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construction [2024/04/28 01:26] riverconstruction [2025/10/11 10:11] (current) river
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 [[conformal_coating|Conformal Coating]] [[conformal_coating|Conformal Coating]]
 +
 +===== Waterproofing Connectors =====
 +
 +  * Self-amalgamating tape.
 +  * Scotchkote - paint over electrical tape.
 +  * Silicone grease in connector. Don't get it on outside of cables or parts that things like tape need to stick to.
  
 ===== Waterproof Enclosures ===== ===== Waterproof Enclosures =====
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 This is a HAMMOND 1590WPFL, which I got to try. This is a HAMMOND 1590WPFL, which I got to try.
 +
 +153 x 83 x 54mm. IP65.
  
 I did not consider when ordering this box that it has internal ribs. This is a problem for forming a watertight seal with connectors that want to do that on the inside. I ground an area flat around the hole for the NMEA-2000 connector, and applied plenty of butyl sealant tape. I did not consider when ordering this box that it has internal ribs. This is a problem for forming a watertight seal with connectors that want to do that on the inside. I ground an area flat around the hole for the NMEA-2000 connector, and applied plenty of butyl sealant tape.
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 Another detail is that the box is thinner at the bottom, which you need to allow for if measuring. Maybe better to design inserts / PCBs to the datasheet spec. Another detail is that the box is thinner at the bottom, which you need to allow for if measuring. Maybe better to design inserts / PCBs to the datasheet spec.
 +
 +=== A Plastic Box ===
 +
 +{{::img_20240428_023639.jpg?600|}}
 +
 +[[https://uk.farnell.com/hellermanntyton/el161/junction-box-square-ip67-162x116x76mm/dp/3371546]]
 +Hellermanntyton EL161. Plastic Enclosure, Junction Box, Polystyrene, 162 mm, 116 mm, 76 mm, IP67
 +
 +I also have a plastic box. It seems to be meant as a junction box, and has knockouts on the sides. These are far too large to be useful for my purposes, so they will just weaken the box. It has plastic fasteners to hold the lid on, which is good for corrosion, but no way to mount it without drilling a hole to the inside, or glueing something on. Some boxes like this do have a place to put mounting screws under the box fasteners, but this one doesn't. It is cheap though.
 +
 +Used for [[nyan:boxes|Nyan Box 0]].
construction.1714267584.txt.gz · Last modified: by river

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