ISR VO

Durable, crack resistant repair mortar utilizing ISR (Internal Stress Relief) technology with ECB-Tech corrosion protection. Restoring concrete structures requires repair mortars that are durable, crack-free and easy to apply.

Where to use:

Protective repairs to vertical and overhead concrete.

How to apply:

Trowel applied. Additional Information

Performance Characteristics

Sustainable Green Technology
  • Contains significant concentrations of both pre-and post-consumer recycled content.
Low Shrinkage
  • Maintains integrity of repair, resists cracking.
Thermal Compatibility
  • Prevents delamination due to temperature change.
Corrosion Protection
  • Protects reinforcing steel in repair zone and suppresses ring anode effect.
Durable
  • Resistant to weathering action, excellent freeze/thaw stability and abrasion resistance.
Long-term Protection
  • Resistant to deicing salts, carbonation, chloride, and chemical attack.
Dimensionally Stable
  • Suitable for large areas.
Abrasion Resistant
  • Hard, durable surface for long term wear.

Surface Preparation

  • Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper bond.
  • Saw cut edges with a diamond blade at a 90° angle to eliminate feather edging. Avoid polishing the edges as this will inhibit bond.
  • Avoid bruising or micro cracking during surface preparation. Refer to ICRI Surface Preparation Guide 03732.
  • Repair zone must be a minimum of 1/2 inch deep, of simple geometry, with no complex edge conditions.
  • Avoid long narrow repairs; these have a tendency to crack.
  • Saturate substrate with clean water, (saturated surface dry/SSD), with no standing water during Application.
  • Remove concrete from corroded steel and several inches beyond to expose non-corroded steel.
  • Provide a 3/4-inch clearance between the concrete and steel.
  • Damaged reinforcing steel should be inspected by a qualified engineer and appropriate action taken.

Priming

  • Prime the prepared substrate including all edges with a bond coat of ISR VO. Work the bond coat into the substrate to ensure intimate contact and establish bond. ISR VO must be applied while bond coat is wet. If the bond coat dries, remove and reapply.
Embedded Metal and Steel
  • Remove all scaling rust from embedded metal and steel. Apply ECB anti-corrosion coating.

Mixing

  • Must be mechanically mixed using a low speed drill (400-600 rpm) and mixing paddle or mortar mixer.
  • Pour 1 gallon of potable water into a clean mixing vessel and slowly add all of the powder.
  • Mix continuously for 3 minutes to a uniform, lump-free consistency.
  • Add up to 1 cup of additional water, if needed. Proper mix ratio is 4 parts powder to 1 part water.
  • Allow to “breathe” for 1 minute and remix for 1 minute. This will improve workability and extend open time
  • Do not overmix, this will entrain excess air.

Application

  • At the time of application, surfaces should be saturated surface dry (SSD) but hold no standing water.
  • Place material continuously to break points.
  • Force the material against the edges of the repair, working toward the center.
  • Material may be applied in multiple lifts of not less than 1/2 inch and no greater than 2 inches.
  • Consolidate each lift and allow to stiffen to thumb-print hard before continuing.
  • Scratch (screed/open pores) each lift to prepare surface for subsequent lift.
  • Finish with a float or trowel.
  • Avoid overworking material during placement and finishing – this will produce surface (map) cracking.

Curing

  • Dampen the repair with a fine mist of water for 24 hours or moist cure with wet burlap and polyethylene.
  • Protect repair from direct sunlight, wind, rain and frost during curing period.

Clean Up

  • Clean tools and equipment with water immediately after use.
  • Cured material must be removed mechanically.

Theoretical Yield

Yield Per Pail
Repair Depth
Square Feet
0.42 cubic feet
1/2 Inch
10.08
0.42 cubic feet
1 Inch
5.04
0.42 cubic feet
1.5 Inches
3.36
0.42 cubic feet
2 Inches
2.52

Product Handling

Packaging
  • 50 lb. bags
Shelf Life
  • 12 months when properly stored.
Storage
  • Transport and store in cool, clean, dry conditions in unopened containers.
  • High temperature or high humidity 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. Refer to ACI Cold Weather Application Guidelines.
  • Cold mixing water and low temperature will retard set. Hot water and high temperature will accelerate set.
  • Protect application from precipitation and high wind for at least 8 hours.
  • Do not add more water than specified, this will lower strengths and cause shrinkage cracking.
  • Avoid overworking material during placement and finishing – this will produce surface (map) cracking.

