Exterior light sealant

[Bizywk]

What sealant do you folks use for silicone tubed LED strips?

Eight years ago in 2013, as an experiment, we permanently installed led strip lighting under the eaves.  To be more specific, I used small screws to install an aluminum strip (same width as the LED strip) backed by a plastic washer to give me a very small gap before the siding.  We then wire tied the strip with its factory rectangular silicone tubing to the aluminum.   In my neighborhood there are rules on how long you can have your lights up, but this setup is nearly invisible so even the association has no issues with it.   This setup and material selection worked better than I could have imagined and is still very reliable and working to this day.

 

My problem is that the cheap wire ties I used are beginning to succumb to UV damage and just started breaking in the recent spring winds.  I have to rent a boom lift to make the repairs due to my unwillingness to scale the complicated 2nd story roof angles, so I figured that while I'm at it, I'd just replace the eaves strips too while I'm there and use them for parts or in new ground props so that maintenance would be easier for if/when they finally die.

I'm looking at ways to further improve on our led strip to supply cable connections.   At the junction point of our cut ends, we used replacement silicone box ends (like in the link below) and a normal RTV sealant and then covered it with cheap 2:1 shrink tubing.  This time we're using color matched marine grade 3:1 dual wall shrink tubing with adhesive, and looking at different sealants for the silicone ends.   Currently leaning towards 3M Marine grade Fast Cure 5200.  

Has anyone ever used that sealant?   What sealant do you folks use?                                                  See below for my initial adhesive selections.

Thanks! 

 

Bizywk

 

Example of LED tube ends:   https://www.amazon.com/gp/product/B08R3Z5SD5/ref=ox_sc_act_title_1?smid=AKDU4YKFXVL4S&psc=1

Sealant Specs: https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Marine-Adhesive-Sealant-5200-Fast-Cure/?N=5002385+3293241048&rt=rud

Alternatives

https://www.amazon.com/Smooth-Sil-poxy-Rubber-Silicone-Adhesive/dp/B00NGZHGFI/ref=pd_bxgy_2/142-7541529-8738537?_encoding=UTF8&pd_rd_i=B00NGZHGFI&pd_rd_r=5aba7376-b11a-4de0-b44b-f78725d6d312&pd_rd_w=xeK48&pd_rd_wg=Of7jP&pf_rd_p=f325d01c-4658-4593-be83-3e12ca663f0e&pf_rd_r=NBYE6NNWW8VT2W20A5QX&psc=1&refRID=NBYE6NNWW8VT2W20A5QX

https://www.amazon.com/J-B-Weld-31310-All-Purpose-Silicone/dp/B00ID8EDKY/ref=pd_sbs_3?pd_rd_w=ecCdI&pf_rd_p=527ea27c-adf6-4b67-9c5f-265eb29e0622&pf_rd_r=6TC25KQJ37MD01VD0995&pd_rd_r=0f6373e9-c7ac-4e9c-a151-02301039ecd5&pd_rd_wg=ZyHyO&pd_rd_i=B00ID8EDKY&psc=1

 

[Orville]

For sealing any electrical ends/terminations of any exposed wire, Clear Flex Seal and the Clear Flex Seal tape may be a better alternative to your other ties that are failing.   Both are weatherproof and waterproof.  I use black liquid flex seal on my wire terminations/exposed end of wire.  best stuff I've found, cures within 24-48 hours to a nice rubber, water-tight seal.  Haven't had a chance to get or use the Flex Tape, it's a bit costly {IMO} for the amount you get.  But if it works as well as the liquid Flex Seal, for smaller areas or use, might be worth it.