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Adding Coolant To Water Based Sealants



 
 
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  #1  
Old June 15th 18, 07:10 PM posted to uk.rec.cycling
Bret Cahill
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Posts: 875
Default Adding Coolant To Water Based Sealants

Tubeless MTB riders complain that sealants like Stan's No Flats must be scraped out and replaced every 2 months. Slime claims it'll work for up to 2 years in an inner tube. After a month on hot asphalt it's already drying out.

Water vapor permeates through butyl rubber 2 orders of magnitude faster than air. You can easily check this with kitchen scales. Weigh a sealant filled front wheel every 2 weeks this summer.

Polypropylene glycol is non toxic and greatly lowers the total vapor pressu

https://dowac.custhelp.com/app/answers/detail/a_id/7412

Coolant might also reduce the coefficient as well as the driver. The sealing characteristics should be just as good..

Has anyone heard of a sealant w/ coolant already added?


Bret Cahill

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  #2  
Old June 18th 18, 05:09 AM posted to uk.rec.cycling
Bret Cahill
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Posts: 875
Default Adding Coolant To Water Based Sealants

Tubeless MTB riders complain that sealants like Stan's No Flats must be scraped out and replaced every 2 months. Slime claims it'll work for up to 2 years in an inner tube. After a month on hot asphalt it's already drying out.

Water vapor permeates through butyl rubber 2 orders of magnitude faster than air. You can easily check this with kitchen scales. Weigh a sealant filled front wheel every 2 weeks this summer.


I tried this today and apparently discovered a violation of conservation of matter: The weight _increased_ by 6 gms or 1/4th an oz.

Either that or the kitchen scales are suspect.

Polypropylene glycol is non toxic and greatly lowers the total vapor pressu

https://dowac.custhelp.com/app/answers/detail/a_id/7412

Coolant might also reduce the coefficient as well as the driver. The sealing characteristics should be just as good..

Has anyone heard of a sealant w/ coolant already added?


Bret Cahill

  #3  
Old June 18th 18, 01:34 PM posted to uk.rec.cycling
[email protected]
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Posts: 489
Default Adding Coolant To Water Based Sealants

On Friday, 15 June 2018 19:10:33 UTC+1, Bret Cahill wrote:
Tubeless MTB riders complain that sealants like Stan's No Flats must be scraped out and replaced every 2 months. Slime claims it'll work for up to 2 years in an inner tube. After a month on hot asphalt it's already drying out.

Water vapor permeates through butyl rubber 2 orders of magnitude faster than air. You can easily check this with kitchen scales. Weigh a sealant filled front wheel every 2 weeks this summer.

Polypropylene glycol is non toxic and greatly lowers the total vapor pressu

https://dowac.custhelp.com/app/answers/detail/a_id/7412

Coolant might also reduce the coefficient as well as the driver. The sealing characteristics should be just as good..

Has anyone heard of a sealant w/ coolant already added?


Bret Cahill


https://bit.ly/2K1FUo5
 




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