Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Provides
- Cathodic (galvanic) protection and long-term barrier effect on metal surfaces.
- High durability protection (more than 25 years) in case of its in systems with Rayston compatible paints.
Applications & Uses
- Markets
- Cure Method
- Recommended Use
Steel:
- For structures, in environments of medium, high corrosivity, very high and extreme (C3, C4, C5 and CX - ISO-12944-2 / 2018).
- For structures immersed in fresh, salty or brackish water, compatible with cathodic protection (Im1; Im2 and Im4 - ISO12944-2 / 2018).
- Compatibility
Depending on the operating conditions, the product can be used with different types of paints.
- Rayston's moisture-cured one-component polyurethanes (PU 1K).
- Polyurethanes two components of Rayston (PU 2K).
- Surface Preparation
Surface Type Minimum Recommended Surface profile Ry5 (30–75 µm) (ISO 8503-1) Ry5 (30–75 µm) (ISO 8503-1) Steel surfaces St 2 (ISO 8501-1) Sa 2½ (ISO 8501-1) - Application
- At temperatures below zero up to -18°C.
- High relative humidity up to 99%.
- No dew point restrictions.
- No restrictions on the maximum repainting time.
- Minimal surface preparation to St2 grade (ISO 8501-1).
- Do not apply in rain or snow, or if the applied material does not have enough time to be dry to the touch, before it rains or snows.
- *At relative humidity below 30%, it is recommended to add Rayston Activator.
- Thickness & Theoretical Spreading Rate
Standard Grade Min. Recommended Max. Dry Film Thickness 80 μm 100 μm 125 μm Wet Film Thickness 120 μm 150 μm 187 μm Theoretical Performance 8.4 m2/l 6.7 m2/l 5.4 m2/l Note: Practical coverage depends on the application conditions, structure to be painted, roughness of the surface and application method.
- Drying Time
Dry Film Thickness 120 μm -5°C 0°C 5°C 10°C 25°C 40°C Dry to touch 1 h 20 min 1 h 45 min 40 min 30 min 20 min Repainted with itself, PU 1K, min dry for handling 13 h 9 h 7 h 30 min 5 h 3 h 1 h 30 min Curing Service 10 d 7 d 5 d Note:
- If the relative humidity decreases, the curing time increases.
- There is no maximum repainting time.
- Rayston Activator can shorten the drying time.
- Drying and curing time determined at controlled temperature and relative humidity 60 - 80%.
- Application Data
Homogenization: It is a single component, before its use, it must be thoroughly homogenized with a low-speed mechanical mixer, avoiding air entrapment. Before opening the cans, it is advisable to ensure that the temperature of the material is at least 3°C above the dew point.
Dilution: Addition of thinner is not normally required. If necessary Raystonthinner or Raystonthinner CC can be added up to 10% by volume.
Note: Failure to use the recommended thinners will result in a possible, the manufacturer is not made reduction in product quality.
Cleaning: All equipment should be cleaned with Raystonthinner Thinner or Raystonthinner CC immediately after the job is complete.
- Application Method
Spray Application: The airless machine is the main method of application. For other spray methods, viscosity correction may be required.
Brush: Brush application recommended for trimming and finishing or small repairs.
Roller: It is not recommended to apply the primer coat with roller. The roller could be used to replenish lack of thickness
Properties
- Color
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Solids (By Volume) | 65 - 69 | % | - |
| Density (20°C) | 2.22 - 2.32 | g/cm³ | - |
| Volatile Organic Content | max. 250 | g/l | - |
| Dry Heat Resistance (Prolonged Exposure) | 145.0 | °C | ASTM D2485 |
| Dry Heat Resistance (Short Term Exposure) | 175.0 | °C | ASTM D2485 |
| Dry Heat Resistance (Under Insulation) | 110.0 | °C | - |
| Air Temperature | -18 to 55 | °C | - |
| Surface Temperature | -18 to 50 | °C | - |
| Relative Humidity | 30 - 99 | % | - |
| Dew Point (Surface must be Dry to the Touch) | No Limitation | - | - |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety
Use with adequate ventilation. Do not inhale aerosol. Avoid contact with skin. After contact with skin, wash immediately with detergent, soap and water. In case of contact with eyes, rinse immediately with water and seek medical advice immediately.
Packaging & Availability
- Packaging
Volume (liters) Size of containers (liters) Comp. A 10 20 Comp. B 10 10
Storage & Handling
- Storage & Shelf Life
The product must be stored in original sealed containers. The storage conditions are to keep the containers in a dry, well ventilated space away from source of heat and ignition.
Storage Temperature From 5 to 30°С Shelf Life 18 months