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Good Vibrations? / locking compounds

Leigh Turner All Messages By This Member #15714 Good fit-for-purpose cautionary advice here Alan.... Leigh VK5LT toggle quoted message Show quoted text -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Alan Sent: Monday, 3 January 2022 10:50 AM To: [email protected] Subject: Re: [loopantennas] Good Vibrations? I would NEVER USE LOCKING COMPOUND ON PLASTICS. Many locking compounds can destroy plastic parts over time, they are formulated for locking metal part not plastics. Same goes for some greases. One former employee used locking compound on plastic nuts, cost ?35,000 to replace the parts. One Italian manufacturer used a grease to ease driving screws into plastic pillars. After a year the pillars disintegrated and cost the manufacturer a lot of money. 73, Alan G8LCO.
Fred Moore All Messages By This Member #15722 Good?morning all.?? I have been following all the comments about vibrations on the antenna causing mounting hardware to loosen.? I have used the following type of hardware for years at commercial sites and can't remember where we have had any hardware loosen up for whatever?reasons.? The attached link below uses one nut and one split ring washer at every point where any tightening is to happen for mounting.? All the big boys, 2 way communication, cell site antennas etc use this type of hardware and once it is up it is never touched again until it has to come down or be moved.? No criticisms intended, just my opinion. Fred - N4CLA toggle quoted message Show quoted text On Sun, Jan 2, 2022 at 7:45 PM Leigh Turner <invertech1@...> wrote: Good fit-for-purpose cautionary advice here Alan.... Leigh VK5LT -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Alan Sent: Monday, 3 January 2022 10:50 AM To: [email protected] Subject: Re: [loopantennas] Good Vibrations? I would NEVER USE LOCKING COMPOUND ON PLASTICS. Many locking compounds can destroy plastic parts over time, they are formulated for locking metal part not plastics.? Same goes for some greases. One former employee used locking compound on plastic nuts, cost ?35,000 to replace the parts. One Italian manufacturer used a grease to ease driving screws into plastic pillars. After a year the pillars disintegrated and cost the manufacturer a lot of money. 73, Alan G8LCO.
kevin asato All Messages By This Member #15744 I have used my daughters finger nail polish as thread locker. Yes it does contain acetone but if used sparingly and on the end of the screw and nut, should not cause a plastic meltdown event. It worked so well, I now have a nail polish collection of my own! 73, Kevin kc6pob On Sunday, January 2, 2022, 10:12:29 PM PST, Fred Moore <n40cla@...> wrote: Good?morning all.?? I have been following all the comments about vibrations on the antenna causing mounting hardware to loosen.? I have used the following type of hardware for years at commercial sites and can't remember where we have had any hardware loosen up for whatever?reasons.? The attached link below uses one nut and one split ring washer at every point where any tightening is to happen for mounting.? All the big boys, 2 way communication, cell site antennas etc use this type of hardware and once it is up it is never touched again until it has to come down or be moved.? No criticisms intended, just my opinion. Fred - N4CLA toggle quoted message Show quoted text On Sun, Jan 2, 2022 at 7:45 PM Leigh Turner <invertech1@...> wrote: Good fit-for-purpose cautionary advice here Alan.... Leigh VK5LT -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Alan Sent: Monday, 3 January 2022 10:50 AM To: [email protected] Subject: Re: [loopantennas] Good Vibrations? I would NEVER USE LOCKING COMPOUND ON PLASTICS. Many locking compounds can destroy plastic parts over time, they are formulated for locking metal part not plastics.? Same goes for some greases. One former employee used locking compound on plastic nuts, cost ?35,000 to replace the parts. One Italian manufacturer used a grease to ease driving screws into plastic pillars. After a year the pillars disintegrated and cost the manufacturer a lot of money. 73, Alan G8LCO.
Andrew Russell All Messages By This Member #15752 开云体育 I have seen nail polish used before and well. The other one is “glue”. Super glue is not so strong under shear stress as strain so things can still be undone. Andrew VK5CV. ? Sent from for Windows ? toggle quoted message Show quoted text From: kevin asato via groups.io Sent: Tuesday, 4 January 2022 10:34 AM To: [email protected] Subject: Re: [loopantennas] Good Vibrations? / locking compounds ? I have used my daughters finger nail polish as thread locker. Yes it does contain acetone but if used sparingly and on the end of the screw and nut, should not cause a plastic meltdown event. It worked so well, I now have a nail polish collection of my own! 73, Kevin kc6pob On Sunday, January 2, 2022, 10:12:29 PM PST, Fred Moore <n40cla@...> wrote: ? ? Good?morning all.?? ? I have been following all the comments about vibrations on the antenna causing mounting hardware to loosen.? I have used the following type of hardware for years at commercial sites and can't remember where we have had any hardware loosen up for whatever?reasons.? The attached link below uses one nut and one split ring washer at every point where any tightening is to happen for mounting.? All the big boys, 2 way communication, cell site antennas etc use this type of hardware and once it is up it is never touched again until it has to come down or be moved.? No criticisms intended, just my opinion. ? ? Fred - N4CLA ? On Sun, Jan 2, 2022 at 7:45 PM Leigh Turner <invertech1@...> wrote: Good fit-for-purpose cautionary advice here Alan.... Leigh VK5LT -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Alan Sent: Monday, 3 January 2022 10:50 AM To: [email protected] Subject: Re: [loopantennas] Good Vibrations? I would NEVER USE LOCKING COMPOUND ON PLASTICS. Many locking compounds can destroy plastic parts over time, they are formulated for locking metal part not plastics.? Same goes for some greases. One former employee used locking compound on plastic nuts, cost ?35,000 to replace the parts. One Italian manufacturer used a grease to ease driving screws into plastic pillars. After a year the pillars disintegrated and cost the manufacturer a lot of money. 73, Alan G8LCO. ?

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