Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Benefits of RC 1900 Aliphatic Polyurethane (Top Coat)
- Durability: Resist acids, alkali and salts for longer product lifespan.
- Seal and Waterproof: Eliminate potential wash-off problems with early water resistance.
- Superior Weatherability: Increase longevity with high ozone and UV resistance.
- Thermal Stability: Resist cracking and peeling due to high tolerance of hot and cold weather extremes.
- Easy Application: Spray, roll or brush only one component.
- Extended Application Season: Apply even during colder months, thanks to the superior formula.
Applications & Uses
- Application Area
- Compatible Substrates & Surfaces
- Cure Method
- Clean Up
- Xylene
- Recommended Uses
- RC 1900 was Specifically developed as a bright white protective top coat over a base coat of RC 1975 for EPDM, TPO, PVC, modified bitumen and SPF roof systems.
- With excellent color retention and high durability, RC 1900 is used for protection, waterproofing, solar reflectivity and service life extension of these low slope conventional roof systems.
- Modified and BUR roofs
- EPDM, Hypalon and TPO roofs
- Polyurethane Foam and Concrete surfaces
- General Surface Preperation and Application Instructions
- RC 1900 may be applied by medium nap rollers, soft brushes or conventional airless spray equipment.
- Apply RC 1900 only to clean, dry, sound coating surfaces free of loose particles or other foreign matter.
- Successive and/or topcoats must be applied to the base or intermediate coats within 48 hours to ensure proper adhesion.
- Apply RC 1900 at the rate of 1.25 gallons per 100 sq. ft. per coat.
- Minimum dry mil thickness shall be 25 mils.
- Do not apply if the ambient temperature falls below 50°F.
- Product application should be suspended immediately and our technical service personnel contacted if the results being obtained are less than desirable.
- Limitations & Precautions
- Avoid moisture contamination in sealed containers.
- Store in a dry environment at temperatures between 40 - 85 ºF.
- Keep away from heat, open flame or sparks.
- Use only in well-ventilated areas with proper protective equipment.
- Avoid breathing vapor or mist.
Properties
- Color
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Total Solids by Weight | 77.0 | % | ASTM D1644 |
| Total Solids by Volume | 68.0 | % | ASTM D2697 |
| Weight Per Gallon | 8.3 - 8.7 | lbs per gallon | - |
| Flash Point | 93.0 | °F | - |
| Viscosity | 2000 - 4000 | cPs | - |
| Elongation | 300 - 400 | % | - |
| Hardness | 69.0 | Shore A | - |
| Tensile Strength | 550 - 650 | psi | - |
| Permeance | 0.02 | perms inch | - |
| Service Temperature | -50 to 200 | °F | - |
| Water Absorption | 1.6 | % | - |
| Adhesion | Exceeds Tensile | - | - |
| Solar Reflectance | 86.0 | % | - |
| Thermal Emittance | 89.0 | % | - |
| Dry to Touch (Cure Time) | 6.0 | hours | - |
| Tack Free (Cure Time) | 12 - 16 | hours | - |
| Recoat (Cure Time) | 12 - 16 | hours | - |
Storage & Handling
- Shelf Life
90days at 40 - 90 °F.