CYMEL® 1123

CYMEL® 1123 Resin is a highly methylated/ethylated benzoguanamine resin developed primarily for use as a crosslinking agent in electrocoating and conventional coatings requiring high detergent and chemical resistance. Its excellent balance between adhesion and film flexibility, especially after several cure cycles, makes CYMEL® 1123 Resin particularly well suited for can coating applications. While CYMEL® 1123 Resin is insoluble in water, it shows excellent compatibility with water soluble backbone polymers and provides very good stability in pH-buffered alkaline waterborne formulations. The poor light resistance properties of benzoguanamine makes CYMEL® 1123 Resin unsuitable for exterior applications.

Principal: allnex Crosslinkers

Functions: Crosslinking Agent

Chemical Family: Benzoguanamines

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

End Uses: Can Coating, Container Coatings, E-Coat & Electrodeposition, Primer

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Crosslinking Agent
Product Code
MITM00217
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Product Benefits
  • Chemical resistance 
  • Detergent resistance 
  • Film flexibility

Applications & Uses

Application Method
Coating End Applications
Compatible Polymers & Resins
Markets
Applications
Product Applications
  • Anodic electrodeposition 
  • Can and container coatings 
  • Coil coating finishes 
  • High solids primer formulations
Formulation Stability
  • The stability of formulated systems containing CYMEL® 1123 Resin can be enhanced by the addition of primary alcohols, amines or a combination of these.
  • Low molecular weight primary alcohols, such as ethanol and n-butanol, are most effective.
  • Recommended amines are DMEA or 2-AMP at a concentration of 0.5 1.0% on total resin solids.
  • Package stability can also be enhanced by the use of a blocked acid catalyst such as CYMEL® 1123 Resin.
  • For waterborne systems, pH should be adjusted between 7.5-8.5 to acheive optimum stability.

Properties

Regulatory & Compliance

Certifications & Compliance
Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?

Technical Details & Test Data

Catalysis Information
  • CYMEL® 1123 Resin responds best to sulfonic acid catalysts, like CYCAT® 4040 catalyst, CYCAT 600 catalyst, or CYCAT 500 catalyst.
  • Generally 0.5 to 1.0% catalyst solution on total binder solids of the formulation is sufficient to provide good cure at baking schedules of 20 minutes at 120°C to 160°C.
  • Higher concentrations might be necessary if there are basic pigments or additives present in the formulation.
Backbone Polymer Selection
  • CYMEL 1123 resin contains mainly methoxymethyl  and ethoxymethyl functional sites making it a very effective crosslinker for backbone polymer resins containing hydroxyl, amide or carboxyl functional groups, such as those found on alkyd, polyester or acrylic resins.
  • The effective equivalent weight of CYMEL 1123 resin typically ranges from 120-180, however, its optimum loading should be determined experimentally for each formulation with consideration of the performance properties to be optimized.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions
  • CYMEL® 1123 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)
Colorless
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Amine
Other Hazards
Not applicable
USA/DOT UN Number
UN3082
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 70.0 APHAAPHA
Color Scalemax. 70.0 GardnerGardnerISO 6271
Chemical Properties
ValueUnitsTest Method / Conditions
Free Formaldehyde Contentmax. 0.3 %%Sulfite Method
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life4.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Viscosity3800.0-10200.0 mPa.smPa.sat 23°C
Material Composition
ValueUnitsTest Method / Conditions
Non-Volatile Contentmin. 98.0 %(W/W)%(W/W)at 45°C, foil, 45 min
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Density (SDS)1.17 g/cm³g/cm³
Flash Point (SDS)min. 93.0 °C°C
Volatile Content (SDS)max. 5.0 %(W/W)%(W/W)