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Compass Marine How To | all galleries >> Welcome To >> Re-Bedding Deck Hardware With Bed-It Tape > Marine Sealant Failure
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Marine Sealant Failure

Here's a prime example of where the 1/16" of movement might make a difference. This is a stanchion base on a major production sailboat that was only two years old. The factory marine sealant, made by 3M, has failed and caused a void when the stainless plate flexed and bent.

This is another reason I prefer cast stainless or aluminum stanchion bases as they do not flex like plate stainless does. On top of the stanchion base bending this manufacturer also does not countersink the deck holes, which in this case resulted in wet deck core in under two years! Had the deck penetrations been properly countersunk there is a very high probability that this leak never would have occurred despite the cheesy quality of the stanchion base..

Olympus C-2040Z
1/160s f/4.0 at 4.1mm iso80 full exif

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