GLOBIC
For the bottom line
The HEMPEL Group’s Head Office:
HEMPEL A/S
Lundtoftevej 150
DK-2800 Lyngby
Denmark
Tel: +45 45 93 38 00
Fax: +45 45 88 55 18
Use anti-fouling products safely.
E-mail: globic@dk.hempel.com Always read the label and product
http://www.hempel.com information before use.
Long time no see
Break-through fibre TECHNOLOGY
Clear conscience through clean ENVIRONMENT C O N T E N T S
Better operating FIGURES
Revolutionary antifouling
– documented advantages
GLOBIC – exceptional protection
GLOBIC is a high-performance, self-polishing and self-
smoothening, 2003-compliant TBT-free antifouling with a
radically new fibre composite structure. It is revolutionary not
only because the fibres incorporated into the paint provide
exceptional mechanical strength, but also because of the
improved level of polishing control, which ensures maximum
protection under even the most severe fouling conditions.
GLOBIC – extensively used
The new GLOBIC antifouling is the culmination of years of
research and development into finding the perfect TBT-free
solution. It is used on many types of vessel, including
container ships, oil tankers, bulk carriers, car carriers, ferries,
naval vessels and general cargo ships. Its excellent
performance is due to the controlled polishing rate,
optimum release of powerful antifouling agents and efficient
self-smoothening, as well as the excellent anti-cracking and
anti-peeling properties that eliminate risk of delamination.
GLOBIC – for the bottom line
The results verify that GLOBIC has a positive effect on the
bottom of the ship, on the bottom of the sea and – last but
not least – a positive effect on the financial bottom line.
TECHNOLOGICAL
Break-through fibre
TECHNOLOGY
HEMPEL maintains a constant focus on new technologies, zinc carboxylate polymer salt binder technology.
not least in order to meet the demands of future legislation. Incorporating such fibres into rosin-based paints removes
The break-through fibre technology used in GLOBIC anti- the problem of the rosin becoming brittle. The fibres also
fouling is a result of on-going research and development mean that greater amounts of rosin can be added to ensure
work and HEMPEL has taken out a world-wide patent on this the full range of variation in the polishing rate. The
unique solution. traditional trade-off between polishing performance and
The strength of fibre-reinforced materials for use in yacht mechanical strength no longer applies. Thereby it has
hulls, car fenders, tennis rackets, fishing rods and similar been possible for us to provide a range of self-polishing
items is well known and much appreciated. However, the and self-smoothening products with different polishing
idea of using microfibres to reinforce antifouling coatings is rates. All these GLOBIC products feature excellent
relatively new, made possible by the use of hydrolysable mechanical strength and the same ease of application.
Udstans
The bottom line is: High performance fouling control • Exceptionally strong anti-crack paint film even under
All the benefits of natural rosin,
but none of its weaknesses …
Binder alternative to natural rosin Synthetic substitute
One of the key ingredients in the old TBT- A synthetic substitute to natural rosin has been developed,
free paints is rosin, a natural product. and this compound has all the benefits of natural rosin, but none
The main and most important advantage of its weaknesses. The quality is consistent, the oxidation
of rosin is that it has just the right sensitivity has been removed, and it has excellent seawater
degree of solubility in sea water to control the polishing of the solubility. In addition, the synthetic substitute has been
formulated product. This means that it is possible to provide reacted into a zinc/copper carboxylate binder. On immersion
products with excellent polishing properties. However, because in seawater, it goes through an ion exchange process to form
of the brittle nature of rosin, there is a limit as to how much the more soluble sodium carboxylate binder, which gives
can be added before the mechanical properties of the paint are the excellent polishing control
damaged – which results in cracking and peeling between resulting in self-polishing and self-
layers (see fig. 1-1a with impact tests). Another limitation relates smoothening effects. (The illustration
to the fact that rosin is a natural compound extracted from shows the ion exchange process.
trees. The type of tree from which the rosin is collected plays = Sodium. = Zinc/Copper.)
