Fiberglass tank cleaning.

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I think there is a PTFE tape for fuel. I had good luck with Permatex aviation form a gasket when they were leaking around the threads.

Dave
69S
 
cmessenk said:
Mark these areas and fix with liberal application of JB weld. Rough up the area and make sure the patch covers at least 1 inch past the pinhole or affected area. Let the patch cure for at least 24 hours. I would then re-Caswell again.

That is exactly what I have been thinking....along with biting the Bullet and ordering a tank from Burton's. I would like to keep it original with a FB tank but I guess Steel would be a lot smarter move since I plan to repaint back to original color.

(Carbonfire's going to have a field day with this one :D ):

I'm waiting for the "I told you so" :lol:
 
DogT said:
Good to know boz, how much was postage? According to their page, they are made in UK, but they still recommend a sealer in all tanks.

Dave
69S

They have a postage calculator on their website. Depending on how much it weighs I would guess around $100 for shipping.
 
dirtymartini said:
cmessenk said:
Mark these areas and fix with liberal application of JB weld. Rough up the area and make sure the patch covers at least 1 inch past the pinhole or affected area. Let the patch cure for at least 24 hours. I would then re-Caswell again.

That is exactly what I have been thinking....along with biting the Bullet and ordering a tank from Burton's. I would like to keep it original with a FB tank but I guess Steel would be a lot smarter move since I plan to repaint back to original color.

(Carbonfire's going to have a field day with this one :D ):

I'm waiting for the "I told you so" :lol:


If Burtons suggest new GRP tanks which are supposedly ethanol proof need to be sealed before use, they are unlikely to be able to help with any sort of guarantee, and I think it would not be that sensible to buy a GRP tank which isnt guaranteed fit for purpose.
 
If Burtons suggest new GRP tanks which are supposedly ethanopurposel proof need to be sealed before use, they are unlikely to be able to help with any sort of guarantee, and I think it would not be that sensible to buy a GRP tank which isnt guaranteed fit for

I agree, it would be false economy to try another GRP tank. As much as I would like to keep the bike original with a GRP tank; todays Ethanol fuels that are being rammed up our arses make it just about impossible. It makes me very angry :x
 
There is no problem whatsoever making GRP tanks which are fully resistant to any commonly available pump fuels. Underground fuel storage tanks made of GRP have been in use for decades without any major problems, following the change to Efuels.

However production methods need to be modified to ensure success, when motorcycle tanks are made using the same UL specified resin systems as used to make the underground storage tanks.

The failure to alter production processing even though the correct resin systems are being used, is likely to lead to corrosion in some cases, and is a very good reason why any GRP tank that comes without a guarantee should be avoided!
 
Carbonfibre said:
There is no problem whatsoever making GRP tanks which are fully resistant to any commonly available pump fuels. Underground fuel storage tanks made of GRP have been in use for decades without any major problems, following the change to Efuels.

However production methods need to be modified to ensure success, when motorcycle tanks are made using the same UL specified resin systems as used to make the underground storage tanks.

The failure to alter production processing even though the correct resin systems are being used, is likely to lead to corrosion in some cases, and is a very good reason why any GRP tank that comes without a guarantee should be avoided!
So what is the correct resin and process?
 
willh said:
Carbonfibre said:
There is no problem whatsoever making GRP tanks which are fully resistant to any commonly available pump fuels. Underground fuel storage tanks made of GRP have been in use for decades without any major problems, following the change to Efuels.

However production methods need to be modified to ensure success, when motorcycle tanks are made using the same UL specified resin systems as used to make the underground storage tanks.

The failure to alter production processing even though the correct resin systems are being used, is likely to lead to corrosion in some cases, and is a very good reason why any GRP tank that comes without a guarantee should be avoided!
So what is the correct resin and process?
No love :cry: :lol:
 
willh said:
Carbonfibre said:
There is no problem whatsoever making GRP tanks which are fully resistant to any commonly available pump fuels. Underground fuel storage tanks made of GRP have been in use for decades without any major problems, following the change to Efuels.

However production methods need to be modified to ensure success, when motorcycle tanks are made using the same UL specified resin systems as used to make the underground storage tanks.

The failure to alter production processing even though the correct resin systems are being used, is likely to lead to corrosion in some cases, and is a very good reason why any GRP tank that comes without a guarantee should be avoided!
So what is the correct resin and process?


Novalac vinyl ester resin, with very careful attention paid to the exotherm achieved during the cure process, and use of a chemical resistance layer applied according to resin manufacturers data sheets.
 
