DESCRIPTION
ProKrete is a low odor, 3-component, urethane concrete. It provides variable thickness ranging from roller applied 5 mils sealer up to a 1/2" finished trowelable system. ProKrete is designed to withstand aggressive
chemical and thermal attack. When properly applied, it provides superior functionality and longevity. Especially well suited to be used in all food and beverage environments.
BRIEF HISTORY
ProKrete cementitious urethane products have been developed from nearly three decades of hands on experience with both installer and end-user. This product offers longer working time and superior flow & leveling when compared to other urethane concrete. Cementitious urethane has been time- tested to outperform the traditional mortar system. It combines the strength of concrete, urethane, and urea for an extremely durable, versatile, reliable, and self-priming functional flooring system. Cementitious urethane provides similar coefficient of expansion and contraction with concrete, yet its strength value is 2-3 times stronger and more resilient.
TYPICAL USES
- All Food & Beverage Processing
- Pharmaceutical Plants
- Commercial Kitchens
- Mechanical Rooms
- Engineering M/C Shops
- Manufacturing
- Loading Docks
- Hot/Cold Wash Areas
- Chemical Processing
- Chilling/Refrigeration Areas
COLORS
See “Color Guide”
PACKAGING
Pre-measured kits: 1 unit of resin, 1 unit of hardener, and a blended aggregate bag
FEATURES & BENEFITS
- Superior Flow & Leveling
- Excellent Thermal Shock Resistance
- Service Temperature up to 220°F, or 250°F for Intermittent Spills
- ProKrete Catalyst Available for Fast-Track Projects & Quicker Return to Service
- Low Odor/Zero VOC
- Reduced Outgassing
- Meets USDA, FDA, & CFIA Standards
- Superior Adhesion Quality
- Excellent Chemical, Stain, & Impact Resistance
- Can Be Applied at Lower Temperature, Down to 36°F
- Longer Working Time
- Can Be Applied to 5 Day Old Concrete
- Moisture Tolerant System up to 25 lbs or Internal RH of 99%.
- MicrobeBLOK Antimicrobial
- Self-Priming
- Non-Food Tainting
- LEED- Renewable Resources
- ProColor Universal Colorants
- ADA Compliant
STORAGE
Materials should be stored indoors between 65°F (18°C) and 90°F (32°C).
SHELF LIFE
- Unopened containers - 1 year from date of manufacture.
- Cement based aggregates should be stored in a dry environment for maximum shelf life.
LIMITATIONS
This product is best suited for application in temperatures between 50°F and 90°F, but can be applied as low as 36°F. ProKrete SL, HD, RT, and TF are not UV stable. Grey colors are most susceptible to ambering.
PRODUCTS GUIDE
There is a range of ProKrete products that can be applied at various thickness levels to a properly prepared substrate. ProKrete is a modular product line utilizing the same resin and hardener.1. HD System is a “heavy duty” self-priming
monolithic single step application. It’s trowel- applied at 1/4"-1/2" thickness. It is used as a single application.2. RT System is a “heavy duty” self-priming
rake and trowel system. It is trowel-finished at 3/16"-1/4" in thickness. It can be used as a
single application, or broadcasted (RTB) for texture or decorative finish.3. SL System is a “self-leveling” smooth matrix
with a satin finish. It can be applied at 1/16"- 1/8" in thickness, or by adding an additional 1 gallon of 30-40 mesh silica sand to the mix for 3/16" thickness. Priming the concrete is recommended when ProKrete SL is used as a stand-alone system. 4. SL Broadcast System is available in ProKrete SLB, SLQ, or SLF. It is a “self-leveling”
applied system at 1/16"-1/4" with a broadcast media. The system can be broadcasted with either decorative quartz (SLQ), decorative flakes (SLF), or natural silica quartz aggregate (SLB).5. TF is a “thin film”, roller applied coating.
It can applied with HD/RT liquids (1 bag of TF Aggregate) or SL liquids (2 bags of TF Aggregate) as a primer or as top/seal coat for either ProKrete HD/RT/RTB or SLB systems. TF can also be broadcasted with silica quartz
aggregate and topcoated to provide a cost- effective “Shop Floor” type system.
PRELIMINARY FLOOR INSPECTIONS
CHECK THE CONCRETE: Concrete must be structurally sound and free of curing membrane, paint or other sealer. If you suspect that the concrete has been previously sealed, call ProREZ technical support for further instructions.MOISTURE GUIDELINES: The ProKrete system
is naturally resistant to moisture vapor emission within concrete slabs. Both the HD and SL products are tolerant to 25 lbs./1,000 sq. ft./24 hours per ASTM F-1869 (Calcium Chloride Test Method) or 99% relative humidity per ASTM F-2170 (In-situ Relative Humidity Test Method).CHECK THE TEMPERATURE AND HUMIDITY:
Floor temperature and materials should be between 65°F (18°C) and 90°F (32°C). Humidity must be less than 95%. DO NOT coat unless floor temperature is more than five degrees over the dew point.
SURFACE PREPARATION
This product requires preparation in order to perform as expected. Substrate must be mechanically profiled (ASTM 4259-83), clean, sound, and dry.
COVERAGE RATES
A kit of ProKrete will cover as follows:
- HD will cover 19 s.f. per kit at 1/4" thickness.
- RT will cover 24 s.f. per kit at 3/16" thickness.
