $34 ($22 + S&H ) rather than my usual max of $30 for plastic 302s.  I am bummed that the dial plate is badly worn and will need replacement or an overlay.  The feet are shot as well, but that's a cheap fix.  I will post pics of the finished product.
Greg Sargeant
Providence, RI
TCI /ATCA #4409