SikaQuick® VOH
Fast Setting, one component, cementitious vertical and overhead repair mortar with superior high build properties
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SikaQuick® VOH is a fast setting, one component, ready-to-use repair mortar for vertical and overhead applications using specialty cement blends. SikaQuick® VOH LD is a low dust formula also available as a separate item.
- Minimal time required between lifts.
- Fast finishing time
- Time/labor-saving material; application up to 3" (76.2 mm) on vertical surfaces in one layer
- Easy to use; just add water
- High bond strength ensures excellent adhesion
- High early and ultimate strength
- Increased freeze/thaw durability and resistance to deicing salts
- Suitable for exterior and interior applications.
- Overhead thickness up to 2" (50 mm)
- Fiber reinforced and polymer modified
- Contains corrosion inhibitor
- Use in cold temperatures with SikaQuick WinterBoost (20° - 45 °F)
- Low dust version available
Usage
- Fast repairs to overhead and vertical concrete and mortar surfaces on grade, above and below grade.
- As a repair material for building facades, parking structures, industrial plants, bridges, etc.
- As a fast setting repair material for new construction defects.
Advantages
- Minimal time required between lifts.
- Fast finishing time
- Time/labor-saving material; application up to 3" (76.2 mm) on vertical surfaces in one layer
- Easy to use; just add water
- High bond strength ensures excellent adhesion
- High early and ultimate strength
- Increased freeze/thaw durability and resistance to deicing salts
- Suitable for exterior and interior applications.
- Overhead thickness up to 2" (50 mm)
- Fiber reinforced and polymer modified
- Contains corrosion inhibitor
- Use in cold temperatures with SikaQuick WinterBoost (20° - 45 °F)
- Low dust version available
Packaging
- 44 lb (20 kg) bag
Color
Gray powder
Product Details
APPROVALS / STANDARDS
- Meets ASTM C-928, type R2
Chemical Base
- SikaQuick® VOH is a polymer modified, cement blends.
- SikaQuick® VOH LD is a polymer modified, cement blends with dust reduction technology.
Shelf Life
12 months from date of production if stored properly in original, unopened and undamaged sealed packaging.
Storage Conditions
Store dry at 40–95 °F (4–35 °C)
Protect from moisture. If damp, discard material
Compressive Strength
73 °F (23 °C) | 20 °F (-7 °C) with 1 cup of SikaQuick® Winter Boost | |
| 3 hours | > 1,500 psi (10.3 MPa) | 400 psi (2.8 MPa) |
| 1 day | > 3,000 psi (20.7 MPa) | 1,800 psi (12.4 MPa) |
| 7 days | > 4,500 psi (31.0 MPa) | 2,400 psi (16.6 MPa) |
| 28 days | 5,500 psi (37.9 MPa) | 4,500 psi (31.0 MPa) |
* Consult SikaQuick® Winter Boost Product Data Sheet.
Modulus of Elasticity in Compression
7 days | 2.2x106 psi (15.2 GPa) |
Flexural Strength
| 1 day | 400 psi (2.8 MPa) |
| 7 days | 600 psi (4.1 MPa) |
| 28 days | 1,000 psi (6.9 MPa) |
Splitting tensile strength
| 1 day | 200 psi (1.4 MPa) |
| 7 days | 250 psi (1.7 MPa) |
| 28 days | 500 psi (3.4 MPa) |
Slant Shear Strength
| 1 day | 1,000 psi (6.9 MPa) |
| 7 days | 1,600 psi (11.0 MPa) |
| 28 days | 2,000 psi (13.8 MPa) |
* Mortar scrubbed into substrate at 73 °F (23 °C) and 50 % R.H.
