|
Related Topics:
| Epoxy putty tool, for filleting inside corners - Here's a handy tool that puttying inside corners prior to with class fabric and resin. Go to K-mart, Wall-mart or Target and buy two cheap, meat Japanese vegetable chopping knives. Grind the front face of each..
crack fix - fiberglass - Howdy all, I've got some visible cracks at the bottom of my hull on my 16ft runabout. This past summer when using the boat I was getting a bit of water in it after having it sit for a while in the water (the bilge pump easily took care of it). I'm..
Planer on fiberglass? - I have a canoe that I am It's got a few holes in it and the keel board has chunks of missing and deep cracks in the resin. Has anyone used a power planer on as a way of removing it? Did it ruin your planer? I should..
Fiberglassing my daggerboard? - I would like to drill a couple holes in my mahogany (on a 13' boat) and fill them with lead. Although I am sure the boat can handle it, I am not so sure about the I am thinking of sanding an 1/8" of an inch off it all around (or..
FYI for those working with fiberglass - After a day of working and grinding the deck of a project boat the one thing I didn't think of getting all over me. Well ,,,we learn from our mistakes right! Some people say to take a pair of panty hose and rub it
|
|
|
Next: Boat Building: Aluminum bow thruster tubing
|
| Author |
Message |
External
Since: Jun 30, 2003
Posts: 132
|
(Msg. 16) Posted: Mon Aug 27, 2007 8:21 pm
Post subject: Re: Forming rounded corners with Fiberglass and ply. [Login to view extended thread Info.]
Archived from groups: rec>boats>building (more info?)
|
|
|
<doublesb.RemoveThis@hotmail.com> wrote:
> I must be missing something here. A dodger is just a roof. Why all
the
> epoxy and glass? I wouldn't use any glass and just use wood and
epoxy
> for sealing. You should be able to build it in place and wood is
alot
> easier to work with than glass. Either paint it or leave it natural.
This is going to be a large, say 12x12 rigid dinghy that will support
a solar panel farm.
Wood is heavy, wood will rot, and wood is weak when compared to a foam
core complete with knitted glass and epoxy skins.
The above structure would add a lot of weight high above the water
line if made of wood.
Just for reference, a 4x8x1/2 sheet of plywood weighs about 42#, while
a 4x8x3/4 sheet of Divinycell weighs about 16#-17#.
Lew |
|
| Back to top |
|
 | |
External
Since: May 20, 2007
Posts: 35
|
(Msg. 17) Posted: Tue Aug 28, 2007 1:57 pm
Post subject: Re: Forming rounded corners with Fiberglass and ply. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
On Mon, 27 Aug 2007 20:21:58 -0700, "Lew Hodgett"
<lewhodgett.DeleteThis@earthlink.net> wrote stuff
and I replied:
>This is going to be a large, say 12x12 rigid dinghy that will support
>a solar panel farm.
>
>Wood is heavy, wood will rot, and wood is weak when compared to a foam
>core complete with knitted glass and epoxy skins.
Canoes and Kayakers will disagree. I had this discussion with one of
the SNGlue/Strip kayakers, and they were very strong about wood vs
foam....either snglue or strip.
However, I have to admit that if the result is stiffness, noit inpact
strength, then fioam wins at a given weight.
>
>The above structure would add a lot of weight high above the water
>line if made of wood.
But not if made of wood (strip or sng ply) with the same skins or less
(agaon local impact strength)
>
>Just for reference, a 4x8x1/2 sheet of plywood weighs about 42#, while
>a 4x8x3/4 sheet of Divinycell weighs about 16#-17#.
For this purpose you need quite thin ply...1/4 or 3/8, and then less
glass or WHY because it's better for puncture.
Moot point. Just presenting the other POV. In my time I have tried
both, and find it hard to really fight one way or the other.
>
>Lew
>
Human bevaviour: Bestiality with a brain |
|
| Back to top |
|
| |
External
Since: Aug 18, 2007
Posts: 43
|
(Msg. 18) Posted: Tue Aug 28, 2007 4:37 pm
Post subject: Re: Forming rounded corners with Fiberglass and ply. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
Lew Hodgett wrote:
> <doublesb.TakeThisOut@hotmail.com> wrote:
>
>
>>I must be missing something here. A dodger is just a roof. Why all
>
> the
>
>>epoxy and glass? I wouldn't use any glass and just use wood and
>
> epoxy
>
>>for sealing. You should be able to build it in place and wood is
>
> alot
>
>>easier to work with than glass. Either paint it or leave it natural.
>
>
> This is going to be a large, say 12x12 rigid dinghy that will support
> a solar panel farm.
>
> Wood is heavy, wood will rot, and wood is weak when compared to a foam
> core complete with knitted glass and epoxy skins.
>
> The above structure would add a lot of weight high above the water
> line if made of wood.
>
> Just for reference, a 4x8x1/2 sheet of plywood weighs about 42#, while
> a 4x8x3/4 sheet of Divinycell weighs about 16#-17#.
>
> Lew
>
>
That's for the foam panels only.
Add the glass and epoxy and it will be nearer 43 pounds  >> Stay informed about: Forming rounded corners with Fiberglass and ply. |
|
| Back to top |
|
| |
External
Since: Jun 30, 2003
Posts: 132
|
(Msg. 19) Posted: Tue Aug 28, 2007 4:37 pm
Post subject: Re: Forming rounded corners with Fiberglass and ply. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"cavelamb himself" wrote:
> That's for the foam panels only.
>
> Add the glass and epoxy and it will be nearer 43 pounds
The total weight is a function of the number of layers of glass in the
skins, so the total weight probably exceeds 43#, but did you bother to
calculate the stiffness of the foam/glass sandwich which is what truly
drives the design?
Lew >> Stay informed about: Forming rounded corners with Fiberglass and ply. |
|
| Back to top |
|
| |
External
Since: Aug 18, 2007
Posts: 43
|
(Msg. 20) Posted: Mon Oct 15, 2007 8:50 am
Post subject: Re: Forming rounded corners with Fiberglass and ply. [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
|
|
| Back to top |
|
| |
|
FAQ
Search
Profile
Private Messages
Log in/Register/Password