- SL will cover 60 s.f. per kit at 1/8" thickness and 100 s.f. at 1/16" thickness.RENEWABLERESOURCESMicrobe BLOK™ProREZ Coatings, LLC
ProKRETE
| PHYSICAL CHARACTERISTICS | |
|---|---|
| Mix Ratio (by volume) | 1 unit of resin, 1 unit of hardener, and1 blended aggregate bag |
| Viscosity at 70°F | Not Applicable |
| Pot life at 70°F | 20 minutes |
| Cure Time, Tack-Free at 70°F | SL- 10 hours HD/RT- 8 hours |
| Working Time at 70ºF | SL- 20 minutes HD/RT- 25 minutes |
| Volatile Organic Compound | (VOC) nil |
| Physical Property | Test Method | HD | SL |
|---|---|---|---|
| Hardness (Shore D) | ASTM D-2240 | 80 | 80 |
| Adhesion | ASTM D-4541 | >400 psi, substrate fails | >400 psi, substrate fails |
| Impact Resistance | ASTM D-2794 | >160 in./lb. | >160 in./lb. |
| Water Absorption | ASTM D-570 | <0.1% | <0.1% |
| Flammability | ASTM E-648 | Class 1 | Class 1 |
| Abrasion Resistance: CS17 Wheel 1000 GM Load 1000 Cycles | ASTM D-4060 | 50 mg loss | 30 mg loss |
| Coefficient of Friction (James Friction Tester) Wet Dry | ASTM D-2047 | 0.9 (smooth) 0.9 (smooth) | 0.6 (smooth) 0.7 (smooth) |
| Heat Resistance Limitation Thermal Cycling (5 min. interval) (10 min. interval) Continuous Heat | Hot Oil (400°F) to Ice Water (25°F) Hot Oil (400°F) to Ice Water (25°F) 1 hour 300°F Hot Oil Submersion | 40 cycles – no effect 40 cycles – no effect no effect | |
| ASTM C-579 | 9,000 psi | 9,500 psi | |
| Tensile Strength | ASTM C-307 | 1,000 psi | 1,500 psi |
| Flexural Strength | ASTM C-580 | 3,500 psi | 2,200 psi |
| Flexural Modulus of Elasticity | ASTM C-580 | 2.6 × 10 6 psi | 2.6 × 10 6 psi |
| Thermal Coefficient of Linear Expansion | ASTM C-531 | 1.1 × 10 -5 in./in.°F | 1.1 × 10 -5 in./in.°F |
JOINT GUIDELINES
Refer to the Joint Guidelines for complete details on our website.
MIXING INSTRUCTIONS
Application Equipment:
- Personal Protective Equipment (PPE) & clothing per SDS (Safety Data Sheet)
- Jiffy® Mixer Blade (ES Model)
- Clean Mixing Container
- Low Speed/High Torque Power Drill
- Shed-Resistant Roller Cover - 3/8" Nap
- Application Squeegee, Cam Rake, or Screed Box
- Loop Roller (up to 1/8" SL, greater than 1/8" use plastic spiked roller)Mix ratio for a kit of ProKrete is 1 unit of Resin, 1 unit of Hardener, and 1 bag of Aggregate. 8 oz. of pigment is recommended in a kit of ProKrete SL and 4 oz. in ProKrete HD/RT. ProColor CU is available in Tile Red, Medium or Dark Grey. When tinting ProKrete, the colorant should be added into the resin component. When mixing, be sure to add the resin into a clean mixing container before adding the hardener, and scraping it out completely from its container into the resin. Mix for 30 seconds before slowly adding the bag of aggregate. Always pour into the center of the mixing container. Mix all three components for 1 minute with a Jiffler style mix blade for SL, RT and TF products. For HD, use a Rotary Pail mixer for best results. Mix only enough material at one time that can be applied without exceeding the pot life. It is recommended to pour the entire contents of the bucket out onto the floor for maximum working time. Please note that material left in the bucket will “exotherm” and reduce working time significantly. This is very important if room/floor temperatures exceed 70ºF during installation.
CLEANING GUIDELINES & MAINTENANCE
Allow floor coating to cure at least one week before cleaning by mechanical means (e.g., sweeper, scrubber, disc machine).
CARE
Proper maintenance will increase the service life and help maintain the appearance of your new ProREZ floor coating system. This product is considered to be a low maintenance coating system, however, certain textures and service environments require specific procedures. SEE “CLEANING GUIDELINES” for more information.
CAUTION
Avoid scratching or gouging the surface. All floor coatings will scratch if heavy or sharp objects are dragged across the surface. Do not drop heavy or pointed items on the floor as this may cause chipping or concrete pop-outs in the case of a weak substrate cap. Rubber tires
can permanently stain the floor coating from plasticizer migration. In warehouse & industrial settings, the use of non-marking tires is highly recommended to prevent discoloration. Rubber burns from quick stops and starts can heat the coating to its softening temperature, causing permanent marking.
REPAIRS
Repair gouges or scratches or chip outs as soon as possible to prevent moisture or chemical contamination.
DISPOSAL
Dispose in accordance with federal, state and local regulations.
TECHNICAL SUPPORT
For any application questions, please call ProREZ technical support at 877.511.3456.
SDS
PLEASE SEE SAFETY DATA SHEET (SDS) FOR SAFETY AND PRECAUTIONS. USE PRODUCT AS DIRECTED. KEEP OUT OF
