Technical Data Sheet


HAA crosslinker for exterior durable powder coatings



M42 is a tetra-functional group containing β-hydroxyalkylamide crosslinker. It is suitable for curing with carboxyl-terminated polyester or acrylic resin to provide TGIC-free based exterior durable powder coatings.  


Typical Properties

Appearance           [visual]        white granule or powder

Melting point ()                     122-128

Hydroxyl equivalent weight (g/eq.)       80-84

Volatiles (%)                          0.5

Herein described to be typical properties and do not constitute specification limits.



Application in TGIC-free based exterior durable powder coatings.


Process & Use levels

M42 is added to the binder/pigment blend before extrusion.

Recommended to design formulation by weight parts of 95/5 (resin to M42) for pure polyester resin with AV ca 34mgKOH/g; 96.5/3.5 by weight for polyester resin with AV ca. 22 mgKOH/g.


Shelf Life

One year from the date of production. It is recommended to check the acid value after one year before using.


Storage & Notice

Store in temperature between 2 and 35 or cool dry place to avoid wetting-absorption.


Handling & Precaution

Avoid contact with eyes and skin. Avoid breathing dust. Wash after handling.

For further information, please refer to the MSDS.


Regulatory Status

M42 complies with TSCA (USA), DSL/NDSL (Canada) and IECSC (China).



Packaged in paper-plate box with polyethylene liner. Net weight 25 Kg per box.