Health and Safety

  • Product is alkaline.
  • Do not ingest.
  • Avoid breathing dust.
  • Avoid contact with skin and eyes.
  • Refer to Safety Data Sheet (SDS) for additional information.

First Aid

  • In case of skin contact, wash thoroughly with soap and water.
  • For eye contact, flush immediately with a high volume of water for at least 15 minutes and contact a medical professional.
  • For respiratory problems, remove person to fresh air.

Disposal

  • Dispose of material in accordance with local, state or federal regulations.
  • Technical Data
  • Data Bulletin
  • CSI Spec
  • Competition
  • Curing
  • FAQs
  • Safety Data Sheet
  • Technical Bulletin
  • Development Booklet

Physical state and appearance

 

Dry powder with aggregate.

Base

 

Portland cement

pH

 

>12

Length change

ASTM C157

<500 μstrains @ 28 days

Restrained shrinkage cracking

ASTM C1581

No cracking after 256 days

Chloride Ion Penetration

ASTM C1202

1,200 coulombs @ 28 days

Short-term bond strength

ICRI 03739*

400 psi

Scaling resistance (Rating 0 – 1)

ASTM C672

Weight loss after 50 cycles (kg/m²) .04

Freeze/thaw resistance

- procedure A

ASTM C666

Weight gain (%) 0. Expansion (%) 0. Durability Factor DF (%) 99.

  

7 days

28 days

Compressive strength - psi

ASTM C39

4390 

4400

Splitting tensile strength – psi

ASTM C496/C496M

 

463

  

Chord elastic modulus E, [GPa]

Tangent elastic modulus [GPa]

Modulus of elasticity

ASTM C469-14

13.8

13.8

FOR PROFESSIONAL USE ONLY

Conproco warrants this product for one year from the date of manufacture to be free from manufacturing defects and to meet the technical properties on the current technical data sheet if used as directed within shelf life. User determines suitability of product for use and assumes all risks. Buyer's sole remedy shall be limited to the purchase price or replacement of product, exclusive of labor or cost of labor. May 19, 2020.

NO OTHER WARRANTIES EXPRESSED OR IMPLIED SHALL APPLY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. CONPROCO CORP SHALL NOT BE LIABLE UPON ANY LEGAL THEORY FOR SPECIAL OR CONSEQUENTIAL DAMAGES.

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EucoPatch; Speed Crete Red Line
Planitop X; Planitop XS
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None
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Concrete-Top Supreme; Thin Top Supreme; Euco Re-Cover; EucoRepair SCC; Tamms Structural Mortar
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None
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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
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24 Hours
18 Hours
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M3P & M3P-X
45°
24 Hours
18 Hours
12 Hours
Dry to touch
M3P Overcoat
45°
24 Hours
18 Hours
12 Hours
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Conpro Lastic
45°
24 Hours
18 Hours
12 Hours
Dry to touch
Color Coat
45°
24 Hours
18 Hours
12 Hours
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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

In 2007 the Navy was concerned that the repairs to concrete at their worldwide facilities were failing prematurely. The Navy established a SBIR grant, "Development of a Crack-Resistant Durable Repair Material for Navy Structures".   Conproco was selected to partner with the Navy in this 3-year research and development effort. The technology developed is termed Internal Stress Relief. 

Cracking creates a pathway for water and contaminants to enter concrete.  Water causes corrosion of the reinforcing steel.  The resulting rust is an expansive force that causes additional cracking and ultimately, failures. ISR technology minimizes failures in concrete repairs by incorporating proprietary recycled rubber aggregate in the mortar to create a relief mechanism that mitigates the propagation of micro-cracking and interconnected cracks.    

Yes. ISR VO is a hand applied mortar for use in vertical and overhead applications as well as to fill deep repairs prior to applying the final inch with ISR CM. ISR AG can also be used in deep repairs placed either by trowel or as a form and pour/pump.

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