CYMEL® 3020

CYMEL® 3020 resin is a highly alkylated, mixed ether (methyl/n-butyl) melamine crosslinker. Its hydrophobic nature combined with very good film appearance properties makes CYMEL® 3020 resin suitable for automotive topcoat applications. CYMEL® 3020 is insoluble in water but has excellent compatibility with water soluble backbone polymers and provides very good stability in pHbuffered alkaline waterborne formulations.

Principal: allnex Crosslinkers

Functions: Crosslinking Agent

Chemical Family: Melamine Formaldehydes (MF)

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

End Uses: Solventless & High Solids Coating, Surface Coating, Top Coat

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Function
Crosslinking Agent
Product Code
MITM00237
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Formulation Information

The stability of formulated systems containing CYMEL® 3020 resin can be enhanced by the addition of alcohols, amines or a combination of these. Low molecular weight primary alcohols such as methanol and n-butanol are most effective. Recommended amines are TEA, DMEA or 2-AMP at a concentration of 0.5-1.0% on total binder solids. Package stability can also be enhanced by the use of a blocked acid catalyst such as CYCAT® 4045 catalyst. For waterborne systems, a pH of 7.5-8.5 should be maintained to achieve stability.

Properties

Physical Form
Soluble In
Catalysis Information

CYMEL® 3020 resin will respond best to sulfonic acid catalysts, like CYCAT®® 4040 catalyst or the blocked version CYCAT® 4045 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 20 minutes at 120°C to 160°C. For electro deposition formulations, a cure schedule of 20 minutes at 150°C and higher is advised. Higher concentrations of catalyst might be necessary if there are basic pigments or additives present in the formulation.

Backbone Polymer Selection

CYMEL® 3020 resin contains mainly methoxymethyl and butoxymethyl functionalities making it a very effective crosslinker for backbone polymer resins containing hydroxyl, amide or carboxyl functional groups, such as found on alkyd, polyester or acrylic resins. CYMEL® 3020 resin is hydrophobic in nature and compatible with a wide range of backbone polymers providing films with very good appearance, adhesion and resistance properties. Although the optimum level of CYMEL® 3020 resin in a given formulation should be determined experimentally, its effective equivalent weight is in the range of 160-220.

Regulatory & Compliance

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

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions

CYMEL® 3020 resin has a shelf life of 4 years 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)
Liquid
Color (SDS)
Colorless
Item Number
Odor (SDS)
Formaldehyde
Other Hazards
Non Hazardous
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 30.0APHA
Color Scalemax. 30.0GardnerISO 6271
Chemical Properties
ValueUnitsTest Method / Conditions
Free Formaldehyde Content0.1%Sulfite Method
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life4.0yr
Physical Properties
ValueUnitsTest Method / Conditions
Density1.04g/cm³at 23°C
Viscosity900.0-1800.0mPa.sat 23°C
Material Composition
ValueUnitsTest Method / Conditions
Non-Volatile Contentmin. 97.0%at 45°C, foil, 45 min
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)0.5-1.0%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Density (SDS)1.12g/cm³at 25°C
Evaporation Rate (SDS)max. 1.0%
Flash Point (SDS)min. 100.0°C
Volatile Content (SDS)1.0%(W/W)