Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Manufacture Location
- Buffalo, NY
- Technologies
- Product Families
- Composition & Materials
A monolithic membrane is created in the field by combining the KEMPEROL® 2K FR two-part, cold liquid-applied reactive-cure polyurethane resin with KEMPEROL® polyester reinforcing fleece.
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Use
KEMPEROL® 2K FR membrane is for roofing and flashing applications and it achieves Class A fire rating as part of an assembly in accordance with ASTM E 108 / UL 790.
- Limitations
KEMPEROL® 2K FR may be applied when the ambient temperature is 41°F (5°C) and rising, and the substrate temperature is a minimum of 5 degrees above the dew point. The maximum application temperature is approximately 90°F (32°C).
Note: Viscosity increases with falling temperature. For temperatures below 50°F (10°C), KEMPEROL® A 2K-PUR Accelerator should be added to component A to reduce set time.
- Yield
KEMPEROL® 165 Fleece: 33 ft2 (3 m2 ) per 12.5 kg work pack.
Note: All yields are approximate and may vary depending upon smoothness and absorbency of substrate.
- Surface Preparation
All surfaces must be free from gross irregularities, loose, unsound or foreign material such as dirt, ice, snow, water, grease, oil, release agents, lacquers, or any other condition that would be detrimental to adhesion of the primer and membrane. This requires careful preparation of existing horizontal and vertical substrates; cracks are filled, expansion joints are prepared, flashings are removed or modified, and termination points are determined. Substrates and penetrations are prepared to rigorous industry standards, and may require scarifying, sandblasting or grinding in some cases to achieve a suitable substrate.
- Priming
After substrate preparation, temporary watertightness may be achieved with the application of KEMPERTEC® D Primer or EP Primer and Joint Sealant. Alternatively, the use of quick cure KEMPERTEC® R or EP5 Primer may allow same-day membrane application. Refer to the appropriate KEMPERTEC® primer data sheet for application instructions.
Allow primer to cure completely prior to application of the KEMPEROL® membrane.
Note: Prior to opening the containers of KEMPEROL® 2K FR Resin, wear appropriate safety glasses and protect hands and wrists by wearing gloves.
- Mixing of Resin
Step 1: Mix resin Component A (color formulation) with a spiral agitator until the liquid is a uniform color.
Step 2: If the ambient temperature is below 50°F (10°C), A2K-PUR Accelerator, a cold weather additive, should be mixed into the Component A. The accelerator should be mixed with the spiral agitator for 2 minutes or until both liquids are thoroughly blended.
Step 3: Add hardener Component B (clear formulation) to Component A and mix with a spiral agitator for 2 minutes or until both liquids are thoroughly blended.
Note: Do not break down workpacks into smaller quantities - mix the entire workpack.
- Application
Step 1: After the Resin is mixed, using a KEMPEROL® roller nap or brush apply the resin liberally and evenly onto the surface in even stroke. Covering one working area at a time, between 10 - 15 ft2 .
Step 2: Roll the KEMPEROL® Fleece directly into the Resin, making sure the smooth side is facing up (natural unrolling procedure), avoiding folds and wrinkles. Use the roller or brush to work the resin into the fleece, saturating from the bottom up. The appearance of the fleece should be the color of the resin with no white spots. White spots are indications of unsaturated fleece or lack of adhesion. It is important to correct these areas before proceeding.
Step 3: Apply the remaining 1/2 of the resin to the top of fleece to complete the saturation. Rolling the final coat of resin onto the fleece should result in a glossy appearance. The fleece can only hold so much resin and all excess should be rolled forward to the unsaturated portion of the fleece. The correct amount of resin will completely saturate the fleece with no dry fleece visible. Work wet membrane to avoid any blisters, openings, or lifting at corners, junctions, and transitions. Always assure full resin saturation of fleece.