a very significant part in its chemical make-up. The isomeric
distribution and amounts of impurities vary from tree to tree Fibre technology
depending on the soil and weather conditions. This variable The strength of fibre-reinforced material is widely appreciated
chemical make-up can lead to an unpredictable performance. for use in building yacht hulls, car fenders, tennis rackets,
In addition, part of the chemical framework of rosin is strongly fishing rods, etc. However, the idea of utilising microfibres
susceptible to oxidation if left in the atmosphere for prolonged to reinforce antifouling coatings is completely new.
periods. This can lead to a weakness in the mechanical Incorporating such fibres into antifouling paints not only
properties of the rosin and subsequent variation in the quality of increases the mechanical strength of the paint film, but
the antifouling paint. Hence a choice had to be made between also allows the addition of greater amounts of binder,
either obtaining acceptable mechanical properties or a high which provides a full range of variation in the polishing rate.
polishing rate. In most of the old TBT-free polishing paints a The traditional trade-off between polishing performance and
compromise has been made as to the amount of rosin used, mechanical strength (see fig. 2-2a) no longer applies, and it
and this limits the polishing capacity. A low polishing rate leads becomes possible to provide a range of products with
to the development of a thick leached matrix, which delays the different polishing rates and excellent mechanical
transportation of fresh antifouling agents to the surface, strength, as well as the same ease of application. HEMPEL
effectively limiting the lifetime of the antifouling protection. has taken out worldwide patents on this unique solution.
Good Good Good Compromise in older Good Good Addition of fibres to paint Good
polishing mechanical polishing TBT-free technology mechanical polishing mechanical
properties properties properties
Limited Limited Limited
polishing polishing polishing
Poor Poor Poor
No Level of mechanical No Level of mechanical No Level of mechanical
polishing functional binder properties polishing functional binder properties polishing functional binder properties
Fig. 2. Illustrates how the amount of functional binder (in this case rosin) compromises Fig. 2a. Illustrates how, with the use of a
either polishing performance or mechanical strength in older TBT-free technology. synthetic alternative to rosin and with the addition
of microfibres, neither polishing performance nor
mechanical strength are compromised.
severe impact • Optimum release of powerful antifouling agents for long term protection ...
Fig. 1: Impact test – Fig. 1a: Impact test – Antifouling paints with Fig. 3: Illustrates the
conventional TBT-free GLOBIC. The impact microfibres provide excellent recoating
paint. The impact resistance is tested by strong paint film and a properties. 8 dry-
resistance is tested by dropping a weight from full range of variation dockings have been
dropping a weight from increasing heights. The in polishing rate. emulated without the
increasing heights. impact test results use of a tie coat.
illustrate improved
mechanical strength.
Mechanical strength regulations, is designed to accommodate all normal
The combination of advanced technology binders and combinations of vessel speed and types of operation.
microfibres creates excellent mechanical properties for
GLOBIC products. GLOBIC antifouling is flexible and at the Overcoating
same time probably the 2003-compliant antifouling paint with GLOBIC products enable repeated
the highest mechanical strength on the market today. recoating without the need for a tie coat.
Figure 3 shows the result of eight layers
Controlled polishing of recoating. The key is the unique
One of the most significant results of our combined practical combination of microfibres and advanced technology binders.
experience over the last seven years is the improvement in GLOBIC also has excellent overcoating properties in relation
the balance between polishing properties and mechanical to all commonly known TBT-based antifouling systems and
strength compared with the conventional TBT-free products HEMPEL’s TBT-free antifouling systems (e.g. OCEANIC and
(see fig. 2). Due to their excellent self-polishing and self- OLYMPIC). This overcoating can be carried out without using
smoothening properties, GLOBIC products do not build up a tie coat. Some TBT-free antifouling systems require a tie
an excessive leached matrix. The GLOBIC range of anti- coat to avoid reduced performance due to absorption of
fouling products, which are fully compatible with the 2003 binder and active ingredients into the old antifouling system.
