If anyone knows the answer to this one, I say it is not off topic. It is not Elecraft, but it sure is ham radio. I have had some mixed results from heating the outer tube with a propane torch, but it is by no means fool proof. The only fool proof method that I know is to treat the joint before assembly and take it apart every couple of years. I use to use grease mixed with graphite powder and that worked very well, but our environmental friends have made it so that finding graphite powder is difficult to impossible. There are various products available now at high prices to do the job. After the fact is really tough and sometimes a hack saw and a splice may be in order. These are not great answers, but they are the best I can do after 50 years of fighting the problem. Willis 'Cookie' Cooke K5EWJ
________________________________ From: 2Cents <[email protected]> To: [email protected] Sent: Tue, October 19, 2010 11:38:28 AM Subject: [Elecraft] OT aluminum oxide Does anyone have experience freeing antenna parts that have seized with aluminum oxide? I'm trying to free up the sections of a 32' boom for transport. The sections are swaged 6" and penetrating oil doesn't seem to be cutting it. Please reply direct so as not to clutter up the reflector with a non-Elecraft topic. Thanks, Chuck Teague NN7U ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

