• What is Rapid Set V/O Repair Mix?

    Rapid Set V/O Repair Mix (Vertical/Overhead Repair Mix) is a high performance, polymer-modified, fiber-reinforced, blend of cement with additives and specially graded fine aggregate. Combine V/O Repair Mix with water to produce a high-quality repair material ideal for areas where rapid strength gain, high durability, and low shrinkage are desired.

  • What are common applications for V/O Repair Mix?

    Use V/O Repair Mix for general concrete repair, including vertical and/or overhead applications, or small spot repairs.

  • What color does V/O Repair Mix cure into?

    V/O Repair Mix cures to a light grey color that matches most portland cement concrete.

  • Is this a modified portland cement product?

    No, the high-performance properties are solely based on Rapid Set Cement technology.

  • Is a bonding agent necessary?

    In most applications, bonding agents are not required. Please follow surface preparation recommendations on Rapid Set products technical datasheets. If a bonding agent is required because these conditions cannot be met, or if the use of bonding agents is mandated, follow the bonding agent manufacturers recommendation for installation. Rapid Set products have been successfully applied in conjunction with a wide variety of surface applied bonding agents, including epoxy systems. Selection and suitability of the bonding agent is the responsibility of the specifier and/or the installer.

  • Does V/O Repair Mix contain corrosion inhibitor?

    Yes, V/O Repair Mix contains an integral corrosion inhibitor to increase protection of embedded reinforcement.

  • Can I blend other products with V/O Repair Mix?

    Blending with other products may give unpredictable results and is not recommended. The use of Rapid Set approved additives and colors are acceptable.

  • How thick can I apply the product?

    For overhead applications, V/O Repair Mix can be applied in thicknesses from 1/32" to 2" (0.1 to 5.1 cm). For vertical applications and small spot repairs, thicknesses up to 6" (15.2 cm) are acceptable.

  • How much do I need?

    One bag of V/O Repair Mix yields approximately 0.37 cubic feet. This is equivalent to one square foot, 4.5 inches deep.

  • How do I prepare the surface?

    Surface must be clean, sound, and free of oil, curing compound, dust, mastic, and/or other bond-breakers. Surface shall be prepared to a minimum profile of ICRI CSP 3. Mechanically abrade surface and remove all unsound material. Apply V/O Repair Mix to a thoroughly saturated surface with no standing water.

  • How do I mix it?

    Just add water. The use of a mechanical mixer such as a mortar mixer or drill-mounted mixer is recommended. To maximize working time, organize work so that all personnel and equipment are in place before mixing.

  • How do I place and finish it?

    V/O Repair Mix may be placed using traditional methods. Place and consolidate quickly to allow for maximum finishing time. Do not wait for bleed water; apply final finish as soon as possible. V/O Repair Mix may be troweled, floated, shaved, or broom finished. Do not install on frozen surfaces.

  • How do I cure V/O Repair Mix?

    V/O Repair Mix does not require water curing or curing compound under moderate conditions at 70 degrees (21у). However, in excessively dry, windy, or hot conditions, mist with water to maintain a continuously wet surface until the product has achieved sufficient strength.

  • Is a scrub coat needed when applying this material?

    Proper surface preparation is the most important step to achieve good adhesion of a repair mortar. In addition to proper surface prep, working or scrubbing the material into the substrate is an option to improve the adhesion when applied properly. Ensure the material is properly worked into the recessed areas of the substrate and apply the repair mortar immediately while the scrub coat is wet. Promptly building to full depth reduces the risk of developing a cold joint.