ASTRA WA®
4 ProductsWetting AdditivesAdhesives

ASTRA WA®

Wetting Agents

Substrate wetting agents. Significantly reduce surface tension, prevent craters, improve flow and leveling. Some grades also have defoaming properties.

Why use substrate wetting agents?

When a coating cannot properly wet the substrate, it forms craters, fisheyes and dewetting defects. Wetting agents dramatically lower surface tension so the coating spreads evenly across difficult substrates like plastics, metals contaminated with oil, and low-energy surfaces.

ASTRA WA®

Key Benefits

  • Significant surface tension reduction
  • Crater and fisheye prevention
  • Better flow and leveling on difficult substrates
  • Some grades also defoam
  • Compatible with solvent, water and UV systems
  • Improves edge coverage on sharp features

Impact on Coating Performance

ASTRA WA agents eliminate the most frustrating defects on contaminated or low-energy substrates. The result: cleaner finishes, lower reject rates and higher production yields.

O – organosoluble, WB – water-based, RC – radiation-curable

Product Catalog

Download TDS
Scroll for more columns
Active %FeatureTDS
ASTRA WA-1503BYK-349Water-based100%Can significantly reduce surface tension, provides substrate washing. Does not stabilize foam.
ASTRA WA-3003Surfynol 104BCWater-based50%
Multifunctional additive, excellently wets the substrate, acts as a defoamer and prevents foam formation, reduces surface tension, can work as a dispersant.
ASTRA WA-3203Surfynol 440Water-based100%
Good solubility in water, ensures substrate wetting, high cloud point, therefore remains transparent in high temperature curing systems.
ASTRA WA-3403Surfynol 465Water-based100%
Good solubility in water, ensures substrate wetting, high cloud point, therefore remains transparent in high temperature curing systems.
Showing 1-4 of 4 Products
Page 1 of 1

Need technical assistance?

Our team can help you select the right additive for your formulation.

Contact Technical Support