Jim Gregory Posted September 9, 2019 Share Posted September 9, 2019 I have a 5” crack in my 402 that’s in need of repair. Starts at the top about 12” from the corner and extends left 5” at 120 degrees. I’m considering an epoxy repair and asking here for advice on best type to use based on experience. Thanks Jim Quote Link to comment Share on other sites More sharing options...
Chris A Posted September 9, 2019 Share Posted September 9, 2019 See @mikebse2a3 Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 9, 2019 Author Share Posted September 9, 2019 Thank You Chris Quote Link to comment Share on other sites More sharing options...
Dave A Posted September 9, 2019 Share Posted September 9, 2019 Did you break it or buy it cheap? Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 9, 2019 Author Share Posted September 9, 2019 34 minutes ago, Dave A said: Did you break it or buy it cheap? A little of both. Lol Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted September 9, 2019 Share Posted September 9, 2019 Which generation of the K402 (there are 3 generations) do you have and do you have a picture of the crack..? @rigma @ClaudeJ1 If I remember correctly rigma and Claude both did some repairs to the 1st generation type (if that is what you have) so maybe they can give some advice on how they repaired some they had. miketn Quote Link to comment Share on other sites More sharing options...
babadono Posted September 9, 2019 Share Posted September 9, 2019 @DMH has (had?) a first gen pair that partially melted(I think that is what he said happened to them) . Perhaps he has some insight into repair of these horns. Quote Link to comment Share on other sites More sharing options...
DMH Posted September 10, 2019 Share Posted September 10, 2019 Jim Gregory can you post a photo or two? And are your horns first or second generation versions? I've repaired and repainted both types with great success. There are quite a few pre-existing body shop techniques that work great to repair or refinish these 402 horns. About my 1st gens melting, maybe melting isn't the best choice of word, warping would be closer. I suppose if you set the things in the sun on a 90 degree day they'd literally melt. Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 1 hour ago, DMH said: Jim Gregory can you post a photo or two? And are your horns first or second generation versions? I've repaired and repainted both types with great success Thank you DMH. I work nights so will not be back home till around 4am est. I will take pictures and send them tomorrow. 1 Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 7 hours ago, DMH said: Jim Gregory can you post a photo or two? And are your horns first or second generation versions? Looked up some old posts and this cracked 402 is from the guy in Orlando, FL (eBay from Jan 2018) which was identified as 1st generation. The one that will warp if left in the sun in 90 degree temperatures. Quote Link to comment Share on other sites More sharing options...
Dave A Posted September 10, 2019 Share Posted September 10, 2019 1 minute ago, Jim Gregory said: Looked up some old posts and this cracked 402 is from the guy in Orlando, FL (eBay from Jan 2018) which was identified as 1st generation. The one that will warp if left in the sun in 90 degree temperatures. Ouch! Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 Measured it and it is 6” Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 18 hours ago, DMH said: Jim Gregory can you post a photo or two? Also have cracks lines below the bigger crack. Quote Link to comment Share on other sites More sharing options...
babadono Posted September 10, 2019 Share Posted September 10, 2019 18 minutes ago, Jim Gregory said: Measured it and it is 6” That's what she is hoping 2 Quote Link to comment Share on other sites More sharing options...
Moderators dtel Posted September 10, 2019 Moderators Share Posted September 10, 2019 Don't know how but I would patch somehow on the back (maby epoxy with something to reinforce it) and just use something to remove/smooth the crack on the front and maby paint. i wouldn't want to add any change of shape to the front side in any way. Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 19 minutes ago, babadono said: That's what she is hoping Lol. At my age it’s like playing billiards with rope. 2 Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 4 minutes ago, dtel said: Don't know how but I would patch somehow on the back (maby epoxy with something to reinforce it) and just use something to remove/smooth the crack on the front and maby paint. i wouldn't want to add any change of shape to the front side in any way. Yes Sir. Thinking it through logically, that was my “inexperienced” thought as well. Quote Link to comment Share on other sites More sharing options...
Jim Gregory Posted September 10, 2019 Author Share Posted September 10, 2019 The small cracks, I do not think have enough separation to be able to get adhesive material into, but a patch on the back may serve to keep the cracks from extending further. I have heard in other applications that if you drill a small hole at the end of the crack that it will also stop the crack from extending any further. Any advice is appreciated. I know this horn is old and worn but I think she deserves to continue to sing. 😊 Quote Link to comment Share on other sites More sharing options...
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