Version: Jan.
16, 2012
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ap 1 K
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Corrosion-Inhibiting
Coating for Reinforcing
Steel
CORROSION ™
INHIBITOR
ENH
ANCED
DESCRIPTION INDUSTRY STANDARDS AND APPROVALS
Mapefer 1K is a one-component anti-corrosion coating based on unique LEED Points Contribution LEED Points
polymers, cementitious binders and corrosion inhibitors. Mapefer 1K is specially MR Credit 5, Regional Materials*......................................... Up to 2 points
formulated for application on clean reinforcing steel to inhibit oxidation and rust IEQ Credit 4.2, Low-Emitting
formation. Materials – Paints & Coatings..........................................................1 point
*Using this product may help contribute to LEED certification of projects in
FEATURES AND BENEFITS the categories shown above. Points are awarded based on contributions of all
project materials.
• High in density and alkalinity, Mapefer 1K offers excellent resistance to
chloride penetration, carbon dioxide penetration and pollutants. WHERE TO USE
• Meets or exceeds performance of alternate three-component anticorrosion • For corrosion-inhibiting protection of reinforcing steel in concrete
products, when tested at ASTM B117 standards restoration
• Excellent workability with long pot life and extended open time
• Allows application of repair mortars for up to 14 days after application of LIMITATIONS
Mapefer 1K • Use between temperatures of 45°F and 95°F (7°C and 35°C).
• Mapefer 1K brushed or oversprayed on concrete and masonry surfaces will • Do not add cement or aggregates to Mapefer 1K.
not act as a bond breaker.
• Apply Mapefer 1K to reinforcing steel immediately after removing rust and
cleaning, to prevent further corrosion.
• In hot weather, do not expose the mixed material to direct sunlight during
application and curing, as the pot life could be shortened.
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pef SUITABLE SUBSTRATE CURING
Ma 1K
• Clean reinforcing steel Protect from high winds during cure. No curing compound is
Consult MAPEI’s Technical Services Department for required.
installation recommendations regarding substrates and
conditions not listed. CLEANUP
While still fresh, remove Mapefer 1K from brushes and tools
SURFACE PREPARATION with water. Once hardened, it can only be removed only
mechanically.
• Remove all corrosion and loose scale from exposed
reinforcing steel. Reference International Concrete
Repair Institute (ICRI) Technical Guideline #310.1R-
2008 (formerly #03730) “Guide for Surface Preparation
for the Repair of Deteriorated Concrete Resulting from
Reinforcing Steel Corrosion,” or in accordance with The
Society for Protective Coatings (SSPC) guidelines.
• Mechanically abrade all exposed steel down to white
metal, paying particular attention to the back of exposed
steel bars. Corrosion from pits and imperfections can
also be removed by vigorously brushing the metal
surface to remove all possible oxidation.
• If a significant portion of cross section has been
lost, replace or supplement the reinforcing steel, as
recommended by an engineer, and coat with Mapefer 1K.
• If the concrete substrate around the application area is
to be repaired, remove all delaminated, loose or spalled
concrete before application of Mapefer 1K.
• Ensure that all substrates and ambient temperatures are
between 45°F and 95°F (7°C and 35°C).
MIXING
Note: Choose all appropriate safety equipment before
use. Refer to Material Safety Data Sheet (MSDS) for more
information.
1. Pour 1 to 1.2 U.S. qts. (0,95 to 1,14 L) of cool, clean
potable water into a clean container.
2. While slowly adding the 10-lb. bag (4,54 kg) of Mapefer
1K, drill-and-paddle-mix to a lump-free consistency.
PRODUCT APPLICATION
Application on steel as an anticorrosion coating
1. Read all installation instructions thoroughly before
installation.
2. Apply by brush within one hour (at 73°F [23°C]) of
mixing.
3. Apply in two coats of 1/32" (1 mm) each, totaling 2/32"
(2 mm).
4. Apply the second coat between 2 and 24 hours of the
first coat.
5. Do not apply repair mortar until Mapefer 1K is
completely dry, usually after 6 hours at 73°F (23°C).
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Product Performance Properties
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Laboratory Tests
Water mix ratio
Results
22% to 24% – 1.06 to 1.16 U.S. qts. (1,0 to 1,10 L)
Ma 1K
Consistency Paste
Color Blue
Specific gravity (kg/dm3) 1.7 to 1.9
pH 12 to 13
Application temperature range 45°F to 95°F (7°C to 35°C)
Pot life > 1 hour
Minimum waiting time between 2 coats About 2 hours
Minimum time before application of repair mortar 6 to 24 hours
Adhesion to concrete > 350 psi (> 2,41 MPa)
Adhesion to sandblasted steel > 350 psi (> 2,41 MPa)
Minimum pull-out strength, according to RILEM RC/6,
on deformed rods with 1/4" (6 mm) diameter treated with > 90% the value on untreated rods
Mapefer 1K
Resistance to saline fog after 120 hours (DIN 50021) Excellent (no corrosion)
Independent testing per DIN EN ISO 6270-2, DIN 50018,
No corrosion, no detachments
DIN EN ISO 9227
Independent testing to ASTM B117-07 (salt spray, 120 hours) Pass (no defects)
Storage In a dry place at above 41°F (5°C)
Protect containers from freezing in transit and storage. Provide for heated storage on site and deliver all materials at least 24
hours before work begins.
Shelf Life and Application Properties
Shelf life 1 year in original sealed packaging in a dry place
CSI Division Classification
Maintenance of Concrete 03 01 00
Packaging
Product Code Size
276645 Carton box containing two 10-lb. (4,54 kg) bags
Approximate Product Coverage* per 10-lb. (4,54-kg) bag at 2 coats of 1/32" (1 mm) each, totaling 5/64" (2 mm)
Yield on a Flat Surface
About 15 to 18 sq. ft. (1,39 to 1,67 m2)
Yield on Reinforcing Steel in linear feet (m)
# 4 bar 45 (13,7)
# 5 bar 30 (9,14)
# 6 bar 27 (8,23)
# 7 bar 24 (7,32)
# 8 bar 22 (6,71)
*C
overage shown is for estimating purposes only. Actual jobsite coverage may vary according to substrate conditions and
setting practices.
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Ma 1K
Related Documents
Guide for Surface Preparation for
the Repair of Deteriorated Concrete Guide #310.1R-2008
Resulting from Reinforcing Steel (formerly #03730)
Corrosion
Refer to MAPEI’s MSDS for specific data related to VOCs,
health and safety, and handling of product.
Statement of
Responsibility
Before using, user shall determine the suitability of the
product for its intended use and user alone assumes all
risks and liability whatsoever in connection therewith. Any
claim shall be deemed waived unless made in
writing to us within fifteen (15) days from
date it was, or reasonably should have been,
discovered.
We proudly support the following industry organizations:
MAPEI Headquarters of the Americas Technical Services Services in Mexico
1144 East Newport Center Drive 1-800-992-6273 (U.S. and Puerto Rico) 0-1-800-MX-MAPEI (0-1-800-696-2734)
Deerfield Beach, Florida 33442 1-800-361-9309 (Canada)
Phone: 1-888-US-MAPEI Edition Date: January 4, 20012
(1-888-876-2734) Customer Service PR5324 MFRD_A12Evp © 2012 MAPEI Corporation.
1-800-42-MAPEI (1-800-426-2734) All Rights Reserved. Printed in the USA.
