Automotive Slime vs. Cycling Slime
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Automotive Slime vs. Cycling Slime
I'm finding its getting harder to find bicycle Slime. The automotive shops have plenty. Is there any difference in the composition of the Slime intended for automobile tires or is it just a different size container for the larger volume?
If there is a difference, what are the differences in attributes and composition of the automoitve Slime vs. cycling Slime?
If there is a difference, what are the differences in attributes and composition of the automoitve Slime vs. cycling Slime?
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It's the same stuff. Buy the auto parts store variety and use it, you'll be just fine.
I bought a couple of bottles last year from either Performance or Nashbar, don't know if it's still in their online catalogs.
I bought a couple of bottles last year from either Performance or Nashbar, don't know if it's still in their online catalogs.
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Be careful! The stuff for tubless car tires is not the same as the stuff for tubes. Make sure you get the stuff for tubes, and you'll be fine.
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Is the automotive tubless Slime different than the bike tubless Slime?
Is the tubeless Slime for cars different than tube Slime for cars?
I had my suspicions there might be propylene glycol to fiber ratio differences for a low pressure high volume automotive tire vs a low volume high pressure bicycle tire.
Is there a ratio difference also for tube vs. tubless? -or another ingredient in the tubless?
or Both?
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Or did you use the tubless and are you saying the trouble you had was due to tubless not comprising a propylene glychol base as raised by waldowales red flag?
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Since noone could tell about the merrits/compatibility/optimization of the automotive tubeless Slime in bike tires, I got some and put some in three tires so far. Went with an intermediate 24 oz bottle rather than getting a gallon given the experimental nature of the cross application.
If it fails or if I get a major self repair puncture-I'll report back.
If it fails or if I get a major self repair puncture-I'll report back.
Likes For meb:
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Since noone could tell about the merrits/compatibility/optimization of the automotive tubeless Slime in bike tires, I got some and put some in three tires so far. Went with an intermediate 24 oz bottle rather than getting a gallon given the experimental nature of the cross application.
If it fails or if I get a major self repair puncture-I'll report back.
If it fails or if I get a major self repair puncture-I'll report back.
It's been a while since your last post, so sorry to revive the thread again

My local bike store is setting up tubeless tires for all the biker customers using the automotive slime
I'm a bit reserved in buying that stuff from them thinking that they are selling the automotive version just because it's cheaper for them to get it in gallons from the supplier, knowing that the cycling stuff may not be available in such large volumes, nor cheaper
So...please let me know what's your take on this
Appreciate it, thanks !
Chris
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The automotive Slime is better at punctures than the bicycle Slime-if that is your question. The automotive Slime is designed with larger pieces of solid for blocking bigger holes.
But I think you were looking at comparing the automotive Slime to the tubeless bike compounds- that white colored stuff used at sealing the tire to the rim- and I don’t a strong opinion since I don’t run tubeless bike tires.
My guess is Slime is poorer for sealing tires to the rim since it has propylene glycol and solid matter both of which are designed to block puncture holes by filling rather than “glue” the rim and tire to one another.
But I think you were looking at comparing the automotive Slime to the tubeless bike compounds- that white colored stuff used at sealing the tire to the rim- and I don’t a strong opinion since I don’t run tubeless bike tires.
My guess is Slime is poorer for sealing tires to the rim since it has propylene glycol and solid matter both of which are designed to block puncture holes by filling rather than “glue” the rim and tire to one another.
Last edited by meb; 12-18-20 at 11:34 PM. Reason: misidentifed type of glycol
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But I think you were looking at comparing the automotive Slime to the tubeless bike compounds- that white colored stuff used at sealing the tire to the rim- and I don’t a strong opinion since I don’t run tubeless bike tires.
My guess is Slime is poorer for sealing tires to the rim since it has ethylene glycol and solid matter both of which are designed to block puncture holes by filling rather than “glue” the rim and tire to one another.
My guess is Slime is poorer for sealing tires to the rim since it has ethylene glycol and solid matter both of which are designed to block puncture holes by filling rather than “glue” the rim and tire to one another.

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If you get a large puncture, you are going to have to patch it anyway. So I use the most economical sealant. Last time I bought it, it was the sealant sold primarily for cars, but can be used in any tires. I have this in a fat bike.
I did see a Youtube video comparing the different brands. It seems some brands seal slightly larger holes. But I would not buy a brand that was significantly more expensive.
I did see a Youtube video comparing the different brands. It seems some brands seal slightly larger holes. But I would not buy a brand that was significantly more expensive.