Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Applications
- Application Area
- Compatible Substrates & Surfaces
- Uses
Elastomeric Roof Coating Systems that use 406 Tru-Grip as the basecoat are ideal for use over aged TPO, Hypalon and PVC roofing membranes that have been weathered at least four years.
- Surface Preparations
Weathered TPO and PVC surfaces accumulate dirt over time and must be cleaned prior to coating with 406 Tru-Grip. Recommended application temperature is 40°F to 120°F. It is particularly important to effectively clean ponded water areas where greater accumulations of dirt can occur. For optimal adhesion and water resistance, water alone is insufficient to clean weathered TPO and PVC membranes properly. Suitable liquid cleaners such as 507 SPC Primer/Wash and 799 Wash-N-Prep Roof Cleaner solutions with water can be spray applied over the entire surface followed by a thorough power washing. Power wash roof surfaces using a pressure of 2,500 to 3,500 psi with a wide fan tip. All residual cleaning agents must be removed, otherwise they will interfere in the adhesion of 406 Tru-Grip. When using liquid cleaning solutions, please refer to the specific product label and MSDS for safe handling information and proper use instructions.
- Application
Mix lightly prior to application of the coating. 406 Tru-Grip may be applied by brush, spray equipment or roller. For applications in higher temperatures (above 90 °F) KARNAK recommends application in multiple thin coats to prevent trapped moisture problems. Commencement of work by the contractor implies his approval of the deck surface. ROLLER / BRUSH APPLICATION Apply with a 3/4" – 1-1/4” nap roller or soft roof brush. SPRAY APPLICATION Utilize a standard paint spray pump or airless spray pump. Equipment manufacturer should be consulted for more complete information. Spray application should be done with a 50% over-spray pattern.
- Coverage Rate
Apply 406 Tru-Grip over the surface at the rate of 1.5 gallons per 100 sq. ft. (24 wet mils). Allow to dry 8-24 hours then apply the selected finish coating. The total dry mil thickness of 406 Tru-Grip and finish coating should be 20 to 24 mils. Coverage will vary depending on the surface to be coated.
Properties
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Weight per Gallon | 11.3 lbs. | - | - |
| Viscosity | 34,100 cps ASTM D2196 Method A | - | - |
| Solids by Weight | 68%, Nominal | - | - |
| Solids by Volume | 53%, Nominal | - | - |
| Color | Light Green Hardness, Shore A | 65.0 | - |
| Elongation | 263%, Nominal ASTM D 2370 | - | - |
| Tensile Strength | 247 PSI, Nominal ASTM D2370 | - | - |
| Tear Resistance | 79 lbs. force/in. ASTM D 624 | - | - |
| Cure Time | 24 to 48 hours @ 77°F and 50% Relative Humidity | - | - |
| Application Temp. | 40°F to 120°F. | - | - |
| Service Temp(Cured Film) | -15°F to 180°F | - | - |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Caution
Do not apply when rain is imminent. Protect from freezing. Coating must be dried before exposure to water. Store in a heated room and keep container covered when not in use. Do not thin. Keep out of reach of children. Avoid prolonged contact with skin. Dispose of in an environmentally safe manner. Cover air intakes during application and while drying. For exterior use only. Cold-process systems and coatings, either emulsion or solvent-based, should only be installed on decks with positive drainage. Per NRCA (National Roofing Contractors Association), “The criteria for judging proper slope for drainage is that there be no evidence of standing water on a deck 48 hours after it stops raining.”
Packaging & Availability
- Packaging Type
- Packaging
Available in 5-gallon pails, 55-gallon drums, and 275-gallon totes.