CYMEL® U-93-210

CYMEL® U-93-210 Resin is an n-butylated urea formaldehyde resin supplied in a mixture of n-butanol and xylene. It has excellent compatibility with epoxy resins and is recommended in primer formulations which are to be topcoated and rebaked.

Principal: allnex Crosslinkers

Functions: Crosslinking Agent

Chemical Family: Urea Formaldehyde (UF)

Compatible Polymers & Resins: Acrylics, Alkyds, Epoxies (EP), Polyesters

End Uses: Can Coating, Coil Coating, Primer, Top Coat

Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Carrier
Chemical Family
Function
Crosslinking Agent
Product Code
MITM00277
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Product Benefits
  • Excellent compatibility with hydrophobic resins 
  • Very good hydrocarbon tolerance 
  • Very good flow properties

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Markets
Applications
Formulation Stability
  • Formulation stability can be enhanced by the addition of primary alcohols and/or amines.
  • Either triethylamine or 2-AMP is recommended at a concentration of 0.5% - 1% on total binder solids.
Product Applications
  • Coil coatings 
  • Can coatings 
  • Epoxy metal deco finishes

Properties

Physical Form
Soluble In
Catalysis Information
  • CYMEL® U-93-210 Resin may not need the addition of an acid catalyst to the formulation to obtain effective cure.
  • In many instances the acidity of other formulation components is sufficient to catalyze the reaction.
  • If catalyst addition is required, then 0.5%-1.0% of either CYCAT® 4040 catalyst or CYCAT 296-9 catalyst, based on total binder solids, is recommended for bake schedules of ~125°C for 15 minutes.
  • Higher concentrations are required for lower temperature cure.
Backbone Polymer Selection
  • CYMEL® U-93-210 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-93-210 Resin, but they may also be more brittle.
  • The optimum level of the resin in a given formulation should be determined experimentally.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions
  • CYMEL® U-93-210 Resin has a shelf life of minimum 180 days from 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 polymerization.

Other

Appearance (SDS)
Viscous 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)
Formaldehyde and solvent
Other Hazards
Polymerization may occur from excessive heat, contamination or exposure to direct sunlight .
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
ValueUnitsTest Method / Conditions
Free Formaldehyde Contentmax. 0.7 %%Titration Method
Material Composition
ValueUnitsTest Method / Conditions
Non-Volatile Content60.0-64.0 %(W/W)%(W/W)DIN EN ISO 3251 at 105°C, 90 min, Pan
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 1.0 GardnerGardnerDIN EN ISO 4630-1
Color Scalemax. 1.0 GardnerGardnerGardner Color Scale
Physical Properties
ValueUnitsTest Method / Conditions
Storage Temperature40.0-86.0 °F°F
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)117.0-142.0 °C°C
Density (SDS)1.04 g/cm³g/cm³
Evaporation Rate (SDS)max. 1.0 %%
Flash Point (SDS)35.0 °C°C
Volatile Content (SDS)38.0 %(W/W)%(W/W)
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life180.0 dd