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On February 1, 2022, Hexion Holdings Corporation announced that it has completed the sale of its Coatings and Composite businesses, which includes the epoxy specialty resins and base epoxy resins and intermediates product lines, to Westlake Chemical Corporation. For epoxy coatings and composite product inquiries, please contact customer service at or

Astro Mel™ 400


Astro Mel 400 is a liquid, partially methylated melamine resin.


Astro Mel 400 is a waterborne resin that can be used to crosslink hydroxy-functional polymers in formulations used for wood and metal coatings, nonwoven binders, and textile finishing. In most cases, Astro Mel 400 provides adequate cure response without the addition of a strong acid catalyst. To promote cure at lower bake temperatures, the use of a blocked acid catalyst is recommended.


Astro Mel 400 can improve the solvent, stain, mar, and block resistance of wood coatings and the hardness, impact and solvent resistance of metal coatings. In nonwovens and textile applications, this resin yields firm, resilient finishes that are highly abrasion and solvent resistant. Additionally, Astro Mel 400 offers good formulated stability and adequate cure response at temperatures below 160 °C.

Typical Properties

Property Standard Value Unit Test Method
Estimated Storage Life @ 21°C 26 weeks ADCH0473-H
Free Formaldehyde 0.9 % ADCH0188
Solids 80 ± 2 % ADCH0407
Solvent Water 0
Specific gravity 1.23 - 1.25 ADCH0362
Viscosity Brookfield 1000 ± 250 cP ADCH0650
Viscosity Gardner-Holdt S – W ADCH0593
Weight ~ 10.3 Pounds per Gallon ADCH0444

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