Knowde Enhanced TDS
Identification & Functionality
- CASE Ingredients Functions
- Technologies
Features & Benefits
- Product Highlights
BENEFITS
- Fast cure response
- Very high gloss
- Good stability
- Chemical resistance
APPLICATION AREAS
- General industrial coatings
- Primer formulations
- Water-based coatings
Applications & Uses
- Markets
- 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 | |
Color | max. 70 | APHA | — |
Non-Volatile Content | 86-90 | %wt | — |
Free Formaldehyde Content | max. 2.5 | % | — |
Viscosity (23°C) | 6000-10500 | mPa.s | — |
Technical Details & Test Data
- Backbone Polymer Selection
CYMEL 370 resin contains a combination of methoxymethyl and methylol functionalities, making it a very 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 370 resin should be determined experimentally, ratios of 25 to 35% based on resin solids are typically most effective.
- Catalysis
CYMEL 370 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® 4040 catalyst or CYCAT 296-9 catalyst based on total resin solids is recommended.
- Stability
FORMULATION STABILITY
The stability of solvent-borne systems containing CYMEL 370 resin can be enhanced by the addition of primary alcohols, tertiary amines, or a combination of these. Low molecular weight primary alcohols such as ethanol and 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 370 resin has a shelf life of 1080 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 avoid excessive local heat as this can cause an irreversible increase in viscosity
Storage & Handling
- Shelf Life
- 1080 Days