Enhanced TDS
Identification & Functionality
- Blend
- No
- CASE Ingredients Functions
- Carrier
- Chemical Family
- Country of Origin
- Function
- Crosslinking Agent
- Product Code
- MITM00268
- Single Ingredient
- Yes
- Technologies
- Product Families
Applications & Uses
- Coating End Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Markets
- Applications
- Formulation Stability
- The stability of baking enamels containing CYMEL® U-21-511 Resin can be enhanced by the addition of alcohols, amines or combination of these.
- Low molecular weight primary alcohols, such as n-butanol, are most effective.
- Recommended amines are TEA, DMEA or 2-AMP at a concentration of 0.5-1.0% on total binder solids.
- Product Applications
- Metal Deco Coatings
- Can Coatings
- Coil Coating Primers
Properties
- Physical Form
- Soluble In
- Backbone Polymer Selection
- CYMEL® U-21-511 Resin not only reacts with the hydroxyl and carboxyl functionalities of the other binders in the formulation, but it also has a tendency for self-condensation.
- Therefore, its practical equivalent weight, on a solids basis, is typically 200-280.
- The resulting films are harder and more resistant to chemical attack with increasing levels of CYMEL® U-21-511 Resin, but they may also be more brittle.
- The optimum level of the resin in a given formulation should be determined experimentally.
- Catalysis Information
- CYMEL® U-21-511 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.
Packaging & Availability
Principal Information
- Group Principal Number
- S000001
- Principal
Storage & Handling
- Storage Conditions
- CYMEL® U-21-511 Resin has a shelf life of 6 months from date of manufacture when stored at temperatures between 5°C and 30°C.
- Although low temperatures are not detrimental to stability, the viscosity of the product will increase making the resin more difficult to pump or pour.
- Product viscosity can be returned to normal by gentle re-warming, however, care should be taken to avoid excessive localized heating as this can cause an irreversible increase in viscosity.
Other
- Appearance
- Clear liquid
- Appearance (SDS)
- Liquid
- Color (SDS)
- Colorless
- IATA/ICAO Proper Shipping Name
- Resin solution
- IATA/ICAO UN Number
- UN1866
- IMO/IMDG Proper Shipping Name
- Resin solution
- IMO/IMDG UN Number
- UN1866
- Item Number
- Odor (SDS)
- Butanol
- Other Hazards
- Not applicable
- Protect from Freezing
- Yes
- TDG Canada Proper Shipping Name
- Resin solution
- TDG Canada UN Number
- UN1866
- Temperature Control
- Yes
- USA/DOT Proper Shipping Name
- Resin solution
- USA/DOT UN Number
- UN1866
- Chemical Properties
Value Units Test Method / Conditions Free Formaldehyde Content max. 1.7 % % Sulfite Method - Optical Properties
Value Units Test Method / Conditions Color Scale max. 70.0 APHA APHA Color Scale max. 70.0 Gardner Gardner ISO 6271 - Physical Properties
Value Units Test Method / Conditions Moisture Content 58.0-62.0 %(W/W) %(W/W) at 105°C, 90 min, Pan Storage Temperature 64.0-84.0 °F °F - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Boiling Point (SDS) approx. 118.0 °C °C Density (SDS) 1.01-1.04 g/cm³ g/cm³ Flash Point (SDS) 27.0 °C °C n-butanol solvent Flash Point (SDS) 27.0 °C °C value for n-butyl alcohol Lower Flammable Limit (SDS) 1.0 %(V/V) %(V/V) Volatile Content (SDS) 40.0 % % - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 6.0 mo mo