Pet Project with Nidacore - Hatch Cover

CEShawn

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So I am currently doing a little pet project, in the end if I have to nothing needs to get done.

So I haven't played with composites so I figure I will give them a try. When I didn't have a boat over the summer I picked up a piece of coosa and a few pieces of nidacore.

So right now I have a engine hatch that is starting to fail. This engine hatch is nothing major, its is just 1/2" piece of plywood with a smaller 1/2" piece of plywood on the bottom of it.

So I figure I would get a piece of 1/2" nidacore and glass it up. I figure if it comes out lighter than the plywood it will be easier to pull up etc. If its easier to pull up, the more people will check it.

So I glassed up the first part of it and now debating on how to do the second half. At first I was just going to glass up another 1/2" piece if nidacore as a sandwich.

Taking how I repair and build stuff on ships, we usually take angle iron or other material and lay it perpendicular, to create a butt joint and then the material is tougher to "bend" if you will. My skills are basic, so is my vocabulary with this. This is how we make things stronger and weight savings.

So then I was thinking I have some scrap nidacore from before, I was thinking about taking the larger piece you see and cutting it into 1" strips, then putting it on at 90 degree's and just attaching it with epoxy and filler. Put the strips maybe 4-8" apart down the board. The unfinished piece is what I was going to do with the sandwich. That tall piece is prefinished and scrap material for me now.

The other option would be to take the 2" fiberglass angle and put it under there just like we do on ships. I may have to trim and cut that to fit over the engine but would retain its strength...

So what do you guys think?

photo (49).jpg
 

Robert M

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I think I need to start a similar project come spring. Weight is not an issue but I'm gonna go with the nida. Best of luck, and take pics please.
 

Robert M

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I was given or rather offered a large sheet from neighbor at the dock, he's pretty handy with the glass, so I've been feeding him beers all summer.
 

steveinak

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Oh yeah, getting good pricing out of LBI Fiberglass... http://www.lbifiberglass.com/

Are there better places to buy it? As I am always looking to save
money...thanks...[/QUOTE

So a 4x8 sheet (2 2x4 pieces of 1/2" nida) costs you $37??? the shop i deal with here quoted me $225 a sheet for the same stuff !!! Wish i could buy supplies at your prices.
 
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CEShawn

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That low price is just with scrim. A glassed panel is that 270 or so...
 

Robert M

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maybe we should start loading our boats with the stuff and head your way, that is crazy.
 
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