Technical Specifications
TECHNICAL DATA
9100 SYSTEM DTM EPOXY MASTIC
2
Form: CS515
Rev.: 120312
.PRODUCT APPLICATION .
ALL SURFACES: Remove all dirt, grease, oil, salt and
chemical contaminants by washing the surface with Pure
Strength® Cleaner/Degreaser item #3599402 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
SSPC-SP-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 wield 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 High Performance Industrial DTM Epoxy
Mastic is compatible with most coatings, but a test patch is
suggested. WARNING! If you scrape, sand or remove old
paint from any surface, you may release lead paint dust.
LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE
SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE,
ESPECIALLY IN CHILDREN. PREGNANT WOMEN
SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-
approved respirator to control lead exposure. Carefully clean
up with a wet mop or HEPA vacuum. Before you start, find out
how to protect yourself and your family by contacting the
U.S.EPA/Lead Information Hotline at 1-800-424-LEAD or log
onto www.epa.gov/lead.
GALVANIZED METAL: Remove oil, dirt, grease and other
chemical deposits with Pure Strength® Cleaner/Degreaser
item #3599402 or other suitable cleaner. Remove loose rust,
white rust or deteriorated old coatings by hand or power tool
cleaning or brush off blasting. Rinse throughly 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. Remove laitance and
create a surface profile by either acid etching with Rust-
Oleum 108402 Cleaning and Etch Solution, or by grinding.
Surface sealers and curing agents must be removed by
grinding.
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.
.PRODUCT APPLICATION (cont.) .
Use Industrial DTM Epoxy Mastic with 9101402 Standard
Activator or 9104402 Fast Cure Activator at air and surface
temperatures between 50-100°F (10-38°C) and when the
surface temperature is at least 5°F (3°C) above the dew point.
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.
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 dewpoint, use Industrial DTM Epoxy Mastic with the
9103402 Low Temperature Activator. 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.
For water immersion service, use Industrial DTM Epoxy Mastic
with the 9102402 Immersion Activator. Do not use the 9102402
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 at air and surface temperatures between 60-
100°F (15-38°C), when the surface temperature is at least 5°F
(3°C) above the dew point, and when relative humidity is below
85%. Apply two coats alternating color between coats to ensure
complete hide. Allow 7 days cure after application of the second
coat before immersion.
NOTE: The 9104402 Fast Cure Activator may also be used in
water immersion. Allow 7 days for full cure prior to beginning
immersion service. Do not use tinted colors in water immersion.
NOTE: If using an activator other than 9101 Activator and curing
time exceeds 72 hours, the surface must be scarified by sanding,
or other method, prior to application of an additional coat or other
finish coating.
Pools
When used with 9102402 Immersion Activator, the Industrial
DTM Epoxy Mastic premix bases can be used as a pool coating
over existing epoxy pool coatings, new bare concrete, plaster,
gunite, and fiberglass. The pool must be completely empty and
dry before coating. After pool is emptied, this typically requires 7-
10 days depending on temperature and humidity. To test the
dryness of concrete, gunite or plaster pool surfaces, securely
tape a 2 ft. by 2 ft. piece of clear plastic onto a horizontal and
vertical surface at the deep end of the pool. Check after 24
hours. If water condensation is visible under the plastic, this is an
indication that the surface is not completely dry, and NOT
suitable for coating. Allow additional dry time and retest. Follow
surface preparation, mixing and application instructions. Avoid
painting in midday sun. Application is recommended early in the
day or late in the afternoon when at least 2 hours of sunlight
remain after completion of the job. Allow minimum of 5-7 sunny
days cure before filling pool. Early contact with water can cause
premature fading, chalking and blistering. Super chlorinated
water can cause a bleached out look. Sunlight and UV will cause
chalking and fading. Do not use over: 1) chlorinated rubber, 2)
synthetic rubber, 3) vinyl, 4) acrylic. See Note in Performance
Characteristics Section on Page 3.