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At 12:48 01 November 2015, Andrzej Kobus wrote:
On Sunday, November 1, 2015 at 1:10:20 AM UTC-5, bumper wrote: On Saturday, October 31, 2015 at 12:32:19 PM UTC-7, w= Note that th= e antenna base is flat, and for mounting on most modern gliders will need t= o be mounted temporarily with cling wrap or other release agent so base gap= s can be caulked with white silicone* or white epoxy putty (A-B, kind used = for pool/boat repair), then removed and re-installed. Hole for coax fitting= also slightly enlarged to facilitate break-away function with minimal risk= of damage. =20 *silicone caulk smooths in nicely with wet finger. Bumper, silicone is something you do not want to use on a glider for this p= urpose. If you ever need repainting or repair, it is next to impossible to = get proper paint adhesion to an area where silicone was previously applied.= Silicone is next to impossible to remove completely. 3M has multiple polyu= rethane based product that are much more expensive but do not cause this pr= oblem and produce equal or better results. Andrzej I think that the use of silicone calk in this way should be fine, the original poster said to cover the fuselage with cling wrap (cling film in the UK) or similar during the application, the calk would only be in contact with the glider once it was set, this should not cause the kind of problems you can get with silicone polish or grease. Ben. NB it would probably be better to use electronic grade sealant such as Dow Corning 744 as the household / bathroom types contain acetic acid and can corrode any metal parts. |
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