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Old 10 March 2004, 08:07   #1
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Fiberglass Fuel Tanks

Hi folks

Thinking about increasing my range by moulding some fiberglas fuel tanks to fit flush with the deck.

My question though if I mould using polyester resin/CSM does the inside of the tank need to be treated to prevent attack by the diesel or leaching of anything harmful into the diesel.

Have had flexi tanks in past but given the volume find then hard to handle end fix in place, besides they leave the deck nice and slippy due to the leaks .

Regards Gary
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Old 10 March 2004, 08:31   #2
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Why not look at...........

flexible fuel tanks instead of going to all the hastle of glassing them in. I believe you can get them made to measure or simply off the shelf to hold in excess of 50 gallons. Of course you'd need the locker/under floor space for this. Just a thought !
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Old 10 March 2004, 09:18   #3
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I believe scorpion use resin fuel tanks, but it has to be a particular type of resin to withstand attack from fuel. I have no idea what type though.
Nick.
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Old 10 March 2004, 09:23   #4
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The resin is an acid proof type which also resists diesel

Pete
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Old 10 March 2004, 10:26   #5
nik
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I must say I prefer this idea as you can make it to fit your hull. With the constant flexing, stainless steel will crack eventually unless you make it rigid enough, which will add to weight. And what about electrolysis? I presume aluminium will suffer from the same problems, apart from weight.
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Old 10 March 2004, 15:22   #6
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Quote:
Originally posted by nik
I believe scorpion use resin fuel tanks, but it has to be a particular type of resin to withstand attack from fuel. I have no idea what type though.
Nick.
Neo Pentyl Glycol

Now, before you go thinking I'm a clever sod, I've just got an encyclopaedic memory when it comes to boat stuff. This is a jwalker bit of info. Do a search on the it, or on the word "molecule" here on RIBnet. http://rib.net/forum/showthread.php?...cule#post34286
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Old 10 March 2004, 17:49   #7
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Thanks folks

I plan to have the fuel tanks as part of the deck wrapped around the console, in effect bringing the step up into the bow back a bit.

Give this they will be open and often walked on.

All the fuel tanks i have seen like you say or designed to go into somthing to supply support. These tanks will have to be strong enough in their own right.

Now its just a matter of finding somwhere that sell the stuff and checking the binging in CSM is compatable.


Thanks Gary
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Old 11 March 2004, 06:28   #8
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Glasplies, 2 Crowland St, Southport, Lancs, PR9 7RZ.
Tel.01704 540 626

You can order by credit card. It'll arrive 2 days later.

NPG resin - 55 / 20kg drum inc. catalyst
Roll of CSM - they vary in size - about 40

For completeness - Layup resin 35 / 20kg drum.

Prices may be a few months out of date.
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Old 11 March 2004, 14:38   #9
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Thanks JW.

Southports only 40 min drive for me so may pop over and have a look rather then do mailorder.

Im always out when they deliver

Thanks Gary
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Old 11 March 2004, 17:47   #10
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Back end of Southport near the gas works.

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