Carbonfibre said:
Novalac vinyl ester resin, with very careful attention paid to the exotherm achieved during the cure process, and use of a chemical resistance layer applied according to resin manufacturers data sheets.
Seems easy enough, why isn't anyone doing this?
Was going to make an aluminum gas tank for my modern but this looks to be a farther easier way to get the shape I want and be chemical resistant.
 
Those producing GRP tanks seem very resistant to changing the way they have been doing it previously. Add this to the fact that most have very little understanding of the reasons why improperly made GRP tanks fail when they are used with modern fuels, and you have a recipe for disaster!
 
willh said:
Seems easy enough, why isn't anyone doing this?

Actually, there is. My friend Dave Ashenbrenner, who lives in Florida and goes by the eBay handle "neuxstone" has been making ethanol-resistant fuel tanks for years now. Very elaborate process of CNC crafted molds combined with a hand-layered process that enables him to offer a variety of tanks. I sent him a crappy, but original Dunstall tank that Dave is using for a mold so that I can have a back up if / when mine decides to fail in the future. Here's a link to one of his tanks. I don't have a link handy for his actual website where you can read more about his process....I'll look for it this morning and post it later....or you can email him directly if anyone has any questions for him

http://www.ebay.com/itm/Dunstall-Lowlin ... es&vxp=mtr
 
cmessenk said:
willh said:
Seems easy enough, why isn't anyone doing this?

Actually, there is. My friend Dave Ashenbrenner, who lives in Florida and goes by the eBay handle "neuxstone" has been making ethanol-resistant fuel tanks for years now. Very elaborate process of CNC crafted molds combined with a hand-layered process that enables him to offer a variety of tanks. I sent him a crappy, but original Dunstall tank that Dave is using for a mold so that I can have a back up if / when mine decides to fail in the future. Here's a link to one of his tanks. I don't have a link handy for his actual website where you can read more about his process....I'll look for it this morning and post it later....or you can email him directly if anyone has any questions for him

http://www.ebay.com/itm/Dunstall-Lowlin ... es&vxp=mtr

thats a real nice looking tank -and i bet would last a good long time - hopefully he'll do other styles for nortons too as i would think the crowd looking for a dunstall style tank would be less than the roadster or interstate types.
 
cmessenk said:
willh said:
Seems easy enough, why isn't anyone doing this?

Actually, there is. My friend Dave Ashenbrenner, who lives in Florida and goes by the eBay handle "neuxstone" has been making ethanol-resistant fuel tanks for years now. Very elaborate process of CNC crafted molds combined with a hand-layered process that enables him to offer a variety of tanks. I sent him a crappy, but original Dunstall tank that Dave is using for a mold so that I can have a back up if / when mine decides to fail in the future. Here's a link to one of his tanks. I don't have a link handy for his actual website where you can read more about his process....I'll look for it this morning and post it later....or you can email him directly if anyone has any questions for him

http://www.ebay.com/itm/Dunstall-Lowlin ... es&vxp=mtr

I just sent him a message through E-Bay asking him if he would consider a run of Roadster tanks.
 
cmessenk said:
willh said:
Seems easy enough, why isn't anyone doing this?

Actually, there is. My friend Dave Ashenbrenner, who lives in Florida and goes by the eBay handle "neuxstone" has been making ethanol-resistant fuel tanks for years now. Very elaborate process of CNC crafted molds combined with a hand-layered process that enables him to offer a variety of tanks. I sent him a crappy, but original Dunstall tank that Dave is using for a mold so that I can have a back up if / when mine decides to fail in the future. Here's a link to one of his tanks. I don't have a link handy for his actual website where you can read more about his process....I'll look for it this morning and post it later....or you can email him directly if anyone has any questions for him

http://www.ebay.com/itm/Dunstall-Lowlin ... es&vxp=mtr


If thats so then if he forgets wasting time and money making moulds using CNC, then he is in a position to make a very good living out of these tanks! What sort of guarantee does he offer, and what are the prices like?
 
The tanks dont seem to be guaranteed at all, and are simply lined with a UL approved resin system, which is probably the reason they dont come with a guarantee? I wonder if it would be better to make the tanks out of the UL approved resin, so a proper guarantee could be provided with them?
 
i had seen his stuff on ebay previosuly. but the big question is this there? would this stuff work?
 
Orsonoce said:
i had seen his stuff on ebay previosuly. but the big question is this there? would this stuff work?


If it works then why no mention of a guarantee? There are major problems with GRP tanks used with modern fuels, and not sure that many people are going to want to take a chance with something the seller obviously doesnt have much confidence in...........?
 
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