Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Applications
- Application Method
- Cure Method
- Typical Uses
- Uroseal 45V is recommended for vertical and overhead use on expansion joints for roadways, slabs, airport runways & taxiways, ring seals (ie: manhole chimney seals, pipe joints, etc H2S resistance up to 800ppm), and industrial & commercial floor slabs.
- It serves well as an impermeable compound for sealing and as a joint sealant for secondary containment structures.
- In addition, when used as a coating, the material offers a monolithic liner.
- Theoretical Coverage
- The following table indicates the number of linear feet filled by one gallon of Uroseal™ 45V for joints of various widths and depths:
Joint Depth
Joint Width 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1" 1/4" 308 205 154 122 102 88 77 3/8" 136 102 82 68 58 51 1/2" 77 61 51 46 38 5/8" 49 41 37 30 3/4" 34 31 25 7/8" 25 22 1" 19 - Uroseal™ 45V is a 100% solid material that will not shrink.
- Therefore, the theoretical coverage properties between wet film thickness (WFT) and dry film thickness (DFT) are the same.
- Eighty (80) square feet (sq.ft.) per gallon (gal.) at 20 mils thick.
- Actual coverage will depend on surface conditions, irregularities, and surface profile.
- Hangs up to 1‐inch vertically, and ½” overhead.
- 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 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 and profiled surface.
Concrete:
- Prepare the concrete by abrasive blasting, high pressure water cleaning, and/or approved mechanical method to achieve clean, sound, and profiled concrete.
- Prepare concrete in accordance with SSPC‐SP 13/NACE No. 6. “Surface Preparation of Concrete.”
- Please consult with Epoxytec for a recommended concrete primer.
Steel:
- Before preparing steel, please inspect and remove oil, grease, or other contaminants - “Solvent Cleaning” (SSPC‐SP1) may be required.
- Remove all sharp peaks, including weld spatter.
- Abrasive blasting (or other approved mechanical methods) must be used in order to achieve a clean surface with a minimum profile of 3 mils.
- Please utilize an Epoxytec recommended primer.
Wood:
- Remove all grease, oil, dirt or other foreign matter by solvent or detergent washing.
- Prepare wood surface by abrasive sanding and washing (allow to dry and prime using an Epoxytec recommended primer).
- Application Method
- To a large extent, the design of the joint depends upon a variety of factors such as the maximum expansion and contraction of the surface materials due to thermal change.
- Where possible Uroseal 45V™ should be applied when the joint is at its median opening so as to obtain the greatest efficiency with subsequent joint movement.
- The dimension of the joint to be sealed must be established in relation to service conditions.
- Uroseal™ 45V has been tested for bond durability at 50% joint movement and exhibited no adhesive or cohesive failure.
- However, industry standards dictate that joint and width design should not exceed 25% movement.
- The joint width may be determined by calculating the change in size of the joint between high and low-temperature extremes and multiplying the change by a factor of four.
- In deep joints, the sealant depth should be controlled by the use of joint‐fillers or back‐up materials.
- The backup material must be compressible, such as a foam Backer‐Rod.
- Where the depth of the joint does not permit use of the Backer‐Rod materials, a bond breaker tape is recommended to prevent three‐point bonding.
- To maintain recommended sealant depth, Backer‐Rod’s installed by compressing and rolling it into a joint channel without stretching lengthwise.
- Backer‐ Rod should be about 1/8” larger in diameter than the width of the joint to allow for compression.
- Uroseal™ 45V does not adhere to the Backer‐Rod, and no separate bond breaker is required.
- Never use fillers/joint bond breaker material impregnated with oils, asphalt, or tar.
- Uroseal 45V™ is supplied in a gel consistency.
- It can be worked by hand directly from the container, transferred to smaller containers, or applied by bulk caulking gun or pumped.
Priming:
- Consult with Epoxytec for recommended primer.
Mixing:
- Uroseal™ 45V is a two‐component material that requires thorough mixing before the application.
- Proper mixing is achieved using a heavy-duty, slow-speed drill, and a mixing paddle such as a “Jiffy Mixer.”
- Four minutes of mixing is adequate to ensure a homogeneous mix.
- Mix units in their entirety.
Cleaning:
- Immediately remove all excess, uncured sealant adjacent to the joint with solvent.
- Thinning
Epoxytec does not advise thinning Uroseal™ 45V.
Properties
- Technical Data
| Value | Units | Test Method / Conditions | |
| Hardness | 45.0 | Shore A | ASTM C92 |
| Artificial Weathering | No Elastomeric Property Changes | — | ASTM 623-89 |
| Freeze/Thaw (No Damage) | 300.0 | cycles | ASTM C666 |
| Bond Durability (No Failure After Extension) | 25.0 | % | ASTM C920-87 |
| Tensile Strength (Rubbers & Thermoset Elastomers) | 240.0 | psi | ASTM D412 |
| Ultimate Elongation | 800.0 | % | ASTM D412 |
| Recovery | 96.0 | % | TT-S-00227E |
| Weight Loss | 4.75 | % | TT-S-00227E |
| Tear Resistance | 44.0 | lbs./in. | ASTM D624-86 |
| Staining | Passes | — | ASTM C920-87 |
| Service Temperature | -40 to 170 | °F | — |
| Initial Cure (80°F) | 5.0 | hours | — |
| Final Cure (80°F) | 48.0 | hours | — |
Packaging & Availability
- Packaging & Color
2 ½ gallon kit (5 x ½ gal. tubs/box) Item# J45V‐K1 (gray)
Storage & Handling
- Storage & Handling
- Shelf life: 6 months, sealed.
- Storage: Store in a dry area away from direct sunlight.
- The product should be conditioned to between 65ºF and 90ºF before use.