Polishing rate GLOBIC variant Type of operation
High polishing GLOBIC 81900 Coastal
Medium polishing GLOBIC 81920 Deep-sea – bulk, cargo
Low polishing GLOBIC 81950 Deep-sea – high activity, high speed
Very low polishing GLOBIC 81970 Deep-sea – very high activity, very high speed
6
ENVIRONMENTAL
Clear conscience with a clean
ENVIRONMENT
In order to provide our customers with paint that is both also been replaced by a new organic reinforcing antifouling
economical and environmentally responsible, and to meet agent with an excellent environmental profile. This antifouling
the demands of future legislation, HEMPEL constantly agent begins exerting the desired effect on marine
focuses on developing new technologies. organisms as soon as it is released, subsequently
GLOBIC is HEMPEL’s supreme solution to the international degrading by more than 50% in less than one hour.
ban on TBT application. Compared with other 2003- We believe that antifouling can make a positive contribution
compliant TBT-free products, GLOBIC has the highest to a good environmental balance, and with the GLOBIC range
solids content of all, which means less use of costly we believe that we have created our most environmentally
solvents and less pollution. The biocidal effect of TBT has friendly antifouling ever.
Udstans
The bottom line is: Reduced fuel consumption • Rapid degradation in the marine environment (half-life of less
Less use of costly solvents
and less pollution …
The IMO 2003/2008 decision Active ingredients
Due to concern over the use of TBT-based antifouling The biocidal effect of TBT has been replaced by a new
products in the marine environment, new regulations organic reinforcing antifouling agent with an excellent
now demand that antifouling paints must have as environmental profile, which is effective on target
little environmental impact as possible. In 1990, the organisms as soon as it is released, subsequently
International Maritime Organization (IMO) first degrading by more than 50% in less than one hour.
became officially involved in this issue, and in October
2001, the IMO decided to ban organotin (i.e. TBT). Antifouling products and the environment
According to the regulations, the application of TBT- Antifouling products are necessary because fouling
based products is to be phased out and the use of on a ship increases the resistance caused by its
TBT-based products on hulls is to cease from movement through the water. This increased
1 January 2008. After this date, all hulls with TBT- resistance results in higher fuel consumption,
based antifouling systems are to have the paint which is detrimental to both the environment and
sealed or removed by abrasive blasting. the operating costs.
It is estimated that a fouled hull costs up to 40%
Tin-free/TBT-free more in fuel than a clean hull. For the entire world
The GLOBIC range of antifouling products complies fleet, this means 70 million tonnes of fuel are saved
with the IMO convention from October 2001, which every year. Saving 70 million tonnes of fuel also
banned the use of organotin (i.e. TBT) in antifouling means preventing the release of 210 million tonnes
paints. The correct expression is therefore TBT-free. of CO2 and 5.6 million tonnes of SO2 into the
However, words like tin-free and 2003-compliant are atmosphere. We believe antifoulings have a value
often used when speaking about the new antifouling for the environment and, with the self-polishing and
products that comply with the IMO convention. self-smoothening GLOBIC range, we believe, we
have created the most environmentally friendly
Low level of volatile organic compound antifouling products so far.
GLOBIC features a very high level of solids (57-60%,
depending on the GLOBIC variant). This corresponds
to a Volatile Organic Compound (VOC) content of
less than 400g/litre (a figure that is relevant for Emission (5,000 m2 2x150 microns DFT)
application of antifouling paints in the USA). This high Tonnes VOC
2.50
volume solids compares very favourably with other 2.00
TBT-free products on the market. In addition, the 1.50
1.00
emission of solvents into the atmosphere is almost 0.50
50% lower with GLOBIC compared with a product that 0.00
40% 45% 50% 55% 60%
only contains 40% of solids by volume. (Including 1.3 consumption factor) Volume Solids in paint
than one hour) • High solids content, which means less air pollution ...
The use of TBT-based products on Antifouling products save 70 million The biocidal effect of TBT has been
hulls is to cease from 1 January tonnes of fuel per annum and pro- replaced by a new organic reinforcing
2008, and after this date, all hulls tect the environment, preventing antifouling agent. This efficient and
with TBT-based antifouling systems 210 million tonnes CO2 and 5.6 targeted organic antifouling agent
are to have the paint sealed or million tonnes SO2 from has a very good environmental pro-
removed by abrasive blasting. entering the atmosphere. file, effective on marine organisms at
point of being released or leached,
thereafter quickly degrading.
