CYMEL® UM-15

CYMEL® UM-15 resin is a highly methylated urea crosslinker supplied as a liquid at >96% solids. Its high solids combined with very fast cure makes CYMEL® UM-15 resin suitable in high solids, low temperature curing systems, like wood and paper coatings. CYMEL® UM-15 is hydrophilic in nature, completely water soluble, and has very good compatibility with water soluble anionic backbone polymers. This makes CYMEL® UM-15 resin suitable for waterborne applications, like paper and wood coatings, where speed of cure is very important.

Principal: allnex Crosslinkers

Functions: Crosslinking Agent

Chemical Family: Urea Formaldehyde (UF)

Compatible Polymers & Resins: Acrylics, Alkyds, Cellulose Acetate Butyrate (CAB), Nitrocellulose, Polyesters, Polyvinyl Butyral (PVB)

End Uses: Foil Coating, Paper Coating, Textile Coating, Waterborne Coating, Wood Coating

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Crosslinking Agent
Product Code
MITM00284
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Product Benefits
  • High solids 
  • Very fast cure 
  • Water solubility

Applications & Uses

Properties

Technical Details & Test Data

Technical Data
  • CYMEL UM-15 resin contains mainly methoxymethyl functionalities making it a very effective crosslinker for backbone polymer resins containing hydroxyl or amide functional groups, such as found on alkyd, polyester, acrylic and cellulose based resins.
  • The optimum level of CYMEL UM-15 resin in a given formulation should be determined experimentally. Depending on the application, 20 to 40%, based on resin solids can be taken as a starting point
Catalysis Information
  • CYMEL UM-15 resin will respond best to sulfonic acid catalysts, like CYCAT® 4040 catalyst.
  • Generally, 0.5 to 1.0% catalyst solution on total binder solids of the formulation is sufficient to provide good cure for industrial formulations at baking schedules of 15 minutes at 120°C or 5 min at 150°C.
  • For wood, foil and paper coatings higher amounts of catalyst are required and the catalyst added before use as a 2K formulation.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions
  • CYMEL UM-15 resin has a shelf life of 4 years from the date of manufacture when stored at temperatures between 5°C and 30°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.

Other

Appearance
Clear liquid
Appearance (SDS)
Viscous liquid
Color (SDS)
Clear
Item Number
Odor (SDS)
Formaldehyde
Other Hazards
Not applicable
USA/DOT Proper Shipping Name
Combustible liquid, N.O.S.
USA/DOT Technical name (N.O.S.)
Urea-formaldehyde resin
USA/DOT UN Number
NA1993
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 70.0APHA
Color Scalemax. 70.0GardnerISO 6271
Chemical Properties
ValueUnitsTest Method / Conditions
Free Formaldehyde Content0.5%Sulfite Method
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life4.0yr
Physical Properties
ValueUnitsTest Method / Conditions
Viscosity6800.0-17000.0mPa.sat 23°C
Material Composition
ValueUnitsTest Method / Conditions
Non-Volatile Content96.0-100.0%(W/W)at 45°C, foil, 45 min
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Density (SDS)1.1-1.3g/cm³
Flash Point (SDS)76.0°CAbel-Pensky Method
Volatile Content (SDS)2.0-4.0%(W/W)