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DESCRIPTION
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CORRO-DUR 561SW a cost effective version of the
standard Corro-Dur 561 which is able to displace water from wet surfaces in
order to make a permanent bond.
The formulation is solvent-free to ensure safety and maximum
technical performance. *
Kevlar™
fibers are incorporated for reinforcement and better viscosity management
to achieve high application rates and excellent film build - even
underwater! (Not recommended for environments with pH level below 4)
CORRO-DUR
561SW provides permanent protection even under the most adverse conditions
The formula is uniquely field-friendly and uses advanced low toxicity
ingredients. All Colors including White are available & can be shipped
“Non regulated” By USDOT, IAT IMO
*trademark
of E.I.DuPont Nemours Co.
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USES
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ANTICORROSIVE COATING
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Splash zone, Spot repairs
above and below water, Heavy duty protective coating for steel and concrete.
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REPAIR COMPOUND
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Patching, leak sealing, etc.
under all conditions or as load transfer agent with our Corro-Wrap
composite pipeline riser / pipe rehabilitation system.
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WASTEWATER
TREATMENT
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Reinforcing,
smoothing and protecting worn concrete damaged by exposure to chemical or
municipal waste systems.
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ADHESIVE
MORTAR
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In
dry, wet or submerged conditions.
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FAIRING
COMPOUND
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Rough
steel and concrete exposed to erosion.
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APPEARANCE
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COLORS
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Black,
White, Gray, other colors available ( slight yellowing )
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FINISH
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Glossy.
Textured surface
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PHYSICAL
PROPERTIES
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VEHICLE TYPE
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Epoxy/Aliphatic
Polyamines
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PIGMENTATION
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Color/
Inert/ Fibrous reinforcement
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THINNER
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Not
required
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CLEANER
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M.E.K
or Lacquer thinner
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MIXING
RATIO
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1 :
1 by volume
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INDUCTION TIME
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Not
required – maybe used immediately after mixing
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POT LIFE
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Approx.
45 minutes @ 77°F (25°C)
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SOLIDS BY VOLUME
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100%
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THEO.SPREAD RATE
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40sq.ft./gal.@40
mils thickness
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REC. DRY FILM
THICKNESS
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30 –
60 mils (762-1, 524 microns)
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REC. WET FILM
THICKNESS
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30 –
60 mils (762 – 1, 524 microns)
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DRY TIME (TOUCH)
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Approx.
5 Hrs @ 77°F (25°C)
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DRY
TIME (HARD)
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12 Hours
handling, 24 hours light service @ 77°F (25°C)
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APPLICATION
METHOD
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Trowel,
Straight edged spreader, Mitts, rollers, brushes
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VOC
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Essentially
Zero
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SAFETY
INFORMATION
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FLASH
POINT
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Over
212°F (100°C)
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STORAGE
CONDITIONS (Shelf Life)
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24
months under normal storage conditions
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SURFACE
PREPARATION
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Underwater
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Remove marine
biological settlement and corrosion by high pressure water jetting or similar
methods with or without abrasive injection. Conventional air/abrasive
blasting works well at shallow depths however efficiency falls off
sharply below about 10ft. Hand held power tools such as grinders or
needle guns will give good results if applied conscientiously in small
areas but will be inadequate in large areas. Plan to apply the CORRO-DUR
561 within 30 - 45 minutes of surface preparation to minimize rerusting
or initial settlement of fouling which can interfere with initial
adhesion. Conventional abrasive blasting using air abrasive or
centrifugal blasters are preferred methods of surface preparation in most
cases where oily or greasy contamination is not a problem.
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Above water
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Preparation requires
similar high pressure water blasting or dry abrasive blasting to yield a
firm, granular surface free of loose contamination.
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MIXING
PROCEDURE
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CORRO-DUR 561SW is
supplied in either 2 gallon (7.6 liters) or 4 gallon kits of 2 x 1 or 2 x 2 gallons respectively
each of epoxy base and curing
agent. These components are formulated in contrasting colors to facilitate
complete mixing. “Black” CORRO-DUR 561 SW for example is supplied with a
jet black epoxy base and an off-white curing agent which mix together to
yield a black mixture, visible streaks of either black or white seen during
the course of mixing indicate “hotspots” unmixed components.
Remove equal quantities of base and curing agent from
their cans and place them side by side on a plastic, fiberboard, etc.
Mixing is easily accomplished by folding the components into each other
using a spatula or piece of wood. Once the mixing begins there will be
about 45 minutes of working time available at 80°F. This time may be
extended by keeping the components and mixture cool, send the mixed
material underwater as quickly as possible rather than leaving it on a hot
deck.
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APPLICATION
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Underwater
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Take the mixed CORRO-DUR 561SW underwater in a can or bucket, it
will free up a hand to have a hook on a belt to hold the can during painting
especially if visibility is poor and a lantern has to be carried. Application tools such as broad
putty knives or plastic straight-edged glue spreaders works well on most
surfaces. Painters’ mitts
works well on small diameter tubular sections such as risers. CORRO-DUR 561SW is resistant to
the effects of wave application during curing and will be found to be
easier to apply than traditional
‘splash zone ‘ compositions and much less messy than lower
viscosity underwater “paints”.
CORRO-DUR 561SW has a strong tendency to stick to underwater
surfaces and expensive diving equipment should be protected using plastic
suits or sacks to cover exposed surfaces.
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Above water
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Apply using an appropriate
tool such as a spreader or short, stiff brush if the surface is
especially rough.
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CURING BEFORE SERVICE … CORRODUR 561 SW may be immersed
in fresh or salt water immediately after application. It will cure to a
hard film within 14 hours. Note:
CORRO-DUR 561 SW is especially designed for underwater application and service , if a hard, chemical
resistant material is required use standard CORRO-DUR 561 which has
extremely good resistance to physical abuse and most industrial chemicals.
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TEMPERATURE
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CORRO-DUR 561 SW may be applied in temperatures as low as 45° (7°C)
- curing will be slow, however the viscosity of the material will still be
workable. Temperature will
exert a considerable influence on the rate of curing of chemically cured
coatings such as CORRO-DUR 561.
In broad terms expect each 10°C, (18°F), rise or fall in temperature
to half or double dry times and pot lives.
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TRANSPORTATION
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USDOT, IATA & IMO "Non-Regulated"
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