Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Type (Proprietary Hybrid Polymer)
- Urethane-Modified-Epoxy
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlight
- Uroflex has been designed to specifically protect and outperform in immersive environments, which are susceptible to corrosive exposure, microbial and various chemical attack.
- Uroflex is a urethane-modified-epoxy (UME) coating, incorporating cycloaliphatic curing agents for enhanced chemical resistance and crosslinking.
- It possesses superior adhesion, good surface forgiveness of an epoxy, combined with the flexibility (approx. 15% tensile elongation), UV and impact tolerance of a urethane - combined as one technology.
- Because Uroflex can be applied by brush, roller, or spray; it provides applicators advantageous usability options and ease of application.
- Features
- “Green” - 100% solids, no VOCs
- Excellent resistance to H2S
- Good abrasion resistance
- Self-priming
- Medium-to-high build film
- Semi-flexible with formulated resilience
- Good impact strength
- Cold temperature performance
- Self-leveling
- Easy to apply by roller, brush or spray
- 1:1 mix ratio by volume
- Unique Formulation
- Epoxytec is privileged to have expert organic blending experience with specific material chemists on staff who specialize in modification and hybrid technologies utilizing epoxide.
- The Uroflex is truly unique, as it is an epoxy incorporating a blend of novolac (hybrid-novolac resin), and urethane; this results in a urethane-modified-epoxy (UME) blend with novolac.
- This mixture produces a semi-flexible epoxy, with tighter crosslinking, thus providing the best of all properties that urethanes provide without losing all the benefits an epoxy provides.
- When cured, Uroflex is epoxy with enhanced chemical resistance from the novolac, enhanced flexibility, sheen, gloss, and density from its urethane modification.
- Features & Benefits
“Green,” Environmentally Friendly With No VOCs, No Solvents, 100% Solid:
- The Uroflex material releases zero VOCs and zero solvents; therefore creating human-friendly and environmentally safe applications.
- Its ease of application also contributes to a near‐zero carbon footprint.
Flexible, With 38% Tensile Elongation:
- Using a proprietary blend, urethane-modified-epoxy; the product can withstand expansion and contraction, as well as vibration from the substrate without cracking or splitting.
- 38% elongation makes the product more tolerant to tank movement, steel and concrete expansion/contraction and hairline cracking, traffic and ground movement, etc. (more generic epoxies typically yield somewhere between 3% - 6% tensile elongation, making them quite rigid)
Adhesion:
- Adhesion is one of the most important features of any coating in preventing corrosion in the long term.
- Uroflex is self-priming and has excellent adhesion up to 2,000 psi on steel and substrate breaking bond strength on concrete (greater than the cohesive strength of the concrete itself).
Forgiving & Surface Tolerant:
- This is where Uroflex shines.
- Uroflex has been proven to be surface friendly.
- The coating can often bridge the gap when unknown environmental control limitations occur (often happening unintentionally), the coating is able to be applied and outperform better than typical surface-sensitive competitive products.
Self-Leveling & High Gloss:
- This is important for several reasons.
- The urethane modification to the epoxy makes the coating UV tolerant (great for above-ground structures).
- The high gloss finish of Uroflex is easy to clean, keeping offending buildup and other contaminants from damaging the coating.
- Its self-leveling capabilities allow the coating to "wet" the surface properly and fill bungholes and cracks adequately.
- Also the urethane crosslinking provides the Uroflex increased impermeability characteristics, making it a long-lasting durable sealed system.
High Build (16 to 50 Mils in a Single Pass):
- What this means to the applicator is that they can apply a thick coating the first time and eliminate multiple coatings costing time and labor, which results in costing money.
Durable & Resistant:
- While Uroflex has proven itself as a simple 2-coat system.
- Resists corrosives, seals, and creates a barrier to infiltration or exfiltration.
Repairable:
- Uroflex coating is a system that can be recoated, repaired, and touched up without complicated preparation- simply clean and degrease, and solvent rub.
- Maximum recoatability would be recommended with light abrasion.
- This makes having a preventive maintenance program feasible budgeted life-cycles; requiring simple visual inspection and touch-up (often just with a brush) when needed.
- Doing this can extend the life expectancy for decades with minimal investment and uncomplicated application.
Applications & Uses
- Applications
- Typical Uses
- Uroflex has been proven in many aggressive enclosed, immersive, and partially opened environments.
- Uroflex performs in areas subject to corrosion.
