Technical Specifications
EPOXY
TECHNICAL DATA
RO-139
HIGH PERFORMANCE
9100 SYSTEM DTM EPOXY MASTIC
2
Form: ARJ-1503
Rev.: 071320
COMPANION PRODUCTS
RECOMMENDED PRIMER
9100 System DTM Epoxy Mastic is self-priming and can be
used without a primer in mild to moderate exposures. The use
of a primer is required in severe exposures and on heavily
rusted surfaces.
NOTE: 9100 System may be used as a primer for High
Performance topcoats. For best results, use the 331254
Satin Activator.
COMPATIBLE TOPCOATS
5
3100 System Speedy-Dry DTM Acrylic Enamel
3300 System Acrylic Aliphatic Urethane
3700 System DTM Acrylic Enamel
3800 System DTM Acrylic Enamel
9400 System High Gloss Polyester Urethane
9700 System 250 VOC Acrylic Polyester Urethane
9800 System DTM Urethane Mastic
5
Do not use any topcoat over 9115402 Aluminum. The 9115 Aluminum should
only be topcoated with itself
.
PRODUCT APPLICATION
SURFACE PREPARATION (cont.)
ALL SURFACES: Remove all dirt, grease, oil, salt and
chemical contaminants by washing the surface with Krud
Kutter
®
Original Cleaner Degreaser or other suitable cleaner.
Rinse with fresh water and allow to dry.
STEEL: Hand tool (SSPC-SP-2) or power tool (SSPC-SP-3)
clean to remove loose rust, scale, and deteriorated previous
coatings to obtain a sound rusted surface. For optimum
corrosion resistance, abrasive blast to commercial grade
SSPCSP-6, with a blast profile of 1-2 mils (25-50 µ).
STEEL (IMMERSION): Abrasive blast clean to a minimum
SSPC-SP-10 Near-White Grade (NACE 2) and achieve a
surface profile of 1.5-3 mils. All weld spatter must be removed
along weld seams, rough welds should be ground smooth,
and all sharp edges should be ground to a smooth radius.
PREVIOUSLY COATED: Previously coated surfaces must be
sound and in good condition. Smooth, hard, or glossy finishes
should be scarified by sanding or sweep blasting to create a
surface profile. The DTM Epoxy Mastic is compatible with
most coatings, but a test patch is suggested.
GALVANIZED METAL: Remove oil, dirt, grease and other
chemical deposits with Krud Kutter Original Cleaner
Degreaser or other suitable cleaner. Remove loose rust, white
rust or deteriorated old coatings by hand or power tool
cleaning or brush off blasting. Rinse thoroughly with fresh
water and allow to fully dry.
CONCRETE OR MASONRY: New concrete or masonry must
cure 30 days before coating. Any concrete surface must be
protected from moisture transmission from uncoated areas.
Remove all loose, unsound concrete.
PRODUCT APPLICATION (cont.)
SURFACE PREPARATION (cont.)
CONCRETE FLOORS: Remove laitance and create a surface
profile by either acid etching with Rust-Oleum 108402
Cleaning and Etch Solution, or by grinding. If etching, consult
with 108 Clean & Etch Solution Technical Data Sheet for
complete application instructions. Rinse thoroughly and allow
to dry. The concrete must be fully dry prior to coating
application. After etching, the concrete should have a texture,
which resembles fine grit sandpaper. Repeat the process if
necessary. Surface sealers and curing agents must be
removed by grinding. Vacuum to remove fine dust and debris.
The floor should be dry and dust free prior to application.
Previously coated floors need to be in good condition with
proper adhesion to the concrete substrate.
APPLICATION
Airless spray is the preferred method of application. However,
brush, roller, or air-atomized spray may also be used. Refer to
table for thinning recommendations. For proper performance,
a dry film thickness of 5-8 mils per coat is required. Excessive
brushing or rolling may reduce film thickness. Apply a second
coat if necessary to achieve the recommended film thickness.
Use the Standard Activator or Fast Cure Activator at air
temperatures between 50-120°F (10-49°C) and when the
surface temperature is at least 5°F (3°C) above the dew point
and less than 120ºF (49ºC). Low curing temperatures and/or
condensation on the film while curing can affect appearance
in the form of an amine blush. This can generally be removed
with soap and water; however, in a case of extreme blushing,
the performance of the coating may be slightly affected.
NOTE: The Fast Cure Activator may also be used in water
immersion. Allow 7 days for full cure prior to beginning
immersion service.
Use the Low Temperature Activator. when application
temperatures are between 40-60°F (5-15°C) and when the
surface temperature is at least 5°F (3°C) above the dew point,
Do not apply the material if the temperature is expected to fall
below 40°F in the first 24 hours of cure. At 40°F, full cure will
be achieved in 7 days.
Use the Immersion Activator for water immersion service at
air and surface temperatures between 60-100°F (15- 38°C).
Apply when the surface temperature is at least 5°F (3°C)
above the dew point, and when relative humidity is below
85%. Do not use the Immersion Activator with tint bases. This
system may be used for both salt and fresh water; do not use
for the inside of potable water tanks. Apply two coats
alternating color between coats to ensure complete hide.
Allow 7 days cure after application of the second coat before
immersion.
NOTE:
Do not use tinted colors in water immersion.