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Recurring "osmosis".
Appearance and repair.
1. FALSE BELIEF IN FEW RECURRENCIES
1.1. Confusing rumors about recurrence extent.
When asked about recurrence percentage most "osmosis" operators
will present different figures. Everything between 5% and 100%
is mentioned.
This might seem confusing, but different repair systems, climate,
size of hulls, type of water and a lot of other circumstances
really provide for such differences!
In a cold climate area an operator using IR heating and a hard
type epoxy water shield will have very few claimed failures. Even
if in fact the "osmosis" will recur in at least 30% of the repaired
hulls, the normal 5 years warranty will have expired long before
the recurrence is detected.
In a tropic climate an operator, who only repairs charter yachts
of more than 50´, might have 100% failures within the 5 years
period.
1.2. Average recurrence rate at least 50%.
1.2.1. 40% "osmosis" cases can be easily repaired.
About 40% of the "osmosis" cases are of the "cosmetic" type (see
chapter 1 page 5: 2.5.) and will not recur.
1.2.2. 10% are shallow enough for successful repair.
About 10% are shallow enough to allow for a total removal of the
"osmosis" factors with the help of currently known repair systems.
1.2.3. 30% have "osmosis" undetected under repair coats.
Many types of repair coats prevent blistering and leave the boat
owners in a false state of confidence for many years.
1.2.4. In 20% of the repaired hulls recurrence has been detected.
About 20% of the "osmosis" treated hulls have been re-treated
one or more times or stay ashore unable to dry sufficiently to
pass a surveyor inspection.
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