applied direct to
metal, over any
two-pack primer,
or as a topcoat
where it is effec-
tive in hiding
imper fections
due to the lower
gloss level.
The flexibility
of Hardtop Flexi
has been ascertained using the ASTM
522-93a conical-mandrel test. In this test,
coated sheet-metal panels are bent over
conical mandrels and the flexibility of the
coating determined from the diameters of
the mandrels at the points at which any
cracking starts. All such tests have con-
firmed the exceptional flexibility of
Circle 45 on Reader Service Card
Sigma Adds to its
Coatings Line
Sigma Coatings added another product
to its assortment that already includes
Sigma Phenguard and Sigmaguard CSF.
After use in non-marine applications such
as land based storage tanks, Sigma Coat-
ings launched the solvent free epoxy phe-
nolic tank coating Sigma Novaguard for
marine applications. Sigma Novaguard is
designed to offer increased chemical
resistance, while possessing the same
flow and edge coverage properties of the
Sigma solvent free product range.
The solvent free nature of Sigma Nova-
guard means that it is more environmen-
tally friendly than solvent based products
both in terms of VOC emission and health
and safety, with the solvent free nature of
Sigma Novaguard improving the working
conditions for the applicator as well as
reducing the explosion hazard.
Application can be carried out by brush
or roller for small areas and cold single
feed airless spray for large areas. Sigma
Novaguard can be applied to a dry film
thicknesses to 150 microns, enabling a
two coat system of total 300 microns to be
specified. Previously the minimum appli-
cation film thickness for a single coat sol-
vent free tank coating was in the order of
300 microns making the cost of coating
complex structures, which required two
coats to ensure good coverage, was in
some cases prohibitive.
Circle 47 on Reader Service Card
New Coating
Thickness Gage
The PosiTector 6000 gages by DeFel-
sko are designed to measure coating
thickness on both ferrous and non-ferrous
metals, quickly and accurately. Two-but-
ton operation and no calibration required
for most applications are designed to
allow the user to take basic measurements
or perform advanced functions easily.
Specialty features including average zero
(for rough substrates), automatic substrate
recognition, flip display and PA2 capabil-
ities.
Circle 48 on Reader Service Card
Handheld Ultrasonic
Corrosion Gauges
Panametrics-NDT, a business of R/D
Tech Instruments Inc. offers the new
MG2-XT and MG2-DL Ultrasonic Thick-
ness gages, primarily designed for inspec-
tors and maintenance engineers responsi-
ble for measuring the remaining thickness
of internally corroded pipes, tanks, and
ship hulls.
The gages offer two time-saving fea-
tures: Thru-Coat and Echo-to-Echo, both
of which eliminate the need to remove a
paint or coating. The patented Thru-Coat
technology uses a single backwall echo to
measure and separately display the thick-
ness of the coating and the remaining
metal, each adjusted for their correct
material sound velocity. The Echo-to-
Echo feature uses multiple backwall
echoes to measure true metal thickness.
Each unit is compatible with a complete
line of interchangeable dual element
transducers that vary in frequencies,
diameters, and temperature capabilities.
The splash proof, impact-resistant case
with sealed keypad makes these gages
durable tools in the harshest conditions.
Circle 50 on Reader Service Card
36 • MarineNews • March, 2005
Products
The Source for
Wholesale Marine Supplies
Phone: (732) 238-9434 Fax: (732) 238-8036
Toll Free: (800) 541-0577
South River, New Jersey
VikingTerminal.Com y Sales@VikingTerminal.com
Circle 258 on Reader Service Card
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RUBBER BUMPERS FOR VESSELS
IN - STOCK
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CYLINDRICAL / BOW
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MARITIME INTERNATIONAL, INC
PH: 866-265-5273 • Fax: 337-837-3610
Broussard, Louisiana Maritime-international.com
Email: sales@maritime-international.com
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