Ideally Suited as a Protective Coating/Lining Solution for:
- Sewer collection and wastewater treatment structures, tanks, pipes, stations, manholes, etc.
- Monolithic coating & lining to protect against H2S.
- Protection against corrosion for steel, concrete and other substrates.
- Industrial lining and coating applications.
- Film Thickness
- Uroflex can be applied onto a cementitious surface at 16 mils (minimum) to 25 mils (maximum by roller/brush) or 50 mils (maximum by spray) per coat at 77F.
- For a total coating thickness exceeding 25 mils (by roller/brush) or 50 mils (by spray), multiple coats are necessary.
- Note: Uroflex is designed as a multiple coat system, with a minimum two coats recommended.
- Uroflex can be applied onto a metallic surface at 16 mils (minimum) to 20 mils (maximum by roller/brush) or 30 mils (maximum by spray) per coat at 77F.
- For a total coating thickness exceeding 20 mils (by roller/brush) or 30 mils (by spray), multiple coats are necessary.
- Note: Uroflex has self-leveling properties and will pull back from profile peaks and settle into the valleys as it levels; therefore, if the substrate has extreme peaks, take precautions as edges may require repeated coats.
- Theoretical Coverage
- Uroflex is a 100% solid coating that will not shrink.
- The theoretical coverage properties between wet film thickness (WFT) and dry film thickness (DFT) are the same.
- 100 ft2/gal at 16 mils or 80 ft2/gal at 20 mils or 64 ft2/gal at 25 mils.
- Actual coverage will depend on surface conditions, irregularities, and surface profile.
- Surface Preparation
- The success of any coating application is directly proportional to the completeness of the substrate preparation and the care the application crew puts into the application.
- Surface must be clean, dry and sound.
- Remove all dust, contaminants, grease, curing compounds, rust, impregnation, waxes, foreign particles, and disintegrated materials from the surface, in order to achieve a clean, dry and profiled surface.
Concrete:
- Prepare the substrate by abrasive blasting, high pressure water cleaning, and/or approved mechanical methods to achieve a clean, sound, dry and profiled substrate.
- Prepare substrate in accordance with SSPC-SP 13/NACE No. 6, “Surface Preparation of Concrete;” with an ICRI CSP profile of 2-3.
- Although priming is not required, in some cases when suspecting excessive moisture vapor transmission (MVT), out-gassing, or other impediments - an Epoxytec recommended primer may be considered - consult with Epoxytec for primer recommendations based on conditions.
- Note: Epoxytec recommends the use of the Epoxytec Mortartec™ Series as the base underlayment resurfacer to serve as a uniformed underlayment; depending on conditions, high density resurfacers can aid in mitigating outgassing and MVT- consult with Epoxytec on resurfacer recommendations or refer to relevant design system specifications.
Metal:
- Before preparing steel, please inspect and remove oil, grease, or other contaminants - “Solvent Cleaning” (SSPC-SP1) may be required.
- Grind any weld spatter or steel weld inconsistencies.
- Abrasive blasting (or other approved mechanical methods) to SSPC-SP10/NACE 2 “Near-White Blast Cleaning” must be used in order to achieve a clean surface with a minimum profile of 75 microns (3 mils); remove dust and debris by high compressive air or solvent cleaning (SSPC-SP1) may be required again.
- Note: Epoxytec primers may be advised should the substrate be susceptible to flash-rusting, to stripe coat any edges or bends in the metal for enhancing peak retention, or should the metal not possess the characteristics to achieve optimal profiling capability.
- Consult with Epoxytec for recommended primers from the Epoxytec Primecoat™ Series.
- Application Method
- Mix 1-to-1 by volume and be aware of pot life (higher temperature and mass accelerates pot life).
- Options: Brush, rollers (shred-resistant), squeegee, airless/air-assisted airless, and/or plural component spray airless/air-assisted airless equipment.
- Heated lines and guns could be used, but not required.
- Epoxytec recommends Uroflex as a two-coat system.
- Note: If spraying, Epoxytec recommends at minimal the use of a 0.023” orifice spray tip or greater, 45:1 ratio spray pump or greater, 3/8” hoses, with 1/4” whip.
- Other options available: Epoxytec EZ-Spray System (disposable cartridge spraying).
- Thinning
To thin Uroflex, Epoxytec only permits the use of Epoxytec #1 Reduction or Epoxytec Cut5, not to exceed 3% by volume.
