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is it me or does Mac-off tubeless sealant plug everything like crazy?

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is it me or does Mac-off tubeless sealant plug everything like crazy?

Old 08-06-23, 05:10 PM
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is it me or does Muc-off tubeless sealant plug everything like crazy?

Sometimes only one or two times adding air the valve can plug up. once it was so bad no air would come out. Plus under pressure and heat it seems to foam a lot. like I had the valve at 2 and when I took the valve out sealant was foaming all over the place.

Last edited by fooferdoggie; 08-06-23 at 08:47 PM.
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Old 08-06-23, 08:46 PM
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Originally Posted by fooferdoggie
Sometimes only one or two times adding air the valve can plug up. once it was so bad no air would come out. Plus under pressure and heat it seems to foam a lot. like I had the valve at 2 and when I took the valve out sealant was foaming all over the place.
Let's face reality. Sealant is added to plug holes. Like blood, it clots when squeezing through narrow gaps.

Now, sealant isn't too bright and can't tell the difference between holes to plug, and those to leave open.

So, the key to adding sealant is to remove the valve core, leaving a clean bore for the sealant to pass through.

Also, avoid bleeding air unless you must, and if so keep the valve high to minimize sealant flow.
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Old 08-06-23, 08:49 PM
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Originally Posted by FBinNY
Let's face reality. Sealant is added to plug holes. Like blood, it clots when squeezing through narrow gaps.

Now, sealant isn't too bright and can't tell the difference between holes to plug, and those to leave open.

So, the key to adding sealant is to remove the valve core, leaving a clean bore for the sealant to pass through.

Also, avoid bleeding air unless you must, and if so keep the valve high to minimize sealant flow.
but I have had other sealants and they sure did not plug up the valve a bad. I have been just tapping the valve if the tire has gotten low faster then expended to see how the airflow is. the Muc-off tends to foam up so even if the valve is straight up you get some coming out.
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Old 08-06-23, 09:17 PM
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Originally Posted by fooferdoggie
but I have had other sealants and they sure did not plug up the valve a bad. I have been just tapping the valve if the tire has gotten low faster then expended to see how the airflow is. the Muc-off tends to foam up so even if the valve is straight up you get some coming out.
I'm sure that various sealants use different approached to ensure that sealant rapidly gets to leaks. Some are fairly thick liquids that depend on the spining wheel to spread them in the tread area. Others tend to be more foamy, as apparently Muc-off does.

It is what it is, so the only solution might be to try a different brand. You might try dinning the wheel fast for a few seconds, to drive most of away from the valve.
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Old 08-06-23, 09:20 PM
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Originally Posted by FBinNY
I'm sure that various sealants use different approached to ensure that sealant rapidly gets to leaks. Some are fairly thick liquids that depend on the spining wheel to spread them in the tread area. Others tend to be more foamy, as apparently Muc-off does.

It is what it is, so the only solution might be to try a different brand. You might try dinning the wheel fast for a few seconds, to drive most of away from the valve.
the last several times I have checked its been pretty hot out. so it may be a heat thing causing it to really foam up. the guy I buy my wheels from he got a big jug with a pump built it and he says the pump keeps clogging up.
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