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Discussion Starter · #1 ·
Hi All

Has anyone heard of sealants destroying rims from the inside because of high acidity? I have noticed that some selants smell like amonia and there is a rumour running around here that the DT sealant eats rims from the inside. What ingredients go into making sealants?
Please prove this to be wrong!

Moo
 

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yeah, Stans and probably all latex based sealant are spiked with ammonia to prevent the polymerization of the isoprene monomer (active component in latex). so when the tire is punctured, the is exposed to air, the ammonia very quickly evaporates (bp of NH3 is ~-33 degC) leaving the isoprene to spontaneosly polymerize in the puncture hole, sealing the puncture hole

ammonia is not an acid. vinegar is an acid for example (acetic acid). i have never heard of a sealant that was spiked with an acid catalyst. please give more detail on your finding or research
 

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Discussion Starter · #3 ·
Thanks for the informative reply.
The "rumor" is based on DT sealant that had passed is use by date. Could anything go "wrong" with the sealant if it passed its shelf life and was used after the expiry date?
Moo
 
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