HANSA 01-2021

SCHiFFStECHNiK | SHiP tECHNoloGY
mmmmmm
© Jotun
Jotun pushes new coating guideline
together with a number of partners, the danish coating specialist Jotun launched the
robotics solution »HullSkater« in spring 2020. in the meantime, the experts are driving
forward the development of guidelines in the absence of global regulation
The solution is said to combine antifouling,
proactive condition monitoring,
inspection and proactive cleaning
as well as remote operation from
shore (HaNSa 04/2020). »The idea of
proactive measures is to capture the
fouling so that a collection of waste is
not even necessary. Therefore it is so
important to get a global definition of
proactive hull cleaning,« alexander
Enström, Hamburg-based Global Sales
director at Jotun, tells HaNSa during
the recent expert conference PortPiC in
Hamburg.
100% contentious cleaning may not
be realistic, he states, but proactive
cleaning definitely is. »We want to remove
the fouling in stage 1 or early stage
2 - and always well before it becomes a
This topic was discussed
at the high-level expert conference
PortPiC 2020 in Hamburg.
problem in terms of hull performance
and bio-security risk.«
aside from cleaning or replacing the
antifouling during dry-dockings, hulls
and propellers may be cleaned occasionally
in water while in service. However, at
this stage fouling is already a major problem.
in addition, manual cleaning by divers
is no longer permitted in a number
of ports. Many others are considering
banning such activities. That does make
following the international Maritime
organisation’s (iMo) biofouling guidelines
diffcult and is something that will
need to be addressed if controls become
mandatory.
a key aspect for a broader implementation
of proactive cleaning technologies
like this is the regulatory part in
ports.
to encourage the regulatory development,
Jotun initiated an »own« guideline.
The intent is to provide input to ports and
other jurisdictions facing requests for
proactive in-water cleaning of ships underwater
hull areas while in port or at anchorage.
The authors want to address key
points to consider, such as requirements
and how delivery on these requirements
is to be documented.
40 HaNSa – international Maritime Journal 01 | 2021