Knowde Enhanced TDS
Identification & Functionality
- CASE Ingredients Functions
- Technologies
Features & Benefits
- Product Highlights
BENEFITS
- Fast cure response
- High solids
- Partially water soluble
- Good compatibility water soluble anionic polymers, dispersions and emulsions
APPLICATION AREAS
- WB general industrial coatings for faster cure
- Automotive coatings
- Coil and container coatings
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Coating Type
Properties
- Physical Form
- Appearance
- Clear Liquid
- Insoluble in
- Aliphatic Hydrocarbons
- Typical Properties
- Solubility & Compatibility
SOLUBILITY
Alcohol Complete Esters Complete Ketones Complete Aromatic hydrocarbons Partial Aliphatic hydrocarbons Insoluble Water Partial COMPATIBILITY
Acrylic resins Very good Alkyd resins Very good Polyester resins Very good Epoxy resins Very good
| Value | Units | Test Method / Conditions | |
| Solvent | I-butanol/I-propanol=1/2 | — | — |
| Color | max. 1 | Gardner | — |
| Non-Volatile Content | 88 ± 2 | %wt | — |
| Free Formaldehyde Content | max. 2.5 | % | — |
| Viscosity (25°C) | Z2-Z4 | — | — |
Technical Details & Test Data
- Backbone Polymer Selection
CYMEL 370N resin is a very effective crosslinking agent for backbone polymers containing hydroxyl, amide and, to some extent, carboxyl functionality, such as epoxy, alkyd/polyester or acrylic resins. The self-condensation reaction takes preference over the crosslinking reaction. Higher film hardness can easily be obtained by raising the concentration of amino crosslinker.
- Catalysis
CYMEL 370N resin may not require the addition of an acid catalyst to the formulation to obtain effective cure. In many instances, the acidity of the backbone polymer in the formulation is sufficient to catalyze the reaction under normal baking conditions (15-20 minutes at 120-150°C). The cure can be additionally catalyzed with weak organic or inorganic acids such as CYCAT®296-9 catalyst, which has proved to be a very effective catalyst for these systems.
- Stability
FORMULATION STABILITY
Formulated systems containing CYMEL 370N resin have to be stabilized with primary alcohols, amines or with a combination of these. For water borne systems a pH between 7.0-8.5 should be maintained to achieve stability.
STORAGE STABILITY
CYMEL 370N resin has a shelf life of 540 days from the date of manufacture when stored at temperatures between 5°C and 25°C. Although lower temperatures are not detrimental to stability, its viscosity will increase, possibly making the resin difficult to pump or pour. The viscosity will reduce again on warming, but care should be taken to avoid excessive local heat as this can cause an irreversible increase in viscosity.
Storage & Handling
- Shelf Life
- 540 Days