Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Bakelite crack repair - what is best epoxy?
#1

Starting on a Philco 48-1401 Boomerang radio/phonograph.  It has one crack on the left side running from the speaker opening to and through the front edge.  I will be able to clamp it side to side, but the crack will remain about 1/16" and will need to be filled.

I'd really like to only do this once, so I'm looking for recommendations for the best epoxy and practice to use.

I plan to finish the repair with a patch underneath using some fiberglass cloth covered with the epoxy.

I'd appreciate your feedback.

73

Bob
de371
#2

JB Weld. I use the 5 minute for short gaps and 30 minute for longer ones.
#3

I always used two part epoxy, the 24 hour cure stuff is stronger, it's also clear, JB Weld is usually grey. I haven't found fiberglass cloth to be necessary for repairing a crack, though it would be with filling a large chip or hole.
Regards
Arran
#4

I'm with Arran, but I use even stronger epoxy with a 72 hour cure. It is sold to knife makers for bonding wooden handles to knife tangs, eliminating the need for fasteners.

Dale H. Cook, GR/HP/Tek Collector, Roanoke/Lynchburg, VA
https://plymouthcolony.net/starcity/radios/
#5

Thanks everyone. I appreciate you sharing your experience and looks like I'll work with the 24 hr two part clear epoxy. The crack is a full break about 4 inches long. The front edge will mate perfectly but there was a loss of bakelite "dust" along the rest of the length which will keep a crack about 1/16" or less. The two part clear should help to fill it in.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM
Testing a speaker and output transformer Trutone A2-G
morzh Short-circuited turns can be considered as a half-dead transformer. But on this case transformer will hot and s...Vlad95 — 11:01 AM
Testing a speaker and output transformer Trutone A2-G
I am not sure how a transformer could be weak. It could be inadequate, but only when you replace the original with somet...morzh — 09:56 AM
Philco model 38 code 121 not receiving signal.
Good news everyone! I think I have found everything I need for rewinding the antenna coil primary. I found some pla...Stormlord5500 — 09:40 AM
Philco Battery-WWII vintage
My younger sister went to SUNY Plattsburg NY, (BS, MS, RN) in the late 1970sabout 10 min from the Northern NY / Canada b...MrFixr55 — 07:59 AM
Philco Battery-WWII vintage
Hello Bob, What Amazing find! Sincerely Richardradiorich — 10:19 PM
Testing a speaker and output transformer Trutone A2-G
Hi Murf, Do this: Monitor between ground and one plate of the rectifier while playing the radio.  Do the same with ...MrFixr55 — 09:51 PM
Philco Battery-WWII vintage
Mike; I take it that Soviet cars did not come equipped with block heaters, hence the hot oil change? Where I lived in...Arran — 08:42 PM
Philco 42-345 Restoration/Repair
The more the better. (Within reasonable limits.) 2-5 times more is no problem in this case.Vlad95 — 03:50 PM
Philco 42-345 Restoration/Repair
Thanks, RodB and Vlad95, I was mainly trying to figure out this capacitor to locate a replacement, Vlad thank you for...osanders0311 — 03:44 PM

[-]
Who's Online
There are currently no members online.

>