Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Application Area
- Uses
KM Acryl 40 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 40 can be used on conventional BUR and smooth/granulated modified bitumen membranes and also over most thermoplastic, thermoset, and metals. When applied over asphaltic surfaces, KM Acryl 40 offers resistance to asphalt staining (“bleed through” resistance). KM Acryl 40 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.
- 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. To field tint this product, please use a water-based, exterior-grade pigment.
• KM Acryl 40 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 40 at 24 wet mils (1.5 gallons per 100 square feet) per coat. Typical application conditions require KM Acryl 40 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. Newly applied Asphalt Emulsion can typically be coated once emulsion has cured, usually 5 to 7 days depending on weather and rate of emulsion application.- Spray Equipment
KM Acryl 40 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 | |
| Solids Volume | 50 - 54 | % | ASTM D2697 |
| Solids Volume | 61 - 65 | % | ASTM D1644 |
| Elongation | 311 - 411 | % | ASTM D2370 |
| Tensile Strength | 492 - 592 | psi | ASTM D2370 |
| Permeance | 6.0 | perms | ASTM D1653 |
| Viscosity (77°F, 25°C) | 28,000 - 58,000 | cP | ASTM D2196 |
| Dry Film Thickness (1 Gal/100 ft²) | 8.3 | mils | - |
| Dry Time (hours) | 4 - 6 | hours | - |
| Volatile Organic Compound (VOC) | max. 30 | g/l | - |
| pH | 9.0 | - | - |
| Weight Per Galllon | 10.5 - 11.5 | lb | ASTM D2939 |
Regulatory & Compliance
- Certifications & Compliance
- Codes and Standards
• ASTM D6083 Type II
• UL Classified - File #R20755
• Can be used to comply with 2016 Title 24 Part 6 Cool Roof Requirements (White only)
• CRRC listed (White only)
Packaging & Availability
- Packaging
5GA pail, 55GA drum, 250GA tote
- Standard Colors
KM Acryl 40 is available in White, Gray, and Standard Tan.
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.