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CYMEL® 304 Resin

CASE Ingredients Functions
Crosslinking Agent

CYMEL® 304 Resin serves as a crosslinking agent categorized under CASE Ingredients' monomers and intermediates and chain extenders and crosslinkers. Primarily aimed at the paints and coatings sector, it finds application in industrial coatings and furniture coatings. This liquid product is compatible with acrylics, alkyds, and polyesters and is specifically designed for use on wood substrates.

Properties

Physical Form
Liquid

Product families

Applications

Paints & Coatings — Industrial Coatings
  • Furniture Coatings

Product Families

CASE Ingredients — Monomers & Intermediates
  • Chain Extenders & Crosslinkers

Other characteristics

Brand
CYMEL
Functions
Crosslinking Agent
Compatible Polymers & Resins
Acrylics, Alkyds, Polyesters
Markets
Paints & Coatings
Catalysis

CYMEL 304 resin requires the addition of a sulfonic acid catalyst, such as CYCAT® 4040 catalyst, at levels of 6-10% on total resin solids in order to obtain effective cure for both ambient and heat cured applications. For pre-catalyzed urea-rich systems, 2.0% PAP based on weight of total binder solids is recommended.

Stability

FORMULATION STABILITY; The stability of formulated systems containing CYMEL 304 resin can be enhanced by the addition of primary alcohols, such as methanol, ethanol, and butanol. Higher concentrations will improve catalyzed pot life. Faster evaporating alcohols will improve speed of dry.; STORAGE STABILITY; CYMEL 304 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.

Appearance
Clear Liquid
Shelf LIfe
1440 Days
Insoluble In
Water
Technology
CASE Ingredients
HIGHLIGHTS

BENEFITS; Fast cure response in both ambient and forced cure applications; Extended catalyzed coating stability; Very low free formaldehyde; APPLICATION AREAS; Industrial wood coatings

Backbone Polymer Selection

CYMEL 304 has excellent compatibility with a wide variety of polyols, such as alkyd, acrylic, and polyester resins. Polyols with primary hydroxyl functionality are preferred for fast cure at ambient conditions. The effective equivalent weight of CYMEL 304 resin is approximately 150, however, its optimum loading should be determined experimentally for each formulation with consideration of the performance properties to be optimized.

Compatibility and Solubility
  • SOLUBILITY
  • COMPATIBILITY
Compatible Polymers and Resins
  • Acrylics
  • Alkyds
  • Polyesters
Compatible Substrates and Surfaces
Wood

Technical data

Table 1 of 1

4 rows
CharacteristicValueUnit
Colormax. 70APHA
Non-Volatile Contentmin. 98%wt
Free Formaldehyde Contentmax. 0.1%
Viscosity (23°C)6000-12000mPa.s

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