One of the most important aspects of a successful
coating application is the ability of the applicator to successfully
transfer the coating from the container to the surface. This
guide has been prepared to assist the applicator in achieving
that goal.
SUBSTRATE AND SURFACE PREPARATION
Proper surface preparation is paramount
to the successful application of an industrial coating. The better
the surface preparation, the better and longer lasting the performance
of the coating.
Remove all oil, grease, dirt, soil, salts
and contaminants from the surface to be coated.
Soluble salts and emulsifiable contaminants are best removed
with pressurized water and specialized detergents.
Steel surfaces should be prepared to SSPC-SP
2 or SSPC-SP 3
Any remaining abrasive media must be removed from the surface.
Coating performance will be compromised if applied over any residual
media. A thorough vacuuming of the abraded surface is recommended.
If used over lead or asbestos materials all applicable state
and federal regulations for proper surface preparation and encapsulation
must be followed
APPLICATION EQUIPMENT
IAG Multi-Functional: Conventional airless
equipment 30:1 min pump ratio generating minimum operating pressure
of 3000 p.s.i. .013 -.030 Tip Size 20° to 40° Fan Angle
depending on section being sprayed
IAG Fire Retardant: 3500 - 4000 p.s.i. .037 tip with 4"
to 6" fan conventional airless 68:1 or 74:1 pump with ram
platie.
Brush or roller
MIXING
Proper mixing is critical for achieving
a consistent and uniform coating.
Any unmixed resin or hardener will not
cure properly! Only adequate mixing will result in a successful
coating.
AMP is a two-part system. Pour entire contents of Hardener part
B into the Resin part A container. Mix with a ½"
drill equipped with an industrial paddle. Mix at medium speed.
Scrape the sides and bottom of the container and fold coating
into itself and continue to mix until a homogenous mixture is
obtained.
For best results, transfer entire contents into a clean container
scraping bottom and sides of original container and repeat above
mixing procedure.
APPLICATION PROCEDURES
Airless Spray: A single coat built up with
a number of quick passes allows greater control over quantities,
thickness and finish. In certain conditions it may be advantageous
to apply multiple thin coats rather than one thick coat. However,
it is necessary to ensure that the first coat is dry before applying
additional coats
For brush application, a fully loaded brush should be used. A
laying on stroke should be used.
A short- nap or foam roller may be used.
Application rates at an ambient temperature of 70°F Airless
Spray 60 mils WFT Brush/Roller 14 mils WFT
Surface temperature should be a minimum of 5°F above dew
point. Protect uncured AMP coating from moisture, rain or running
water until the coating is completely dry.
AMP has a theoretical pot life of 60 minutes @ ambient temperatures
(25°C/50RH).
THICKNESS MEASUREMENT
During application, wet film thickness
should be checked with a wet film gauge. Insert the teeth into
the wet coating. The last tooth coated indicates the thickness
achieved. Recommend minimum of 25 mil thickness.
AMP contains no solvents and does not exhibit any appreciable
shrinkage. WFT should be equal to DFT.
CURING SCHEDULE
Drying times are dependent upon a number
of factors.
Temperature
Air Movement
Humidity
Thickness of AMP
Method of application
Anticipate a full cure time of 48 hours at 25°C.
AMP can be over coated with itself as soon as the previous coat
has dried. Based on airless spray application at ambient temperature
and 50% humidity, 18 hours is the recommended time before over
coating.
CLEANUP
Pump, mixer and hose should be cleaned
according to the equipment manufacturers specifications. AMP
can be cleaned with conventional solvents such as acetone or
isopropyl alcohol.
STORAGE, HANDLING & SAFETY
AMP, like most epoxy compounds, possesses
the ability to cause skin and eye irratation upon contact. Certain
individuals may also develop an allergic reaction after exposure
(skin contact, inhalation or vapors, etc.) which may manifest
itself in a number of ways including skin rashes and an itching
sensation. Handling this product at elevated temperatures may
also generate vapors irritating to the respiratory system. Always
read material safety data sheets before using these or any other
chemicals.
Store product in a dry and clean environment
in original unopened containers. Recommended storage temperature
is between 50° and 80°F.
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