ECB

ECB is a brush or spray applied, water based, single component anti-corrosion coating and long open time bonding primer that prevents rusting of rebar. Mechanically remove rust from rebar and apply.

Where to use:

Protect reinforcing steel and metal embedded in concrete against corrosion.

How to apply:

Spray or brush applied. Additional Information

Performance Characteristics

  • Multiple defenses Barrier coating. Corrosion inhibitor. Prevent anode transfer.
  • Breathability Water vapor permeable.
  • Ease of use Single component, water based technology. Orange color clearly defines application area.
  • Stable Does not produce destructive by- products.
  • Long open time Up to 30 days on steel before covering. Up to 5 days on concrete before covering.
  • Thermal compatibility Will not cause delamination due to temperature change.
  • Ease of application Spray apply to increase production.
  • Ease of clean up Clean equipment with water.
  • Environmentally friendly Water based, low odor, non-flammable.

Surface Preparation

Reinforcing Steel
  • Mechanically remove all scaling rust from metal.
  • Remove concrete around rebar to provide a minimum 3/4 inch clearance.
  • Remove concrete along the length of the bar until the exposed bar shows no sign of corrosion activity.
Concrete
  • Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper adhesion.

Priming

  • ECB is a priming treatment.

Mixing

  • Stir or mechanically mix using a low speed drill (400 – 600 rpm) until homogeneous.

Application

  • Brush or spray apply a uniform 7 mils. wet to all exposed steel.
  • For spray applications use a Graco 3500 or equivalent. Refer to Conproco Black Book.
  • Brush or spray apply a uniform 7 mils. wet to prepared concrete surface when using as a bonding primer.
  • In severe environments a 2 coat application on steel is recommended.

Curing

  • Allow ECB to dry for a minimum of 30 minutes @ 70°F and be dry-to-touch before placing covering material or applying a second coat.

Clean Up

  • Clean tools and equipment with water after use.

Coverage/Yield

Packaging/Reinforcing Steel
  • 1 gal. – 900 ft. of #8 rebar.
  • 5 gal. – 4500 ft. of #8 rebar.
Packaging/Concrete
  • 1 gal. – 230 ft.² @ 7 mils.
  • 5 gal. – 1150 ft.² @ 7 mils.

Product Handling

  • Packaging 1 and 5 gallon plastic containers.
  • Shelf Life 18 months in unopened containers.
  • Storage Protect from freezing. Transport and store in cool, clean, dry conditions in unopened containers. High temperature will reduce shelf life.

Limitations

  • Do not apply unless substrate and ambient temperature can be maintained at a minimum of 40°F for 24 hours.
  • Cure time at 40°F is approximately 24 hours. ECB must be dry-to- touch prior to placing covering material.
  • Repair zone should be cleaned of dirt and dust immediately prior to placement of concrete or repair material.
  • Metal to be coated must be free of all scaling rust at the time of application.

Health and Safety

  • Avoid contact with eyes.
  • Do not ingest.
  • Refer to Safety Data Sheet (SDS) for additional information.

First Aid

  • In case of eye contact, flush immediately with a high volume of water for at least 15 minutes and contact a medical professional.

Disposal

  • Dispose of material in accordance with local, state and federal regulations.
  • Technical Data
  • Data Bulletin
  • CSI Spec
  • Competition
  • Curing
  • Pump & Spray
  • FAQs
  • Safety Data Sheet

Physical state and appearance

 

Thick, orange mastic

Base

 

Aqueous

pH

 

9.0 - 9.5

Percent solids by weight

 

58%

Flash point

ASTM D56

>200°F Seta cc

Density of liquid coatings

ASTM D1475

8.4 lbs./gal

Water vapor transmission

ASTM E96

4 perms @ 10 mils

Protection of embedded rebar

NCHRP 278

 

      Uncoated

 

Corrosion @ 10-12 cycles

      Coated with ECB

 

No corrosion after 50 cycles

Corrosion of embedded steel reinforcement

ASTM G109

No corrosion after 80 cycles

Resistivity – Wiss, Janney, Elstner procedure

 

5.3 x 107 ohm/cm

Accelerated weathering - QUV

ASTM G154

2000 hours –
UV-B cycled with condensation – no effect

Direct tensile strength

ACI 503R

300 psi

Slant shear bond strength

ASTM C882

900 psi

Volatile Organic Compounds – VOC

Actual

54 g/L

Conproco
 
BASF
Edison
Euclid / Tamms
Mapei
Sika
USCP
 
Lapidoltih
System 95W
Hornolith
None
None
None
Corrosion Inhibitors
Master Emaco P124; Zincrich Primer
System 49 CPBA
Dural Prep A.C.
Mapefer 1K
Armatec 110
HP Bondit lll
Bonding Primers
Master Emaco P130; Master Protect P8100 AP; Master Protect P200
None
Dural Prep A.C.
Planibond 3C
Armatec 110
None