Pull-Out Resistance
> 250 psi (1.7 MPa) Substrate failure | (ASTM C-1583) 73 °F (23 °C) 50 % R.H. |
Shrinkage
< 0.05 % | (ASTM C-157 modified per ASTM C-928) |
Rapid Chloride Permeability
28 days | Low range |
Application
Mixing Ratio
6–6.5 pts (2.8-3.1 L) per bag
Fresh mortar density
125 lb/ft3 (2.0 kg/L) | (ASTM C-138) |
Layer Thickness
| Min. | Max. | |
| Overhead | 1/8" (3 mm)* | 2" (51 mm) |
| Vertical | 1/8" (3 mm)* | 3" (75 mm) |
* Minimum thickness is 1/2" (12.7 mm) with the use of SikaQuick® Winter Boost
Product Temperature
65–75 °F (18–24 °C)
Ambient Air Temperature
> 45 °F (7 °C)
20 - 45 °F (-6.7 - 7 °C) with the use of SikaQuick® Winter Boost
Substrate Temperature
> 45 °F (7 °C)
20 - 45 °F (-6.7 - 7 °C) with the use of SikaQuick® Winter Boost
Set Time
10-25 min | (ASTM C-266) |
Final set time
< 35 min | (ASTM C-266) |
* To control setting times, cold water should be used in hot weather and hot water used in cold weather.
Application Time
~ 15 minutes
Finishing time
20–30 minutes
Waiting / Recoat Times
| Time between lifts | Final set time |
| Acrylic water based | 4 hrs |
| Epoxy/PU based | 6 hrs |
Compatibility and adhesion testing is always recommended.
Coverage
0.44 ft3 (0.01 m3) per bag
(Coverage figures do not include allowance for surface profile and porosity or material waste)
MIXING
- Wet down all tools and mixer to be used.
- Mix mechanically with a low-speed drill (400–600 rpm) and mixing paddle or mortar mixer.
- Mix to a uniform consistency, maximum 3 minutes.
- Manual mixing can be tolerated only for less than a full unit.
- Thorough mixing and proper proportioning of the powder and liquid is necessary.
- Inaccurate proportioning of the powder to liquid will result in a finished product that may not conform to the typical published performance property values.
With water
- Start mixing with 6 pints (2.8 L) of water per bag.
- Adjust the water dosage by a maximum amount of +/- 1/2 pint, if necessary, to achieve the desired consistency.
- Do not over-water. Over-watering may result in difficulty handling and/or not meeting stated property values.
With Sika Latex R
- Start mixing with 6 pints (2.8 L) of Sika Latex® R per bag.
- Adjust the Sika Latex® R dosage by a maximum amount of +/- 1/2 pint, if necessary, to achieve the desired consistency.
- Do not overdose with SikaLatex® R. Using too much SikaLatex®-R may result in difficulty handling and/or not meeting typical published performance property values.
With SikaQuick® Winter Boost
Pour the recommended volume of clean, potable water [> 34° F (- 1° C)] into a suitably sized and clean mixing container.
Add 1/2 or 1 cup per bag into the water and mix until it is dissolved.
Add the contents of the SikaQuick® VOH / SikaQuick® VOH LD bag while continuing to mix.
Refer to the current Product Data Sheet for complete and detailed instructions on the use of the SikaQuick® Winter Boost.
APPLICATION
- The mixed SikaQuick® VOH / SikaQuick® VOH LD must be worked well into the prepared substrate, filling all pores and voids.
- Compact well. Force material against edge of repair working towards the center. Thoroughly compact the mortar around exposed reinforcement.
- After filling repair, consolidate, then screed.
- Finish with steel, magnesium, wood, plastic floats, or damp sponges, depending on the desired surface texture.
MULTIPLE LIFTS
- Where multiple lifts are required, score top surface on each lift to produce a roughened substrate for next lift.
- Allow preceding lift to harden and achieve initial set before applying fresh material.
- SSD previous lift by lightly misting with clean water. Remove all standing droplets.
- Repeat procedure until desired installation thickness is achieved. Finish the final lift of SikaQuick® VOH / SikaQuick® VOH LD as described above.
- If previous layers are over 6 hours old, mechanically prepare the substrate and dampen.
CURING TREATMENT
- As per ACI recommendations for Portland cement concrete, curing is required.
- Moist cure with wet burlap and polyethylene, a fine mist of water or Sika® Antisol®-250 W*.
- Curing compounds adversely affect the adhesion of following lifts of mortar, leveling mortar or protective coatings.
- Moist curing should commence immediately after finishing.
- Protect freshly applied mortar from direct sunlight, wind, rain and frost.
* Pretesting of curing compound is recommended.
CLEANING OF TOOLS
- Uncured product may be cleaned from tools and surfaces with water.
- Cured product must be removed mechanically.
