CYMEL® 1123 Resin

1 of 102 products in this brand
CYMEL® 1123 Resin serves as a crosslinking agent within the CASE Ingredients domain. It's specifically designed for paints and coatings, particularly in the realm of industrial coatings. This clear liquid, insoluble in water, is compatible with various polymers and resins like acrylics, alkyds, epoxies (EP), and polyesters, making it versatile for primer applications.

Functions: Crosslinking Agent

Chemical Family: Polyesters

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

End Uses: Primer

Technical Data Sheet

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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights

BENEFITS

  • Chemical resistance
  • Detergent resistance
  • Film flexibility

APPLICATION AREAS

  • Anodic electrodeposition
  • Can and container coatings
  • Coil coating finishes
  • High solids primer formulations

Applications & Uses

Compatible Polymers & Resins
Coating Type

Properties

Physical Form
Appearance
Clear Liquid
Insoluble in
Water
Typical Properties
ValueUnitsTest Method / Conditions
Colormax. 100APHA
Non-Volatile Contentmin. 98%wt
Free Formaldehyde Contentmax. 0.2%
Viscosity (23°C)3800-10200mPa.s
Solubility & Compatibility

SOLUBILITY

Alcohol Complete
Esters Complete
Ketones Complete
Aromatic hydrocarbons Complete
Aliphatic hydrocarbons Complete
Water Insoluble

 

COMPATIBILITY

Acrylic resins Very good
Alkyd resins Very good
Polyester resins Very good
Epoxy resins Very good

 

Technical Details & Test Data

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.

Catalysis

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.

Stability

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 CYCAT 4045 catalyst. For waterborne systems, pH should be adjusted to 7.5-8.5 to achieve optimum stability.

STORAGE STABILITY

CYMEL 1123 resin has a shelf life of 1440 days from the date of manufacture when stored at temperatures below 32°C. Although low 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
1440 Days