CYMEL® MB-98

CYMEL® MB-98 resin is a butylated melamine crosslinker with high degree of alkylation and very low free formaldehyde. It has been specially designed to improve the resistance properties of urea-based acid curing wood coating formulations.

Principal: allnex Crosslinkers

Functions: Crosslinking Agent

Chemical Family: Melamine Formaldehydes (MF)

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

End Uses: Wood Coating

Labeling Claims: Formaldehyde-free, Low Formaldehyde, Per & Polyfluoroalkyl Substances (PFAS)-free

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Crosslinking Agent
Product Code
MITM00257
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Labeling Claims
Product Benefits
  • Very high solids content 
  • Good chemical resistance 
  • High film build 
  • Very low free formaldehyde

Applications & Uses

Properties

Physical Form
Soluble In
Catalysis Information
  • CYMEL MB-98 resin responds best to sulfonic acid catalysts, like CYCAT® 4040 catalyst.
  • Generally, 6-10% CYCAT 4040 catalyst on total resin solids of the formulation is sufficient to obtain fast drying behavior at room temperature.

Technical Details & Test Data

Technical Data
  • CYMEL MB-98 resin is a very effective crosslinking agent for backbone polymer resins containing hydroxyl functional groups, such as alkyd, polyester or acrylic resins.
  • The optimum level of CYMEL MB-98 resin in an acid curing wood coating formulation should be in the range of 25-35% on total resin solids if used as the sole crosslinker.
  • Loadings of 5-10% on total resin solids is recommended when used in combination with a urea resin.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions
  • CYMEL MB-98 resin has a shelf life of 4 years from date of manufacture when stored at temperatures between 5°C and 32°C.
  • Although lower temperatures are not detrimental to stability, the viscosity of the product will increase making the resin more difficult to pump or pour
  •  Product viscosity can be returned to normal by gentle re-warming, however, care should be taken to avoid excessive localized heating 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)
Slight formaldehyde
Other Hazards
Not applicable
USA/DOT Proper Shipping Name
Other regulated substance, liquid, N.O.S.
USA/DOT Technical name (N.O.S.)
Xylene
USA/DOT UN Number
NA3082
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 100.0 APHAAPHA
Color Scalemax. 100.0 GardnerGardnerISO 6271
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life4.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Viscosity1700.0-4500.0 mPa.smPa.sat 23°C
Material Composition
ValueUnitsTest Method / Conditions
Non-Volatile Content95.0-99.0 %(W/W)%(W/W)at 100°C, pan, 1 hr
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Density (SDS)1.02 g/cm³g/cm³
Evaporation Rate (SDS)max. 1.0 %%
Flash Point (SDS)min. 100.0 °C°C
Relative Vapor Density (SDS)min. 1.0-
Volatile Content (SDS)3.0 %(W/W)%(W/W)