Properties
- Physical Properties
- Typical Properties
- Conditions
* Values obtained at 73°F, 50% relative humidity, may vary depending upon air flow, humidity and temperature.
| Value | Units | Test Method / Conditions | |
| Apply Coating / Surfacing After* | 16 - 48 | hours | - |
| Apply Overburden After* | 48.0 | hours | - |
| Can be Driven on After* | 48.0 | hours | - |
| Completely Hardened* | 3.0 | days | - |
| Crack Spanning | 2.0 | mm | - |
| Dimensional Stability (Reflect White) | 0.0015 | % | D1204 |
| Elongation | min. 30 | % | D5147 |
| Hydrostatic Resistance | 400.0 | psi | D751 |
| Impact Resistance | 70 - 80 | Shore A | D2240 |
| Low Temperature Crack Bridging (Reflect White Only) | Pass | - | C957/C1305 |
| Peak Load (73°F, Average) | 90.0 | lbf/in | D5147 |
| Puncture Resistance (Reflect White Only) | 56.0 | lbs | D5602 |
| Puncture Resistance (Reflect White Only) | 140.0 | lbs | FTMS 101-2031 |
| Short Term Temperature Resistance | 482.0 | °F | - |
| Solid to Walk on After* | 24.0 | hours | - |
| SRI (Light Gray, Initial) | 51.0 | - | - |
| SRI (Light Gray, Initial) | 61.0 | - | - |
| SRI (Military Beige, 3 Year Aged) | 63.0 | - | - |
| SRI (Military Beige, Initial) | 57.0 | - | - |
| SRI (Patina Green, 3 Year Aged) | 57.0 | - | - |
| SRI (Patina Green, Initial) | 48.0 | - | - |
| SRI (Reflect White, 3 Year Aged) | 98.0 | - | - |
| SRI (Reflect White, Initial) | 110.0 | - | - |
| SRI (Stone Gray, 3 Year Aged) | 25.0 | - | - |
| SRI (Stone Gray, Initial) | 25.0 | - | - |
| Tearing Strength (Other Colors) | 75.0 | lbf | D5147 |
| Tearing Strength (Reflect White Only) | 90.0 | lbf | D5147 |
| Thickness (165 Fleece) | 80.0 | mils | - |
| Usage Time* | 30.0 | minutes | - |
| VOC Content | 2.0 | g/l | - |
| Water Absorption (Reflect White Only) | max. 1 | % | D570 |
| Water Resistant After* | 2.0 | hours | - |
| Water Vapor Transmission | 0.08 | perms | E96 |
| Value | Units | Test Method / Conditions | |
| Biobased Carbon Content | 0.43 | % | ASTM D6866-21 |
| Recycled Content (Post) | 0.0 | % | - |
| Recycled Content (Pre) | 0.0 | % | - |
Packaging & Availability
- Available Colors
Light Gray, Military Beige, Patina Green, Reflect White (Reflect 2K FR), Stone Gray
- Ordering Information
KEMPEROL® 2K FR Light Gray Work Pack:
Item#: Size: 329-50-025 0.51 US GAL (1.93L) • 2.5 kg 329-50-055 1.03 US GAL (3.90L) • 5.0 kg 329-50-105 2.41 US GAL (9.12L) • 12.5 kg KEMPEROL® 2K FR Military Beige Work Pack:
Item#: Size: 329-51-025 0.51 US GAL (1.93L) • 2.5 kg 329-51-055 1.03 US GAL (3.90L) • 5.0 kg 329-51-105 2.41 US GAL (9.12L) • 12.5 kg KEMPEROL® 2K FR Patina Green Work Pack:
Item#: Size: 329-49-025 0.51 US GAL (1.93L) • 2.5 kg 329-49-055 1.03 US GAL (3.90L) • 5.0 kg 329-49-105 2.41 US GAL (9.12L) • 12.5 kg KEMPEROL® 2K FR Reflect White (Reflect 2K FR) Work Pack:
Item#: Size: 329-47-025 0.51 US GAL (1.93L) • 2.5 kg 329-47-055 1.03 US GAL (3.90L) • 5.0 kg 329-47-105 2.41 US GAL (9.12L) • 12.5 kg KEMPEROL® 2K FR Stone Gray Work pack:
Item#: Size: 329-48-025 0.51 US GAL (1.93L) • 2.5 kg 329-48-055 1.03 US GAL (3.90L) • 5.0 kg 329-48-105 2.41 US GAL (9.12L) • 12.5 kg
Storage & Handling
- Storage
Always store in cool and dry location. Do not store in direct sunlight or in temperatures below 50°F (10°C) or above 80°F (27°C). Approximate shelf life 12 months with proper storage.
For best use, 24 hours before application, the material is to be acclimated at temperatures between 65-70°F (18-21°C).
- Disposal
Cured KEMPEROL® 2K FR resin may be disposed of in standard landfills. This is accomplished by thoroughly mixing all components. Uncured KEMPEROL® 2K FR resin must be handled in accordance with local, state and federal regulations. Do not throw uncured resin away