TDS
Int/Ext Silicone Modied Elastomeric Smooth Crack Filler
Siliconizer Crack Filler
™
RC-230
Description:
Siliconizer Crack Filler
TM
is a 100%
elastomeric styrene acrylic, silicone-modified
mastic, white and smooth for knife application.
Designed to seal any leak and bridge any crack
on smooth surfaces. A flexible mastic that will
adhere to any surface and fill cracks of any size.
Will not crack, peel or crumble even after
exposure to severe weather conditions.
Product Advantages:
• Spatula or knife grade
• Smooth finish
• To seal cracks and leaks
• 100% elastomeric
• For use with or without fabric mesh
• UV resistant and non-yellowing
• Paintable with latex or alkyd paints
• Mildew and moisture resistant
Uses:
Siliconizer Crack Filler™ is designed to seal all
types of cracks and leaks on any smooth
surface. Used on walls and roofs, around pipes
and penetrations in a building, around flashing
and broken tiles. Excellent for fixing expansion
joints and contained wall joints, sealing
plumbing or electrical intakes. To use on
concrete, drywall, wood and metal.
Notice: The technical data contained herein are
true and accurate to the best of our knowledge.
Published technical data and instructions are
subject to change without prior notice.
S.D.S.: Available upon request.
Surface Preparation:
All surfaces must be dry, clean, sound and free
of contaminants such as dirt, grease, chalk,
mildew, oil, concrete curing agents, laitance,
efflorescence, loose or badly cracked paint.
Remove all contaminants by washing surfaces
with an appropriate cleaner, sanding, scrapping
and/or using a pressure washing machine.
Use a Lanco
®
primer for surfaces like: concrete,
plasters, gypsum wallboard, drywall, wood,
plywood, steel, aluminum, galvanized steel,
other composition materials before application
of mastic.
Surface Application Recommendations:
Previously caulked surfaces: It is critical to
remove old sealant as possible before applying
new mastic, specially if it is cracked, eroded or
pulled away from the joint or crack.
Concrete surfaces: Mortar plaster, stucco and
concrete block must be cured and hard.
Remove any surface contaminant, form release
and curing agents or efflorescence, surface
must have a safe pH level under 9 prior to the
application. On new or existing concrete apply
one coat of Lanco
®
Roof & Wall Primer Sealer
AS-210 prior mastic application.
Previously painted surfaces: Old coatings that
are partially removed or loose by blistering,
rupture or scratching should be removed to
provide a sound surface. Sand any glossy
areas and dust clean, wipe away dirt, chalk.
Prime properly prepared concrete, wood,
plywood, composition materials and vinyl
siding with an appropriate Lanco
®
primer.
Mildewed surfaces: This product contains
agents to inhibit the mildew growth on the
dried film itself. Any existing mildew on the
surface must be completely killed and removed
prior to the application. Rinse completely and
let dry.
MPI: N/A
Green Performance1: N/A
Green Performance 2: N/A
VOC Compliant (<100 g/L): Yes
SCAQMD: N/A
AIM & OTC: N/A
Meets Requirements for:
TECHNICAL DATA SHEET
Product Type: Acrylic Resin
Finish: Smooth
Solids (%): 75 ± 2% by weight
64 ± 2% by volume
Weight/Gallon: 12.72 ± 0.05 lbs.
(5.77 ± 0.02 kg.)
Colors: White
Drying Time:
To touch: 15 - 30 min.
To coat (latex paint): 2 - 4 hrs.
To coat (alkyd paint): 20 - 24 hrs.
Coverage:
Theoretical: Up to 1,020 ft.
2
per
gallon @ 1 mil
Recommended: 40-50 ft.
2
/gal.
(4.6-7.4 m
2
/gal.) @
30 thick mils
Sizes: 5 gallons
1 gallon
1 quart
Thinning: Is not recommended.
Flash Point: Non-flammable
Viscosity: 425,000-500,000 CPS
Percent Pigment
by Weight: 54 ± 2%
VOC: <1 g/L
Technical Data:
Additional Information:
Caution: Harmful if swallowed. Contains acrylic resin. In case of eye contact,
flush thoroughly with water. Do not rub eyes. In case of skin contact, flush
area immediately with clean water. If swallowed, do not induce vomiting.
Consult a physician immediately. Use only with adequate ventilation.
Adequate ventilation required when sanding or abrading the dried film.
Always use (NIOSH/MSHA TC21C or equivalent.) Goggles are
recommended while handling the product. This product may contain
chemicals known to the State of California to cause cancer and birth defects
or other reproductive harm. Keep out of reach of children.
Warning! If you scrape, sand, or remove old paint, you may release lead
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.
Clean up carefully with a HEPA vacuum and a wet mop. Before you start,
find out how to protect yourself and your family by contacting the National
Lead Information Hotline at 1-800-424-LEAD or log on to
www.epa.gov/lead. For chemical emergency call ChemTrec
1-800-424-9300. Protect from freezing.
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