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Search took 0.00 seconds. Search: Posts Made By: Terra Nova
Forum: Construction, Maintenance & Refit 27-11-2014, 10:59
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

Good questions.

The hull was OK at 1" thick (or whatever) before you started running hole saws through it. A bonded doubler (backing block) reinforces the hull's skin in the area around the hole...
Forum: Construction, Maintenance & Refit 27-11-2014, 10:28
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

Def--good post.
Forum: Construction, Maintenance & Refit 27-11-2014, 08:48
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

I would avoid using pine anywhere on a boat, especially below the waterline.
Forum: Construction, Maintenance & Refit 26-11-2014, 11:29
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

Hop--thanks for that. It says "Starboard to Starboard". The site shows "Adheres tenaciously without primers to fiberglass, glass, plastic, metal and wood." Sounds good. Not sure I'd recommend it for...
Forum: Construction, Maintenance & Refit 26-11-2014, 10:49
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

No, there is no compression on uncured caulk. It squeezes out.
Forum: Construction, Maintenance & Refit 26-11-2014, 10:21
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

Not so fast. :)

An O-ring seals because
a) it is trapped in a groove so it cannot squeeze out
and
b) because it is under compression

Neither of these conditions are met with sealant against...
Forum: Construction, Maintenance & Refit 26-11-2014, 09:19
Replies: 31
Views: 15,288
Posted By Terra Nova
Re: Thru hull backing blocks

I also would not use King Starboard. Instead I use Bruynzeel marine plywood, epoxied with WEST epoxy, and carefully fitted to the curve of the hull. Bed with 3M 5200.
Showing results 1 to 7 of 7

 
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