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  #1  
Old 08-05-2021, 12:08 PM
rv9builder rv9builder is offline
 
Join Date: Jan 2005
Location: Irvine, CA
Posts: 983
Default ProSeal cartridges for an RV-12iS tank

Has anybody built an RV-12iS fuel tank using 3.5-ounce cartridges instead of the usual quart container? How many cartridges did you need for the tank?

https://shop.vansaircraft.com/cgi-bi...roduct=proseal

Thanks,
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  #2  
Old 08-05-2021, 10:01 PM
Azjulian Azjulian is offline
 
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Location: Scottsdale, Arizona
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You should only need one.

Vans have an excellent fuel tank build video they posted on YouTube - I would watch that first. You need a lot less than you think
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  #3  
Old 08-06-2021, 08:48 AM
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BobbyLucas BobbyLucas is offline
 
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Location: Belleville, MI
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I bought two cartridges but in hindsight wish I had gone with the quart. Once you mix the cartridge you have to work reasonably fast, which I apparently did not. When the first cartridge started getting hard to work with, I gave up for the day. Same thing happened with the second cartridge. I then ordered the quart and finished up the tank on my third session.
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  #4  
Old 08-06-2021, 09:03 AM
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Piper J3 Piper J3 is offline
 
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Keep the unmixed ProSeal and hardener in a freezer to slow deterioration and increase shelf life.
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  #5  
Old 08-06-2021, 01:32 PM
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rcarsey rcarsey is offline
 
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Location: North Brunswick, NJ
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I build two tanks. One with cartridges, the other with the cans. I had trouble using the cartridges (the 2-hour ones) because it started to get thick and unworkable a little too fast. If you get slower-cure cartridges, I think that'd be perfectly fine.

Don't be afraid of mixing the ProSeal yourself and making small batches at a time. A $20 scale from Walmart was all I needed.
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  #6  
Old 08-06-2021, 09:49 PM
DaveWelch DaveWelch is offline
 
Join Date: Mar 2005
Location: Huntsville, AL
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Default Various Uses

Go with the Quart. It doesnít cost much if any more than 2-3 cartridges and there are a number of other places in the build where it is called out, recommended, or just darned handy. Also a good way to make new friends at your airport when they have an air or fuel leak!
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  #7  
Old 08-07-2021, 12:39 PM
rv9builder rv9builder is offline
 
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Thanks, everyone. I appreciate the suggestions. After rethinking this, I think I'll go with the quart can.
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  #8  
Old 08-07-2021, 12:53 PM
NinerBikes NinerBikes is offline
 
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Quote:
Originally Posted by rv9builder View Post
Thanks, everyone. I appreciate the suggestions. After rethinking this, I think I'll go with the quart can.
A little late, but a fair amount of RV-12 builders just buy the tank built and Pro sealed already from Van's, to avoid this.
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  #9  
Old 08-07-2021, 02:16 PM
rv9builder rv9builder is offline
 
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Quote:
Originally Posted by NinerBikes View Post
A little late, but a fair amount of RV-12 builders just buy the tank built and Pro sealed already from Van's, to avoid this.
Premade tanks are always an option, but I enjoy building. Working with fuel tank sealant isnít the most pleasant task, but I built the tanks for my 9A, and they came out fine, so I think I can build the tank for the 12iS. I used a quart can for the 9A, so I was thinking about trying the cartridges, but after hearing the pros and cons, I think Iíll go with the quart can again.
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  #10  
Old 08-07-2021, 02:59 PM
FlyingDiver FlyingDiver is offline
 
Join Date: Feb 2019
Location: Southwest Florida
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Quote:
Originally Posted by NinerBikes View Post
A little late, but a fair amount of RV-12 builders just buy the tank built and Pro sealed already from Van's, to avoid this.
For $900 I'll spend a couple days doing the tank...
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