carbon fiber VS glass

Joined
Apr 9, 2009
Messages
6
i want to lay carbon on the inner hull and over stringers and transom with a hi strength epoxy the boat is a 1978 23ft centry want to go big horse power
IS THIS OVER KILL AND want to paint the hole boat with epoxy is this bad
 

jcsercsa

Captain
Joined
May 21, 2007
Messages
3,401
Re: carbon fiber VS glass

i want to lay carbon on the inner hull and over stringers and transom with a hi strength epoxy the boat is a 1978 23ft centry want to go big horse power
IS THIS OVER KILL AND want to paint the hole boat with epoxy is this bad

OHHH MAN way over kill !!! Have you read the Hull ext thread ??? he cut his in half and redid it all in ploy !!! and 1708 glass. you only need that if your going to do off shore racing !!!! even epoxy is over kill and that what i used !!! and I also used e-glass and thats way over kill !!! so i would say just use epoxy and at the most e-glass !! that will take more then what your going to put in here , unless your going to put 10,000 hp in her !!! lol John
 
Joined
Apr 9, 2009
Messages
6
Re: carbon fiber VS fiberglass help

Re: carbon fiber VS fiberglass help

thanks john so just epoxy ang glass just want to make it strong i have all the carbon it is an old boat and want to make it a custom ride have big plans for her what do u think of epoxy resin insted of paint
 

jcsercsa

Captain
Joined
May 21, 2007
Messages
3,401
Re: carbon fiber VS glass

Epoxy doesnt like UV rays so thats not a good idea , or are you talking on the inside on the hull ?? if so thats over kill also !!! You will see when you get in there, you shouldnt need it !! But that being said , if it give you a better piece of mind then go for it !!! thats why i used epoxy , I have used it and trust it !!! John
 

coolguy147

Commander
Joined
Jul 14, 2008
Messages
2,817
Re: carbon fiber VS glass

lol NO COMPETITION


i say if u really wanted to make her light weight then u would use it but i think it would be pricey.

now the question is how long will it last to the beatings? and weathering maybe water
 

erikgreen

Captain
Joined
Jan 8, 2007
Messages
3,105
Re: carbon fiber VS glass

Putting carbon fiber on the inside of an old hull won't do anything for you.

The advantages of carbon fiber are high strength and low weight... if you already have a poly and E glass hull, you're not getting the weight, and if you're only using one layer of carbon on the inside you're not getting the strength, either. You'll get even less if you're not gutting the hull out and laminating the carbon, then rebuilding the interior structure.

It sounds kind of like you want the look of carbon fiber on the inside? If that's so you need to think it over some more... you have to use epoxy to laminate carbon fiber, but boat epoxy is UV sensitive, so you have to paint over it to prevent yellowing. So you wouldn't see it.

"Big horsepower" isn't clear, but I'm guessing you want to exceed the max HP the boat's rated for. Legal and safety reasons aside, this won't get you all you think it will.

The boat's hull is designed for a specific horsepower, IE the difference between a 100 HP boat and a 300 HP boat is more than the strength of the hull and transom. The hull is shaped to perform a certain way with a certain amount of power behind it. Adding a lot more power will get you more speed in a straight line, but it likely will also make the boat unsteerable and unstable (read: likely to have a bad accident).

If you really want to do this, I'd suggest you scratch build a hull to the shape you want, make it a composite hull with two to three layers of carbon on the outside and the same on the inside and a strong transom.

If you want to rebuild the century to be custom, I'd go with a different angle, maybe looks and comfort. Redo the interior with snap out carpet, plush seats, a refrigerator, sound system, etc. Put in sound proofing to make it a quiet, smooth ride.

If you want to go the high HP route, don't bother putting in carbon inside the hull, it won't do anything for you except let you say "my boat has carbon fiber in it". Just put the big engine on it and be aware you're risking a lot by doing so.

Erik
 
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