CYMEL® 328 Resin
- CASE Ingredients Functions
- Crosslinking Agent
CYMEL® 328 Resin functions as a crosslinking agent within the CASE Ingredients' monomers and intermediates and chain extenders and crosslinkers categories. Tailored for the automotive and transportation and paints and coatings sectors, this clear liquid is ideal for automotive OEM coatings, coatings, and finishes, especially waterborne coatings 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
- End Uses
- Waterborne Coating
- Functions
- Crosslinking Agent
- Markets
- Automotive & Transportation
- Paints & Coatings
- Catalysis
CYMEL 328 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 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; It is essential that a tertiary amine, such as dimethylethanolamine or triethylamine, be used for neutralization and pH adjustment. For optimum stability, a pH of 7.5-8.5 should be maintained.; STORAGE STABILITY; CYMEL 328 resin has a shelf life of 180 days from the date of manufacture when stored at temperatures between 5°C and 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 avoid excessive local he
- Appearance
- Clear Liquid
- Shelf LIfe
- 180 Days
- Soluble In
- Water
- Coating Type
- Waterborne Coating
- Technology
- CASE Ingredients
- HIGHLIGHTS
- BENEFITS
- Fast cure response
- Low formaldehyde release
- APPLICATION AREAS
- Can and container coatings
- Waterborne coatings
- Automotive coatings
- Backbone Polymer Selection
CYMEL 328 resin contains a combination of methoxymethyl, methylol and imino functionalities making it a very effective crosslinker for backbone polymer resins containing hydroxyl, amide and carboxyl functional groups, such as alkyd, polyester or acrylic resins. CYMEL 328 resin is very reactive and has a tendency to self-condense at normal baking temperatures, providing films with very good hardness, flexibility, gloss, chemical resistance and outdoor durability. CYMEL 328 resin is very good compatible and stable with a wide range of waterborne polymer systems. Although the optimum level of CYMEL 328 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. 70 | APHA |
| Non-Volatile Content | 83-87 | %wt |
| Free Formaldehyde Content | max. 0.5 | % |
| Viscosity (23°C) | 1000-3000 | mPa.s |