10
FINANCIAL
Better operating
FIGURES
With the GLOBIC range of products, HEMPEL has created high volume of solids in the paint, and this represents an
an antifouling that represents a major technological immediate saving. In addition, the excellent self-smoothening
break-through. GLOBIC features such mechanical advantages properties of GLOBIC result in reduced fuel consumption
and environmental benefits that these alone place GLOBIC when the vessel is in operation. When recoating is necessary,
among the most effective antifouling paints currently GLOBIC is easy to apply, with no need for a tie coat, and it
available. But GLOBIC is also the absolute first choice can be applied in relatively high film thicknesses. All these
because of the notably good operating costs. With GLOBIC, factors have a positive effect on operating economics – and
up to 35% less antifouling paint is needed due to the very are reflected directly in bottom line results.
Udstans
The bottom line is: Reduced fuel consumption due to excellent self-smoothening properties • Easy recoating wit
The most effective antifouling
paints currently available …
Low paint consumption Applying
GLOBIC is
GLOBIC has a very high volume solids level (57- fast and
easy.
60%). This must be considered when comparing
the new technologies associated with TBT-free
antifoulings, where specifications are often similar.
For example, the total paint volume of GLOBIC is 30-35% less than the
GLOBIC
total paint volume needed for a product with 40% of solids by volume and polishing
the same DFT specification. pattern.
Specifications
When deciding on the antifouling system for a particular vessel, it is
important to remember to compare volume solids. The many new TBT-
free antifoulings are based on different technologies and therefore have
different volumes solids. An easy price comparison can be made using
this formula: GLOBIC
polishing
pattern.
Price
= Price for 100% dry paint
Volume solids %
Number of coats
GLOBIC products can be applied in relatively high thicknesses, which GLOBIC
polishing
makes it possible to reduce the number of coats applied. Two coats are pattern.
sufficient in cases where three coats would usually be necessary, or
three coats in situations where other antifoulings sometimes require four
coats.
Applications
Throughout the 1990s, HEMPEL tested a variety of new TBT-free
technologies and the resultant products were applied to several
thousand vessels. The finalised product, which included the full range of
improvements, was first applied in 1995, and resulted in a launch of the
full range of GLOBIC products in 2000. More than 1,500 vessels have
subsequently been treated with GLOBIC antifouling products – and the
list is growing by the day.
th no need for a tie coat
Reduced hull roughness
The influence of antifouling paint on fuel consumption
has been discussed extensively. Due to improved
fouling control, the arrival of the new self-polishing
technology on the market twentyfive years ago was
followed by a significant improvement in fuel
economy. The relationship between the average hull
roughness and fuel consumption, however, is more
complicated. Factors such as overlapping of sprayed
applications, mechanical damage and corrosion
account for up to 1000 microns in terms of macro-
roughness values of the hull, compared with the
inherent micro-roughness values of the paint, which
are just a few microns. Sandblasting decreases
macro-roughness and thereby reduces fuel
consumption by up to 20%, while the application of
self-smoothening paint reduces the micro-
roughness and results in a further saving of 1-3%.
Average Hull Roughness
600 um/50mm
500
400
300
200
100
1 2 3 4 5 6 7 8 9 10 11 12 13 Years in
service
The measured values of Average Hull Roughness of
different vessels.
+60.00000
Self polishing
TBT-based –60.00000
1.05
um
0.00
0.00 mm 1.40
+60.00000
GLOBIC
–60.00000
1.05
um
0.00
0.00 mm 1.40
Surface topographics comparing the micro-roughness of self-
polishing TBT-based paints with GLOBIC.
14
Further information and full documentation
GLOBIC products represent a new era in 2003-compliant self-polishing technology, and a great
improvement on conventional TBT-free antifoulings. GLOBIC is a full range of antifouling products
developed to provide optimum, long-lasting fouling protection for ships operating at different speeds
and levels of activity, on different kinds of routes and with varying dry-docking intervals. Further
information and full documentation relating to GLOBIC products are available at www.hempel.com.
: WWW
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