Cementitous Products

Product
Minimum Temperature
Minimum to 55° F
55°F – 70° F
70° F and above
Minimum Time to Coat
ISR CM
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
ISR VO
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
ISR AG
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Conpro Set
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Quick Shot
40°
8 Hours
2 Hours
1 Hour
3 to 5 days depending on temperature
Forment (remove forms)
40°
72 Hours
48 Hours
24 Hours
3 to 5 days depending on temperature
Gun Shot LPS
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Injection Grout (remove clay)
40°
24 Hours
24 Hours
24 Hours
3 to 5 days depending on temperature
One Shot
40°
24 Hours
12 Hours
6 Hours
3 to 5 days depending on temperature
Matrix
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Matrix TR
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Repoint
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Plastermix
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Structural Skin
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Conpro One Coat
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Conpro Stucco
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Foundation Coat
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature
Super Seal
40°
12 Hours
4 Hours
2 Hours
3 to 5 days depending on temperature

Liquid Products

Product
Minimum Temperature
Minimum to 55° F
55°F – 70° F
70° F and above
Minimum Time to Coat
Conpro Start
40°
18 Hours
12 Hours
6 Hours
Refer to temperature
ECB
40°
8 Hours
1 Hour
30 Minutes
Dry to touch
Primer
40°
8 Hours
1 Hour
30 Minutes
Color change to orange
Shield MX
40°
24 Hours
18 Hours
12 Hours
Dry to touch
M3P & M3P-X
45°
24 Hours
18 Hours
12 Hours
Dry to touch
M3P Overcoat
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Conpro Lastic
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Color Coat
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Super Color Stain
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Elastideck
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Terra Color
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Terracotta Finish
45°
24 Hours
18 Hours
12 Hours
Dry to touch

Corrosion is the primary cause of failures in concrete.  When water reaches reinforcing steel the corrosion process begins. Corrosion produces iron oxide (rust). Rust is an expansive force that causes cracking in concrete.                

Cracking provides a pathway for water and environmental contaminants to reach rebar which results in more corrosion in a continuous cycle that can lead to costly repairs.  Repairs to concrete should always include treating rebar with an anti-corrosion coating.        

ECB (Electro-Chemical Barrier) incorporates zinc technology to prevent corrosion using sacrificial chemistry in addition to passive and integral anti-corrosion chemistries.           

ECB can be left uncovered on rebar for up to 30 days simplifying job site scheduling.

Projects Showcase

Baltimore World Trade Center

Project History

Where the city meets the sea lies the Baltimore WTC. Rising majestically from Baltimore’s Inner Harbor, the observation deck of the WTC offers a panoramic 360° view of the city. Constructed in 1977, this 30 -story tower is the world’s tallest regular pentagonal building. Designed by Henry N. Cobb to resemble the prow of a ship rising out of the water, the office structure includes docking facilities for the Maryland Port Administration, and served as a focal point for area redevelopment. Corroding rebar set close to the façade surface caused extensive spalling. Once the damaged areas were removed, ECB corrosion inhibitor was used to coat rebar before patching. ECB was chosen not only for its chemical properties, but also because it was a very easy product to use from high swing staging in often windy conditions. ECB is single component, CSI simply had to close the container when not in use, meaning pot life was not an issue. Since ECB can also be used as a bonding primer, wind conditions and the potential for product blowing on to the substrate was not a concern. A standard color of MIMIC repair mortar was an excellent match for the building. MIMIC was the preferred mortar because it could be easily finished to replicate the board form finish of the original substrate. Injection Grout was selected for its ability to fill hairline to ¾ inch cracking with one standard formulation.

 

Walnut 32

Project History

Still in use after over 50 years, Walnut 32 is one of two dozen parking garages on the University of Pennsylvania campus and is considered a historically significant structure. The Stonehenge-like freestanding brick panels climb with the parking deck and anchor both sides of the poured in place concrete framework spanning the entire length of the structure.
The main reason for concrete failure in many structures, and common in 50 year old buildings exposed to the elements, is corrosion of reinforcing steel. Further corrosion of the rebar was prevented by treating it with Conproco ECB, a zinc-rich acrylic coating.
Once the concrete surfaces were prepared, Conpro Set, a polymer modified repair mortar, was trowel-applied to vertical repairs. Deeper overhead repairs to the parking decks were creatively resolved by using forms and funnels to pour Conproco’s Forment® through the upper deck to the repair areas below.
The façade was pre-treated with Primex, a clear penetrating mineral silicate primer, to provide uniform substrate absorption. The final step in the overall renovation was applying M3P Stain, a semitransparent, potassium silicate, water repellent stain, to provide uniform color and long term protection.

Consulting Architect
Paul Steege Associates
Philadelphia, PA

Consulting Preservationist
Schnabel Conservation
Trenton, NJ

Distributor
TB Philly, Inc.,
Phoenixville, PA

 

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