Name: Waterborne Ink Defoamer WID-22
Brand: Coatingsink
SKU: waterborne-ink-defoamer-wid
Availability: InStock

Question 1

Why is WID-22 preferred over silicone defoamers in flexographic inks?

Accepted Answer

Silicone-based defoamers can cause fish-eye defects and adhesion failures in waterborne ink films, particularly on non-porous substrates. WID-22 uses EO/PO block copolymer chemistry that eliminates silicone contamination risk, making it suitable for food-contact packaging inks where silicone migration must be avoided.

Question 2

At what stage should WID-22 be added during ink manufacture?

Accepted Answer

Add WID-22 during the let-down or dispersion phase at 0.05–0.2% on total formulation weight. Pre-dilute with a small portion of the ink vehicle before addition to ensure homogeneous distribution and optimal defoaming efficiency throughout the batch.

Question 3

Is WID-22 compatible with anionic and nonionic surfactant systems?

Accepted Answer

WID-22 is compatible with anionic and nonionic surfactant-stabilized waterborne ink systems. Avoid direct mixing with cationic surfactants, as ionic incompatibility can cause precipitation. Always conduct a bench-scale compatibility trial before scaling to full production.

Active Content	100%
Density (25°C)	1.02 g/ml
Viscosity (25°C)	800–1200 mPa·s
Recommended Dosage	0.05–0.2%
Cloud Point (1% aq.)	25–35°C

Waterborne Ink Defoamer WID-22

Specifications

FAQ

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