Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Features
- Non-Gassing
- Fast curing
- Seamless membrane
- Applied at almost any thickness
Applications & Uses
- Applications
- Application Area
- Typical Uses
- Parking Decks
- Concrete
- Pedestrian Decks
- Plywood
- Elastomeric Roofing
- Masonry
- Ship Decks
- Metal
- Under Tile
- Sloping and Concrete Repairs
Prior to the membrane application concrete repairs can be made with a sand or rubber slurry mixture consisting of 1 volume of properly mixed (with water) TUFFLEX STANDARD OUTDOOR “RBC” (see mixing instructions below) to 1 volume clean graded sand or ½ volume rubber granules. By use of the Green Catalyst, light foot traffic is allowed over the repaired areas in as little as 2-4 hours (depending on weather conditions). TUFFLEX STANDARD OUTDOOR “RBC” can be thickened into a paste consistency (after adding water) by adding up to 15% by volume of fine rubber powder.
- Coverage Rate
Five (5) gallons of TUFFLEX STANDARD OUTDOOR “RBC” when properly mixed with one gallon of water will provide 34-36 dry mils of coverage when applied over a 200 square feet area. Porous Plywood or uneven surfaces often require the addition of 60 mesh or 30 mesh bonding aggregate broadcast into the TUFF-POXY Primer. These conditions may also require additional TUFFLEX STANDARD OUTDOOR “RBC” material to achieve the same dry film mil thickness.
- Mixing
Before application, briefly premix TUFFLEX STANDARD OUTDOOR “RBC” Resin Binder using a mechanical mixer (Jiffy Mixer) at slow speeds. Add the optional TUFFLEX Green Resin Binder Catalyst (for a rapid cure) and then add the water and mix thoroughly until a homogenous mixture is obtained. Use care not to allow the entrapment of air into the mixture.
- Surface Preparation
All surfaces to be coated with TUFFLEX STANDARD OUTDOOR “RBC” must be free of any and all contamination including paint and concrete, and should always be primed. New traffic bearing concrete surfaces are often shotblasted, high pressured water blasted or etched with a 15% to 20% solution of muriatic acid to remove laitance and impurities. (After the acid has ceased boiling, immediately neutralize with a diluted solution of ammonia and water. High pressure wash with water in order to remove all cleaning chemical contaminants). New concrete should be cured for a minimum of 28 days and should have a minimum of 3000 psi compressive strength. The only permissible curing compounds (if used) are of the pure sodium silicate type. The use of other curing agents will always require job site pre-application testing and possibly removal by grinding
- Application Condition
All application conditions require priming. Use TUFF-POXY Primer # 1 (solvent free), TUFF-POXY Primer # 2 (standard VOC) or Primer #3 (low VOC). Many situations will require the use of 30 mesh or 60 mesh bonding aggregate. Allow the primer to properly cure until firm and only tacky prior to application of the TUFFLEX STANDARD OUTDOOR “RBC” membrane system. Apply the primers at the rate of 250-350 square feet per mixed gallon. Thorough mixing of the base component and the water component is critical to a successful application and should be performed with a slow speed power mixer such as a model KOL mixer with a “jiffy blade”. Mix TUFFLEX STANDARD OUTDOOR “RBC” with water (this means water must be added) at a ratio of ½ gallon of water to 2 ½ gallons (1/2 Pail) of TUFFLEX STANDARD OUTDOOR “RBC” Resin Binder. This will yield 3 gallons of liquid membrane. The mixing ratio is 5 PARTS TUFFLEX STANDARD OUTDOOR “RBC” RESIN BINDER TO 1 PART OF WATER (5:1).
- Application
All concrete, metal and old plywood surfaces should be primed the same day as the TUFFLEX STANDARD OUTDOOR “RBC” is installed. If there will be a 24 hour to 36 hour delay before the base membrane installation the primer must receive a full broadcast of bonding aggregate. Apply the properly mixed and catalyzed TUFFLEX STANDARD OUTDOOR “RBC” evenly over the entire deck. For best results use a squeegee or a notched trowel followed by backrolling Application should proceed rapidly and be continuous across the entire deck to ensure a smooth and even coat. An aggregate of 14-30 mesh rubber granules may be broadcast into the TUFFLEX STANDARD OUTDOOR “RBC” liquid membrane at a rate of 10 lbs. per 100 square feet or to refusal. The amount of rubber used will vary. When a rigid texture is desired, 20-40 mesh flint shot silica aggregate may be broadcast to refusal into a 2 nd application or Aggregate Binding Coat of TUFFLEX STANDARD OUTDOOR “RBC” or into the first layer of COLORCOAT AL-Ester Top Coat.
- Curing
Allow each layer of properly mixed and catalyzed membrane to cure a minimum of 3-8 hours and until firm before proceeding with subsequent coats.
- Limitations
Using a clear topcoat over this membrane may result in a cloudy, milky finish unless the TUFFLEX STANDARD OUTDOOR “RBC” is sealed initially with an aggregate binding coat of pigmented COLORCOAT AL-ESTER or ELASTA-TUFF 6000-AL. TUFFLEX STANDARD OUTDOOR “RBC” is not UV stable and must have a topcoat applied. Surfaces to be coated must be dry, clean and free of foreign matter. Do not apply if surface or air temperatures are below 50F or above 90F. Cured surface may be slippery when wet. Therefore proper surface texturing and traffic enhancement is important. TUFFLEX STANDARD OUTDOOR “RBC” requires proper flashing and flashing reinforcement, proper priming and proper perimeter detailing work. TUFFLEX STANDARD OUTDOOR “RBC” is a fast curing material and must be applied immediately after thoroughly mixing with water. Containers that have been opened should be used as soon as possible.
Properties
- Physical Form
- Pot Life (77°F)
- 22 - 28 Minutes
- Technical Data
| Value | Units | Test Method / Conditions | |
| Solid Content | 90 - 94 | — | — |
| VOC Content | max. 100 | g/l | — |
| Flash Point | min. 120 | °F | ASTM D-3278 |
| Tensile Strength | 1050 - 1350 | psi | ASTM D-412 |
| Ultimate Elongation | 500 - 700 | % | ASTM D-412 |
| Hardness | 55 - 65 | Shore A | ASTM D-2240 |
| Coverage (50 mils) | 25.0 | sq.ft./gal | — |
| Chemical Resistance (Commonly Encountered Acids, Salts, and Oils) | Good Resistance | — | — |
| Low Temperature (Brittleness, 0°F) | Pass | ASTM D-746 | — |
| Gel Time (77°F) | 35 - 40 | mins. | — |
| Weight | 9.3 | lbs./gal | — |
Safety & Health
- Precautions
This product contains aromatics isocyanates and a small amount of petroleum based solvents. Read the container-warning labels carefully. Exposure to isocyanates and petroleum solvents may cause allergic skin and respiratory reaction. Personnel applying isocyanate prepolymers should wear protective, clothing, goggles and gloves and should use only with adequate ventilation and respiratory protective gear. Avoid contact of material with skin or eyes and avoid breathing vapors. Mix and apply only in well-ventilated areas.
Packaging & Availability
- Packaging Type
- Available Packaging
- 5 gallon (18.9 liter) pail with 1 vial of optional Green Catalyst
Storage & Handling
- Storage
TUFFLEX STANDARD OUTDOOR “RBC” has a shelf life of six (6) months from date of manufacture in original, factory sealed plastic containers and nine (9) months in original, factory sealed metal containers when stored indoors at 77° F.