Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Provides
- Excellent resistance to atmospheric influence and abrasion.
- Improves anticorrosion and barrier properties due to the presence of aluminum pigment.
- Excellent resistance to UV and color stability.
- Long-term protection (more than 25 years) in case of use in systems with other compatible Rayston coatings.
Applications & Uses
- Markets
- Cure Method
- Recommended Use
Steel surfaces:
- For structures in medium, high, very high and extreme atmospheric corrosivity categories (C3, C4, C5 and CX - ISO-12944-2 / 2018).
- For structures immersed in fresh, sea or brackish water compatible with cathodic protection as well (Im1; Im2 and Im4 - ISO12944-2 / 2018).
Non-ferrous metals:
- As an adhesive or protective layer.
- Compatible Coatings
Depending on the operating conditions the material can be used with different types of coatings:
- Single pack, moisture cured polyurethane coatings (1 pack PUR) of Rayston.
- Two-component epoxy (2 pack EP) or polyurethane (2 pack PUR) coatings of Rayston.
- Surface Preparation
Surface Type Minimum Recommended Surface profile Ry5 (30-75 µm) (ISO 8503-1) Ry5 (30-75 µm) (ISO 8503-1) Primed surfaces & Previously painted surfaces P St2; P Ma
ISO 8501-2,
ISO 12944-4P Sa2; PMa
ISO 8501-2½,
ISO 12944-4Steel surfaces St 3 (ISO 8501-1) Sa 2½ (ISO 8501-1) Surfaces of non-ferrous metals and stainless steel Clean with alkaline solution, rinse with water. (SSPC-SP 1) Light surface roughness ISO8501-2, ISO12944-4 Galvanized surfaces Clean with alkaline solution, rinse with water. (SSPC-SP 1) Light surface roughness ISO8501-2, ISO12944-4 Concrete Surfaces SSPC-SP 13 / NACE No. 6 SSPC-SP 13 / NACE No. 6 - Application
- At subzero temperatures down to -18°C.
- At high relative humidity up to 99%.
- With no dew point restrictions.
- With no restriction on the maximum recoating interval.
- Over different type of coating systems.
- Directly to surfaces of ferrous and non-ferrous metals as a single-layer coating as well.
- Do not apply coating during rain or snow, or if precipitation is expected before the applied coating becomes dry to touch.
- At a relative humidity below 30%, it is recommended to use the Rayston Activator.
- Thickness & Theoretical Spreading Rate
Min. Middle Max. Dry Film Thickness 40 μm 70 μm 100 μm Wet Film Thickness 67μm 117 μm 167 μm Spreading Rate 15 m2/l 8.57 m2/l 6 m2/l Note: Practical coverage depends on the application conditions, structure to be painted, roughness of the surface and application method.
- Drying Time
For DFT of 70 µm -10°C 0°C 5°C 10°C 23°C 40°C Dry to touch 4 h 2 h 30 m 1 h 1 h 18 min 12 min Dry to recoat with 1 pack PUR, min./
Dried to handle25 h 21 h 13 h 30 m 10 h 5 h 2 h Cure for service 25 h 21 h 13 h 30 m 10 h 5 h 2 h Note:
- There is no maximum overcoating interval.
- Rayston Activator may shorter drying time of the coating.
- Dryingand curing time determined at controlled temperatureand relative humidity (RH) 60 - 80%.
- As the relative humidity of the air decreases, the curing time of the coating increases.
- Application Data
Stirring: It is a single pack ready to use material. Prior to use, it must be thoroughly stirred with a low speed mixer, avoiding air entrapment. Constant stirring is not required. Before opening and stirring the temperature of material must be at least 3ºC above dew point.
Thinning: The addition of thinner is usually not necessary. If necessary Raystonthinner or Raystonthinner CC can be added up to 10 % to the volume.
Note: If other than recommended thinners are used the manufacturer is not responsible for deterioration of coating quality.
Cleaning: After work all equipment shall be cleaned with the thinner Raytonthinner or Raystonthinner CC.
- Application Method
Spray Application: Airless spray is the main method of application. For other spraying methods, viscosity correction may be required.
Brush: Application by brush. Recommended for stripe coat application or minor repair touch-up.
Roller: Application by roller. Not recommended to use roller for application of priming.
Properties
- Color
- Appearance
- Semi-gloss Coating
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Solids (By Volume) | 78 - 62 | % | - |
| Density (20°C) | 1.06 - 1.16 | g/cm³ | - |
| Volatile Organic Content | max. 265 | g/l | - |
| Dry Heat Resistance (Prolonged Exposure) | 145.0 | °C | ASTM D2485 |
| Dry Heat Resistance (Short Term Exposure) | 175.0 | °C | ASTM D2485 |
| Impact Resistance | min. 5 | J | ASTM 2794 |
| 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) 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 Component A 2 years Component B 3 years Note: After lasting storage primer shall be stirred thoroughly until its precipitation is spread over the suspension homogeneously. Precipitation in primer does not change its properties or worsen its quality. After the expiration date has passed, it is necessary to check the quality of the paint material.