FWIW, in case it's useful: After a few months of procrastination, I girded
my loins with an Old Testament metaphor and opened up the front, tubeless
Big One on the Matthews, thinking that I would have to clean off a dried
"skin" after almost 15 months, and thinking that, after what turned out to
be almost 6 months, no liquid sealant would remain inside -- tho' I had
noticed with pleasure that I had not been getting thorn flats despite
carrying thorns around in the tread for miles.
1. Nope, no skin after 15 months since installing the Big Ones on 13 Jan
2018 and repeated infusions of Orange Seal Regular.
2. I ordinarily add 2 oz sealant every 3 mos, but turns out I had last
added it on Oct 20 2018, no more until today. Found at least1 oz and
probably closer to 2 fl oz remaining in front tire.
3. Was able, using Jan's instructions (more or less; pinch casing to work
beads onto shoulders), to get tire sufficiently seated that it held enough
air for the pressure to pop the beads back on the shoulders. I pumped it up
to (by thumb test) close to a super-hard 30 psi: Pow! Pow! Pow! There was a
bit of seepage around the bead that stopped after 10 min or so -- am
leaving tire off bike just in case have to clean further. No need for
compressor!
Note that the beads had stretched since initial installation; easy to get
one bead off rim; easy to get both back onto shoulders.
4. Damned mess stuff, sealant, dribbling all over the floor and the
workbench, and requiring elbow work to clean it off rim, tire, and spokes
-- liquid, and dried to various consistencies; hardest required steel wool.
5. Infused 1 fl oz from new bottle of Orange Seal Endurance; had been using
O S Regular. We'll see how this plays.
Altogether, chuffed that sealant lasted almost 6 mos, albeit in colder and
certainly wetter weather this winter; and even more so that it hadn't
formed a skin. When I removed a F Fred in 2018 after ~2 years, it had
gained 100-150 grams in weight from dried sealant; a lot for a 360 gram
tire.
Sealant in tubes: I've found Stan's boluses in tubes after 18-24 months,
but OS seems to remain liquid in tubes as long as it does in the bottle.
--
*------------------------------------------------------------------------------------*
*Still 'round the corner there may waitA new road or a secret gate,And
though we pass them by today,Tomorrow we may come this wayAnd take the
hidden paths that runTowards the Moon or to the Sun.*
--- J.R.R. Tolkien
-----------------------------------------------------------------------
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