Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Feature
- CORONATE HXR is hardeners for non-yellowing type of PU paints, with superior performance to biuret or adducts types of hardeners.
- CORONATE HXR is widely accepted in the paint industry for various applications, such as motorbike parts, automotive refinishing, wood finishes, etc. This is because of its resistance to high heat, high solubility in solvents and good compatibility with polyols.
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Application
- The combination of CORONATE HXR with acrylic polyols produces non-yellowing type of paint with excellent weathering ability and resistance against ultra-violet rays, by which its original color could be long sustained. This two-component type of paint is applied for automotive refinishes, industrial purposes, etc.
- The combination of CORONATE HXR with alkyd polyols results in two-component type of paint, which is applied for industrial purpose, wood finishes, etc.
- The addition of CORONATE HXR to some nitro-cellulose based or polyurethane-based paints distinctively improve their physical properties, such as chemical resistance to solvents. However, it is necessary to test the compatibility for each combination, and great care should be taken during testing.
Properties
- Appearance
- Pale yellow liquid
- Typical Properties
| Value | Units | Test Method / Conditions | |
| NCO Content | 21.6 - 22.1 | % | — |
| Solid Content | 100 | % | — |
| Viscosity at 25°C | 1,700 - 3,300 | mm2/s | — |
| Color (APHA No.) | 40 | — | — |
| Monomer HDI | 0.2 | % | — |
| Dry Ability | 45 | — | — |
| tack free time (min) dry through time (hr) | 20 | — | — |
| Pencil hardeness | H | — | — |
| Erichsen Value (mm) | 9 | — | — |
| Impact Resistance (g x cm) | 1000 x 30 | — | — |
| Flexibility (2mmcp) | Pass | — | — |
| Adhesion (cross cut) | 100 / 100 | — | — |
Technical Details & Test Data
- Dilutions with Solvent
- When this product has to be diluted with solvents, the water content of the solvent should be as low as possible and great care should be taken during dilution in order to prevent contamination with water. In addition, this operation should be carried out under a dry atmosphere.
- In case of this product needs to be diluted with the desired solvent, the Dilution Stability Test of the final formulation under the application conditions is strongly recommended.
- There is a possibility of precipitation, generation of gel-type substance or haze, if the dilution formulation was inappropriate.
- Please note that all the dilution work is under customer’s responsibility
Safety & Health
- Safety Precautions
- Care must be taken when handling CORONATE HXR as it contains active isocyanate and solvent.
- This product is flammable. Therefore, the use of fire is prohibited in the work area.
- Appropriate safety measures and protective equipment such as goggles and gloves, should be used when working with this product in order to prevent contact with skin.
- CORONATE HXR is mainly applied for spray coatings.
- A protective mask should be worn in order to prevent inhalation of spraying mist.
Packaging & Availability
- At the time of Use and Re-Packaging
- The reaction of water with the NCO groups in this product causes not only the formation of insoluble products such as urea groups, but also CO2 gas, which increases the pressure in a closed container, thus resulting in an expansion of the container.
- The operation for partial use of this product or emptying of a drum should be carried out with great care in order to prevent any contamination with moisture. The operation to transfer this product into another container should be done under a dry atmosphere, then sealed with dry nitrogen before sealing.
Storage & Handling
- Storage Conditions
CORONATE HXR should always be kept in a closed container at room temperature for long period of storage. This is to prevent any contact with moisture in the air, since this product is a chemical compound and is highly active with hydroxyl groups. This product should be stored indoors at room temperature (15 – 25 °C ).