- Applications
1‐to‐1 Mix Ratio:
- What this means to the applicator is that it is easy to mix, with no complicated mix ratio, meaning less room for human error, higher installation success.
Ease of Application:
- Uroflex can be applied by brush, roller or spray, when other coatings require expensive application systems that range from $50,000 to over $100,000 per spray rig.
Properties
- Component A
- Component B
- Technical Data
- Recoat Window
- Dry-to-touch (approx. 6 hr. at 25°C) min. - 24 hrs. max. for optimum bonding and to minimize the occurrence of blushing.
- At the earliest ensures less risk.
- Note: Should recoat window pass, low-pressure water cleaning would be recommended and towel dry to remove water and residue.
- In some cases, solvent rubbing and/or light abrasion may be recommended.
| Value | Units | Test Method / Conditions | |
| Mix Ratio by Volume | 1.0 | — | — |
| Mix Ratio by Weight | 1.4 | — | — |
| Viscosity (25°C) | 27500.0 | cps | ASTM D2196 |
| Value | Units | Test Method / Conditions | |
| Mix Ratio by Volume | 1.0 | — | — |
| Mix Ratio by Weight | 1.0 | — | — |
| Viscosity (25°C) | 1800.0 | cps | ASTM D2196 |
| Value | Units | Test Method / Conditions | |
| Finish | Gloss | — | — |
| Solids by Volume | 100.0 | % | ASTM D2697 |
| Flash Point | 255.0 | °F | ASTM D3278 |
| Viscosity (A & B Mixed, 25°C) | 17200.0 | cps | ASTM D2196 |
| Adhesion Strength (Concrete, Dry) | Substrate Failure | — | ASTM D4541 (CIGMAT CT-2/3) |
| Adhesion Strength (Concrete/Brick, Wet) | Substrate Failure | — | ASTM D4541 (CIGMAT CT-2/3) |
| Adhesion Strength (Steel) | 2000.0 | psi | ASTM D4541 |
| Potable Drinking Water | Conforms | — | ANSI/NSF-61 |
| Water Absorption | max. 0.1 | g/sq.m. | ASTM D1653 |
| Acid Exposure (pH-1, H2SO4) | Passed | — | CIGMAT CT-1 |
| Hydrogen Sulfide (H2S) | 800.0 | ppm | — |
| Tensile Strength | 5873.0 | psi | ASTM D638 |
| Flexural Modulus | 58200.0 | psi | ASTM D790 |
| Flexural Strength | 8339.0 | psi | ASTM D790 |
| Compressive Strength | 7225.0 | psi | ASTM D695 |
| Hardness | 70.0 | Shore D | ASTM D2240 |
| Elongation | 10 - 15 | % | ASTM D2370 |
| Cure Time (25°C) | 24.0 | hours | — |
| Operational Temperature | 40 - 120 | °F | — |
| Temperature Exposure (Dry) | 0 - 160 | °F | — |
| Temperature Exposure (Wet) | 0 - 140 | °F | — |
Technical Details & Test Data
- Proven & Tested
- Probably the most important aspect of any coating is its proven application and effectiveness in different environments.
- Uroflex has proven itself since 1989 with excellent results in some of the most severe environments known, with less than 0.1% touch‐up after 10 years, and the ability to renew with minor investment.
- Beyond the typical ASTM testing for protective coatings, Epoxytec has participated in a variety of 3 party testing.
- Epoxytec Uroflex is CIGMAT tested by the Department of Civil and Environmental Engineering at the University of Houston for construction and rehabilitation of civil infrastructure, undergoing a battery of modified, specific industry testing.
- Among other modified ASTM testing, noteworthy results came without ideal preparation- bond strength to wet concrete/brick, and sulfuric testing to verify ultra-high resistance to H2S.
- Epoxytec Uroflex is approved by the Bureau of Petroleum Storage Systems for containment (EQ#‐793).
Packaging & Availability
- Packaging & Color
4 Gallon Kit (Pails)
Item# UME38-G4-R (Red) Item# UME38-G4-T (Tan) 600mL Dual Cartridges (Box of 12)
Item# UME38-B600-R (Red) Item# UME38-8600-T (Tan)
Storage & Handling
- Pot Life (25°C, 200g Mass)
- 25 minutes
- Storage & Handling
- Shelf life - 24 months, sealed.
- Store in a dry area away from direct sunlight.
- The material should be conditioned to between 75ºF and 90ºF before use.