Inner tube sealant

Xyeet

Member
Have you experimented with sealant and inner tubes? Do you find general-purpose sealants like Stans effective, or do you prefer inner tube-specific formulas like Muc-Off?


 
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Tried Stan's and Slime. Stan's worked when I had a massive puncture at night. Running with Black Slime now as an expirament. Does not seal leaks reliably in the sidewall. Gets too thick, seals the leak intermittantly, on again off again with the same leak. Going back to Stan's, it stays more liquid and seals permanantly, for me. YMMV
 
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I have used them all. The best solution is Muc-Off. I do this on about three to five bikes per day and charge $20 per wheel at Petaluma Motor Wheel, an all eBike shop. The key, as @fooferdoggie alluded, is to put a half-a-pea sized glop of silicone plumber's grease into the valve stem before replacing the valve core. I use a half bamboo spoon for the grease application. Yesterday there was a Rad with 50-80 goathead thorns. I simply pulled all of them and did the injection. Because it is a fat bike I used six ounces per tube, not four. It forms polymer strings in any puncture up to two mm. Pro-tip: Automotive brake parts grease is silicone just like plumber's O-ring lube. Without it the valve will clog and leak air. After something like 500 bikes we have only seen one failure. It looked like a Buffy attack. A 2.5 inch sharpened triangle of oak went into an eMTB tire.
 
I have used them all. The best solution is Muc-Off. I do this on about three to five bikes per day and charge $20 per wheel at Petaluma Motor Wheel, an all eBike shop. The key, as @fooferdoggie alluded, is to put a half-a-pea sized glop of silicone plumber's grease into the valve stem before replacing the valve core. I use a half bamboo spoon for the grease application. Yesterday there was a Rad with 50-80 goathead thorns. I simply pulled all of them and did the injection. Because it is a fat bike I used six ounces per tube, not four. It forms polymer strings in any puncture up to two mm. Pro-tip: Automotive brake parts grease is silicone just like plumber's O-ring lube. Without it the valve will clog and leak air. After something like 500 bikes we have only seen one failure. It looked like a Buffy attack. A 2.5 inch sharpened triangle of oak went into an eMTB tire.
good to know. I'll try it when by new Stan's runs out.
 
I have used them all. The best solution is Muc-Off. I do this on about three to five bikes per day and charge $20 per wheel at Petaluma Motor Wheel, an all eBike shop. The key, as @fooferdoggie alluded, is to put a half-a-pea sized glop of silicone plumber's grease into the valve stem before replacing the valve core.

That's a good idea I have been using peety's its like stans but you can use c0-2 it also goes a long time without drying out.
 
Ideally I would use nitrogen gas. It is inert. Helium would lessen the weight of the bike so it could fly! Actually the smaller molecules out-gas fast. Dense ones work better as @fooferdoggie suggests. Maybe fill them with propane. What could go wrong?
 
Ideally I would use nitrogen gas. It is inert.
Nitrogen might be better ideally, but from what I can tell it's marginal.

The reason for CO2 though is that a large volume of gas can be compressed into a liquid so that you can easily fill a tire with a tiny cartridge of CO2. I don't have real figures, but it would probably take a bottle of pressurized Nitrogen gas the size of a 1 lb propane bottle to fill up the same tire.

Nitrogen can be compressed into a liquid but at much higher pressure. and when it quickly expands into a gas it does so at a much lower, very dangerous, temperature.

TT
 
Nitrogen might be better ideally, but from what I can tell it's marginal.

The reason for CO2 though is that a large volume of gas can be compressed into a liquid so that you can easily fill a tire with a tiny cartridge of CO2. I don't have real figures, but it would probably take a bottle of pressurized Nitrogen gas the size of a 1 lb propane bottle to fill up the same tire.

Nitrogen can be compressed into a liquid but at much higher pressure. and when it quickly expands into a gas it does so at a much lower, very dangerous, temperature.

TT
Terminator liquid nitrogen scene, all in your bike tire!
 
What kind of results have people seen with the after-the-flat sealants, like a small can of fix-o-flat. I have gone riding with others and they get a flat tire. Would be nice to have a portavle fix in my bag to help out,

Now in my car, fix-o-flat only works about a third of the time, since I can get a nail in the two sidewalls where it doesn't help.
 
What kind of results have people seen with the after-the-flat sealants, like a small can of fix-o-flat. I have gone riding with others and they get a flat tire. Would be nice to have a portavle fix in my bag to help out,

Now in my car, fix-o-flat only works about a third of the time, since I can get a nail in the two sidewalls where it doesn't help.
There is Muc Off bam which seems to be new product:
 
There is Muc Off bam which seems to be new product:
A collogue today said, 'Fill it with N0X, that way if you crash, with a flat and then have a dental issue, you can just huff the tube'.

 
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I always input a blast of air before checking pressure or releasing air to blow the valve clear of any sealant. Since I started doing this no valve issues.
Using Flat Out at the moment
 
I watched a video where a kid used fix-o-flat on a bike tire. Made a horrible mess. Just like it does on a car tire except only the tire installer sees it, I'll start carrying a bottle of slime with an air pump,
 
Have you experimented with sealant and inner tubes? Do you find general-purpose sealants like Stans effective, or do you prefer inner tube-specific formulas like Muc-Off?


I have ordered a Fat Tire recumbent Trike. I plan on putting Flat-Out in the tubes when I unpack it (Fri) Nov 1, 2024. I have used the slime , tire liners and the Tannus Armour in previous bikes. While I have had the BEST results from Tannus. The reviews of the Flat-out to me. Seem like an easier option.
 
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