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hull:porthole [22/01/2021 16:47] leosha создано |
hull:porthole [22/01/2021 20:17] (текущий) leosha |
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===== Замена иллюминаторов - 2 ===== | ===== Замена иллюминаторов - 2 ===== | ||
- | Авто текста: | + | Оригинальный текст был в закрытой группе на FB, автор текста: |
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- | The inside edges of the acrylic windows were painted with Krylon Fusion matte black -- an acrylic-based plastic bonding paint -- to reduce UV damage to the underlying tape and sealant, and also make the windows more aesthetically pleasing. | + | ---- |
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+ | The inside edges of the acrylic windows were painted with Krylon Fusion matte black -- an acrylic-based plastic bonding paint -- to reduce UV damage to the underlying tape and sealant, and also make the windows more aesthetically pleasing.\\ | ||
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- | Pealing off the protective paper after painting, and just prior to installing. Leave it on as long as possible, as acrylic scratches relatively easily. | + | Pealing off the protective paper after painting, and just prior to installing. Leave it on as long as possible, as acrylic scratches relatively easily.\\ |
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- | After sending the window edges, and cleaning with mineral spirits, I applied the 3M VHB tape along the perimeter of the window. | + | After sending the window edges, and cleaning with mineral spirits, I applied the 3M VHB tape along the perimeter of the window.\\ |
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This is the tricky part. The method I used was to pull the red protective film on the VHB tape just enough that I had a tab I could pull from between the window and the tape. I then placed the window carefully and supported it with blue painters tape (just so it was hanging there, in roughly the right position). | This is the tricky part. The method I used was to pull the red protective film on the VHB tape just enough that I had a tab I could pull from between the window and the tape. I then placed the window carefully and supported it with blue painters tape (just so it was hanging there, in roughly the right position). | ||
The tricky part is pulling the red film out from between the window and tape, without it breaking. If it breaks, you have a problem, as VHB tape is tenacious, and is basically a permanent bond. While pulling the red film out, I gently pressed along the perimeter. When the red film was completely removed, I pressed very hard all along the perimeter. | The tricky part is pulling the red film out from between the window and tape, without it breaking. If it breaks, you have a problem, as VHB tape is tenacious, and is basically a permanent bond. While pulling the red film out, I gently pressed along the perimeter. When the red film was completely removed, I pressed very hard all along the perimeter. | ||
- | For the big windows, I had to get a neighbor to come over and help, as the hull would push it enough that the window and and tape weren' | + | For the big windows, I had to get a neighbor to come over and help, as the hull would push it enough that the window and and tape weren' |
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- | Once the windows were firmly held in place with the VHB tape, I carefully masked out about 1/4" from the perimeter of the window so that I would have a nice edge after the sealant was applied. | + | Once the windows were firmly held in place with the VHB tape, I carefully masked out about 1/4" from the perimeter of the window so that I would have a nice edge after the sealant was applied.\\ |
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- | I used Dow-Corning 795 sealant, which is also structural. To make sure I filled the gap between the window and hull, I used a syringe. | + | I used Dow-Corning 795 sealant, which is also structural. To make sure I filled the gap between the window and hull, I used a syringe. |
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- | Make sure you remove the masking tape before the sealant cures, and preferably immediately after application. | + | Make sure you remove the masking tape before the sealant cures, and preferably immediately after application.\\ |
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