Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
- Composition & Materials
A monolithic membrane is created in the field by combining the KEMPEROL® BRM, cold-applied liquid polyester resin and catalyst powder with KEMPEROL® polyester reinforcing fleece. Membrane may be applied using standard fleece available in 4, 8, 10, 13, 20, 27, and 41-inch nominal widths.
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Application Area
- Use
KEMPEROL® BRM membranes are suitable for a wide range of exterior waterproofing applications, including insulated roof assemblies, inverted roof assemblies, green roofs, plazas and beneath hot asphalt pavement.
- Limitations
KEMPEROL® BRM may be applied only when the ambient temperature is 35°F (2°C) and rising, and the substrate temperature is a minimum of 5°F above the dew point. The maximum application temperature is approximately 105°F (40°C).
Without additional protection, KEMPEROL® is not resistant to hydrocarbon solvents or alkalines greater than pH 10, which should be removed from the membrane immediately.
- Yield
- Using 165 Fleece: 33 s.f. (3.0 m2 ) per 10 kg work pack; 66 s.f. (6.0 m2 ) per 20 kg work pack.
- Using 200 Fleece: 28 s.f. (2.6 m2 ) per 10 kg work pack; 56 s.f. (5.2 m2 ) per 20 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 is quickly achieved with the application of KEMPERTEC® D Primer, EP Primer or BSF-R Primer and temporary joint filler. Alternatively, the use of quick-dry KEMPERTEC® AC Primer, R Primer, or EP5 Primer may allow same-day membrane application. KEMPERTEC® primer may be brushed or rolled onto any clean and prepared surface.
Allow primer to cure completely prior to application of the KEMPEROL® membrane.
- Mixing of Resin
Note: Prior to opening the containers of KEMPEROL® BRM Resin, wear appropriate safety glasses and protect hands and wrists by wearing gauntlet-type neoprene gloves.
Step 1: Mix the liquid resin with a spiral KEMPEROL® agitator until the liquid is a uniform color, with no light or dark streaks present. If the ambient temperature is below 50°F (10°C) or above 75°F (24°C), then a weather-related additive should be combined and mixed with the liquid resin.
- KEMPEROL® UP-A Cold Activator should be added to the liquid resin when the ambient temperature is below 50°F (10°C). The activator should be mixed with the spiral agitator for 5 minutes or until both liquids are thoroughly blended.
- KEMPEROL® UP-I Inhibitor should be added to the liquid resin when the temperature exceeds 75°F (24°C). The mixing instructions are the same as the cold activator.
Step 2: Add the Catalyst Powder to the liquid resin and mix with the same agitator for two minutes or until the powder is completely mixed throughout the liquid resin.
Note: It is not necessary to wait for the catalyst powder to dissolve before using the BRM Resin.
- Application
Step 1: After the Resin is mixed, evenly roll or brush apply 2/3 of the resin on to the surface.
Step 2: Then roll the KEMPEROL® Fleece directly into the Resin, avoiding any folds and wrinkles. Use the roller to work the resin into the fleece, saturating from the bottom up. The appearance of the fleece should be a light translucent amber with no white spots. White spots are indications of unsaturated fleece or lack of adhesion. It is important to correct these faults before the resin cures.
Step 3: Add the the remaining 1/3 of the resin to the top of the fleece and complete the saturation. Roll this final coating into the fleece, which will result in a glossy appearance. The fleece can only hold so much resin and all excess should be rolled forward to the unsaturated fleece. Any excess resin left on the top of the fleece will weather and peel off. The correct amount of Resin will completely saturate the Fleece and no white color will be visible.
- Overburden
KEMPEROL® BR membrane must receive an alkalinity barrier before an application of a concrete overburden. The membrane must be allowed to fully cure, typically 2-3 days, prior to application of alkalinity protection, consisting of Kempertec EP, EP5, or AC primers with Kiln-dried silica sand.. The surface of the membrane must first be prepared by means of pressure washing with a heavy duty, PH-neutral professional grade cleaner, scrubbing, and thoroughly rinsing to remove the paraffin film developed during the curing process and any other contaminants.
Properties
- Physical Form
- 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 overburden after* | 2 - 3 | days | - |
| Can be Driven on After* | 24.0 | hours | - |
| Completely Hardened* | 3.0 | days | - |
| Crack Spanning | 2.0 | mm | - |
| Dimensional Stability (6hrs, 158ºF) | 0.1 | % | ASTM D1204 |
| Elongation | 55.0 | % | ASTM D751 B |
| Impact Resistance | 78.0 | Shore A | ASTM D2240 |
| Puncture Resistance | 150.0 | lbf | FTMS 101-2031 |
| Short Term Temperature Resistance | 482.0 | °F | - |
| Solid to Walk on After* | 6.0 | hours | - |
| Tearing Resistance | 8.6 | lbs | ASTM D751 Elmendorf |
| Tensile Strength (Break) | 90.0 | lb/in | ASTM D751 |
| Thickness (165 Fleece) | 70.0 | mils | ASTM D751 |
| Thickness (200 Fleece) | 80.0 | mils | ASTM D751 |
| Usage time* | 15.0 | minutes | - |
| VOC Content | 42.0 | g/l | - |
| Water Absorption (72 hrs, 158°F) | 2.0 | % | ASTM D471 |
| Water Resistant After* | 30.0 | minutes | - |
| Water Vapor Transmission | 0.27 | perms | ASTM E96 |
| Value | Units | Test Method / Conditions | |
| Flash Point (Liquid Component) | min. 90 | °F | - |
| Specific Density (Catalyst Powder) | 0.55 | - | - |
| Specific Density (Liquid Component) | 1.16 | - | - |
| Viscosity (Liquid Component) | 4000.0 | - | - |
Packaging & Availability
- Packaging Type
- Ordering Information
20 Kg Workpack (Resin + Cat Powder) Item # 202-77-205
Item # Size: Resin 19.4Kg / 4.42 US GAL (16.73L)
202-77-201 Catalyst Powder 600 g bag
AKZO-77-252 10 Kg Workpack (Resin + Cat Powder) Item # 200-77-105
Item # Size: Resin 9.7Kg / 2.21 US GAL (8.37L)
200-77-101 Catalyst Powder 300 g bag
AKZO-44-254
Storage & Handling
- Storage
Always store in cool and dry location. Do not store in direct sunlight or in temperatures below 35°F (1.7°C) or above 80°F (27°C). Approximate shelf life 6 months with proper storage. Catalyst Powder must be stored separately.
For best use, 24 hours before application, the material is to be acclimated at temperatures between 65-70°F (18-21°C).
- Disposal
Cured BRM resin may be disposed of in standard landfills. This is accomplished by thoroughly mixing all components. Note: Uncured BRM resin is considered a hazardous material and must be handled as such, in accordance with local, state and federal regulations. Do not throw uncured resin away