Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
- Consistency
Both components are a slightly viscous liquid.
Features & Benefits
- Ready-to-Use Product Features
- Benefits
- Mitigates Vapor Drive - Seals concrete and masonry to mitigate vapor drive resulting from high groundwater table or capillary action, and also helps reduce any gas transmission that may occur during rising temperatures. Helps prevent pin-holes, blistering, and delamination of the topcoat caused by vapor drive and out-gassing.
- Applies Quickly and Easily - Simply combine the two components, mix thoroughly and pour the primer onto the specified coverage area, use a squeegee to spread the product, and then back roll to help ensure uniform coverage.
Applications & Uses
- Markets
- Application Area
- Application Method
- Compatible Substrates & Surfaces
- Recommended Uses
GacoFlex E5990 is intended as an optional sealer in Gaco decking applications. This penetrating sealer is specifically formulated for use on concrete and masonry to mitigate vapor drive and control out-gassing that may occur during rising temperatures.
- Theoretical Coverage
When applied to concrete that has been shot blasted or ground to a CSP 2 (concrete surface profile) 1 gal of the combined product will cover 190 ft². When concrete is prepped to CSP 3.1 gal of the combined product will cover 150 ft².
- Application
Thinning
Do not thin product.
Mixing
Mix one container of Part B into a short-filled container of Part A (i.e. mix one quart Part B into short-filled 1 gal container of Part A; or 1 gal Part B into a short-filled 5 gal container of Part A). Scrape sides of container to ensure that all of Part B is emptied into the Part A container. Mix combined product for two (2) minutes with a power mixer and a jiffy type blade. Immediately empty entire contents out onto specified coverage area.
Pot Life
The pot life of this product is eight (8) minutes at 77°F if left in the original container. Pot life will be less at higher ambient temperatures. Combined product will generate excessive heat if left in the container. Material must be poured out of container before gelation occurs.
WARNING: If product is left in container, it will reach a very high temperature and be dangerous to handle
Application
Acceptable substrates for this product are concrete and plywood. Substrates should be clean and dirt free. Concrete must have a CSP 2 or 3. Any CSP greater than 3 will require special permission from Gaco. Use a squeegee to spread product over coverage area and then back roll over entire area to ensure uniform coverage. Do not apply product if substrate is below 50°F or above 110°F.
Top Coating
Apply GacoFlex E5320 at a rate of approximately 1 gal / 400 ft² to achieve 4 wet mils over GacoFlex E5990 as soon as it is thoroughly dry. This level of dryness can be achieved in as little as two hours but may require as long as six hours depending on temperature.
Note: Application rate for GacoFlex E5320 will vary depending on surface texture, additional material may be required to achieve 4 wet mils.
After application, allow GacoFlex E5320 to cure overnight prior to coating with an appropriate GacoFlex polyurethane elastomeric topcoat.
Clean Up
Clean up application tools and equipment promptly with acetone or xylene.
WARNING: Unused product that remains in the container will reach a very high temperature and be dangerous to handle, as will any remaining product that is left on squeegee or roller.
Properties
- Component A
- Typical Properties
- Component B
- Toxicity
Not suitable for contact with edible substances or potable water.
- Applied Product Data
Property Value Adhesion Adheres to most surfaces and must be coated with GacoFlex E5320 before any top-coat is applied. Chemical Resistance Excellent solvent and alkali resistance and good acid resistance. Weatherability Not designed for continuous exterior exposure. Prime with GacoFlex E5320 2-Part Epoxy Primer / Filler, followed by a UV-resistant topcoat such as GacoFlex U64 or GacoFlex U66.
| Value | Units | Test Method / Conditions | |
| Flash Point | min. 200 | °F | - |
| Value | Units | Test Method / Conditions | |
| Solids (By Weight, Nominal) | 100.0 | % | ASTM D1644 |
| Solids (By Volume, Nominal) | 100.0 | % | ASTM D2697 |
| VOC Content | 20.0 | g/L | - |
| Cure Time (To Achieve Maximum Hardness) | 24.0 | h | - |
| Hardness (Cured) | 100.0 | Shore | ASTM D-2240 |
| Water Absorption | max. 4 | % | ASTM D-471 |
| Water Vapor Permeability (50% RH Difference) | 0.1 | perm | ASTM E96 (Procedure B) |
| Value | Units | Test Method / Conditions | |
| Flash Point | min. 200 | °F | - |
Regulatory & Compliance
- Certification
Product certified for Low chemical emissions UlCOM/GC Ul 2818.
Storage & Handling
- Storage Stability
One year when in unopened/sealed container.
NOTE: Protect from freezing in shipment and storage.