Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Application Area
- Compatible Substrates & Surfaces
- Uses
KM Acryl 25 is designed to protect and seal a variety of roof systems and can be used as either a base or surface coating. When the substrate is properly prepared, KM Acryl 25 can be used on conventional BUR and smooth/granulated modified bitumen membranes; this product is also approved over sprayed polyurethane foam, thermoplastic, thermoset, and most metals. KM Acryl 25 can be applied directly to concrete, exterior-grade plywood and most rigid cover boards. Usage to certain substrates may be limited or require additional preparation. If a faster drying topcoat is desired, KM Acryl 25 is available in a Quick-Set version (KM Acryl 25-QS). KM Acryl 25-QS offers resistance to rain after as little as 20 minutes dry time depending upon ambient temperature and humidity
- Application Instructions
Surface Preparation:
• All surfaces to receive coating must be clean, dry and free from any foreign matter such as dirt, oils, grease or other debris that could inhibit the adhesion capabilities of the newly installed products.
• Metal surfaces that display rusting or other oxidation, to be prepared with a grinder or wire brush as needed to remove surface contaminants.
• Existing roof systems to be visually inspected for conditions that may adversely affect adhesion of performance of newly installed products.
• Visually inspect all metal and non-metal flashings, edges, drains, valleys and through-roof penetrations and repair as needed by project conditions.
• Do not apply to wet or visibly damp surfaces, or surfaces previously covered with coal tar based products or Kynar® finishes.
• Concrete surfaces cured with wax/resin based compounds can inhibit adhesion.
Application
• Mix well prior to application.
• KM Acryl 25 is recommended to be applied with high pressure sprayer for best appearance and coverage, however may be applied by roller or brush applications.
• Apply KM Acryl 25 at 24 wet mils (1.5 gallons per 100 square feet) per coat. Typical application conditions require KM Acryl 25 be applied in two coats at 24 wet mils per coat.
• Allow coating to dry overnight prior to applying second coat.
• To minimize potential voids or pinholes in coating application, apply second coat perpendicular to the first.
• Apply only when ambient temperatures are 50°F and rising. Cold weather could result in uneven application and improper curing of product. Do not apply if there is a threat of inclement weather within 24 hours of application.
• Do not thin product. Do not heat outside of container. Do not apply at temperatures greater than 120°F.
• Prior to using this product on new cap sheets (smooth or granulated), it is recommended to wait 30 days for weathering.- Spray Equipment
KM Acryl 25 can be applied by conventional airless spray equipment designed for the purposes of field application of fluids, paints and coatings. The following minimums are recommended:
Pump: 1 gal/min output; 2,000 psi
Gun/Tip: Airless hand gun with 30 mesh screen. Reversible tip with orifice sizes ranging from .027–.039 and a fan angle of 40° or 50°.
Hose: Minimum inside diameter of high pressure nylon hose of 3⁄8" to 75'; 1⁄2" to 200'.
Refer to equipment manufacturer product guidelines.
Properties
- Typical Physical Properties
| Value | Units | Test Method / Conditions | |
| Viscosity | 28,000 - 58,000 | cP | ASTM D2196 |
| Volume Solids | 53 - 57 | % | ASTM D2697 |
| Weight Solids | 66 - 70 | % | ASTM D1644 |
| Elongation | 225 - 275 | % | ASTM D2370 |
| Tensile Strength | 225 - 325 | psi | ASTM D2370 |
| Permeance | 11 - 17 | perms | ASTM D1653 |
| Water Swell | 11 - 13 | % | ASTM D471 |
| Accelerated Weathering (1,000 hrs,No Cracking, No Checking) | Pass | — | ASTM D4798 |
| Adhesion (12 Approved Substrates) | Pass | psi | ASTM C794 |
| Fungi Resistance (Rating) | Pass | — | ASTM G21 |
| Tear Resistance | 65 - 75 | lbf/in | ASTM D624 |
| Low Temp Flexibility After 1000 hours Weathering (½" Mandrel at -26°C) | Pass | — | ASTM D522 |
| Volatile Organic Compound (VOC) | max. 50 | gm/L | — |
Regulatory & Compliance
- Certifications & Compliance
- Codes and Standards
• Meets or exceeds the requirements of ASTM D6083 Type I and Type II Standard Specification for Liquid Applied Acrylic Coating Used in Roofing.
• UL Classified - File #R20755
• ICC ESR-4942 • Can be used to comply with 2016 Title 24 Part 6 Cool Roof Requirements (white only)
• CRRC listed (white only)
• Texas Department of Insurance
• Florida Building Code
• Miami-Dade County Product Control Approved
Packaging & Availability
- Packaging
5GA pail, 55GA drum, 250GA tote
- Standard Colors
KM Acryl 25 is available in White, Gray, Standard Tan, and Santa Fe Tan. KM Acryl 25 in white is highly reflective and exceeds the minimum standards for California Title 24 reflectivity and emissivity.
Storage & Handling
- Storage and Cleaning
• Product shelf life: Typically 18 months from date of manufacture when properly stored.
• Do not store at temperatures greater than 120°F.
• Store 24 hours at room temperature prior to application.
• Observe normal safeguards for storing and handling of this product prior to and during application.
• Do not allow product to freeze. Discard if any degree of freezing would occur.
• Keep containers covered when not in use.
• Clean equipment and overspray with water.
• Clean hands with waterless hand cleaner.