CYMEL® 203 Resin
- CASE Ingredients Functions
- Crosslinking Agent
CYMEL® 203 Resin functions as a crosslinking agent under the CASE Ingredients umbrella. Specifically designed for the automotive and transportation and paints and coatings sectors, this clear liquid is essential for automotive OEM coatings and coatings and finishes applications on metal surfaces.
Properties
- Physical Form
- Liquid
Product families
Applications
- Automotive OEM Coatings
- Automotive OEM Coatings
Product Families
- Chain Extenders & Crosslinkers
Other characteristics
- Brand
- CYMEL
- Functions
- Crosslinking Agent
- Markets
- Automotive & Transportation
- Paints & Coatings
- Catalysis
CYMEL 203 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). If catalyst addition is required, then 0.5-1.0% of CYCAT® 296-9 catalyst based on total resin solids is recommended.
- Stability
FORMULATION STABILITY; The stability of solvent-borne systems containing CYMEL 203 resin can be enhanced by the addition of primary alcohols, amines, or a combination of these. Low molecular weight primary alcohols such as ethanol or n-butanol are most effective. Recommended amines are TEA or DMEA at a concentration of 0.5-1.0% on total binder solids. For best stability in waterborne systems, a pH of 7.5-8.5 should be maintained using tertiary amines only.; STORAGE STABILITY; CYMEL 203 resin has a shelf life of 720 days from the date of manufacture when stored at temperatures below 32°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 av
- Appearance
- Clear Liquid
- Shelf LIfe
- 720 Days
- Insoluble In
- Water
- Technology
- CASE Ingredients
- HIGHLIGHTS
- BENEFITS
- Excellent flow and leveling
- Fast cure speed
- Low formaldehyde release
- APPLICATION AREAS
- Can and container coatings
- General industrial coatings
- Automotive coatings
- Partially Soluble in
- Aliphatic Hydrocarbons
- Backbone Polymer Selection
CYMEL 203 resin is an effective crosslinker for backbone polymer resins containing hydroxyl, carboxyl, and amide functional groups, such as those found on alkyd, polyester or acrylic resins. Although the optimum level of CYMEL 203 resin should be determined experimentally, ratios of 25 to 35% based on resin solids are typically most effective.
- Compatibility and Solubility
- SOLUBILITY
- COMPATIBILITY
- Compatible Substrates and Surfaces
- Metal
Technical data
Table 1 of 1
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Color | max. 50 | APHA |
| Non-Volatile Content | 70-74 | %wt |
| Free Formaldehyde Content | max. 0.5 | % |
| Viscosity (23°C) | 400-800 | mPa.s |
