Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
Features & Benefits
- Product Highlights
BENEFITS
- Chemical resistance
- Detergent resistance
- Film flexibility
APPLICATION AREAS
- Anodic electrodeposition
- Can and container coatings
- Coil coating finishes
- High solids primer formulations
Applications & Uses
- Markets
- Compatible Polymers & Resins
- Coating Type
Properties
- Physical Form
- Appearance
- Clear Liquid
- Insoluble in
- Water
- Typical Properties
- Solubility & Compatibility
SOLUBILITY
Alcohol Complete Esters Complete Ketones Complete Aromatic hydrocarbons Complete Aliphatic hydrocarbons Complete Water Insoluble COMPATIBILITY
Acrylic resins Very good Alkyd resins Very good Polyester resins Very good Epoxy resins Very good
Value | Units | Test Method / Conditions | |
Color | max. 100 | APHA | — |
Non-Volatile Content | min. 98 | %wt | — |
Free Formaldehyde Content | max. 0.2 | % | — |
Viscosity (23°C) | 3800-10200 | mPa.s | — |
Technical Details & Test Data
- Backbone Polymer Selection
CYMEL 1123 resin contains mainly methoxymethyl and ethoxymethyl functional sites making it a very effective crosslinker for backbone polymer resins containing hydroxyl, amide or carboxyl functional groups, such as those found on alkyd, polyester or acrylic resins. The effective equivalent weight of CYMEL 1123 resin typically ranges from 120-180, however, its optimum loading should be determined experimentally for each formulation with consideration of the performance properties to be optimized.
- Catalysis
CYMEL 1123 resin responds best to sulfonic acid catalysts, like CYCAT® 4040 catalyst, CYCAT 600 catalyst, or CYCAT 500 catalyst. Generally 0.5 to 1.0% catalyst solution on total binder solids of the formulation is sufficient to provide good cure at baking schedules of 20 minutes at 120°C to 160°C. Higher concentrations might be necessary if there are basic pigments or additives present in the formulation.
- Stability
FORMULATION STABILITY
The stability of formulated systems containing CYMEL 1123 resin can be enhanced by the addition of primary alcohols, amines or a combination of these. Low molecular weight primary alcohols, such as ethanol and n-butanol, are most effective. Recommended amines are DMEA or 2-AMP at a concentration of 0.5- 1.0% on total resin solids. Package stability can also be enhanced by the use of a blocked acid catalyst such as CYCAT 4045 catalyst. For waterborne systems, pH should be adjusted to 7.5-8.5 to achieve optimum stability.
STORAGE STABILITY
CYMEL 1123 resin has a shelf life of 1440 days from the date of manufacture when stored at temperatures below 32°C. Although low 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
- 1440 Days