Name: Low-Foam Nonionic Wetting Agent LFW-2
Brand: Coatingsink
SKU: low-foam-nonionic-wetting-lfw
Availability: InStock

Question 1

Why choose a silicone-free wetting agent like LFW-2 over a silicone-based surfactant?

Accepted Answer

Silicone-based wetting agents can cause intercoat adhesion failures and cratering when overcoated. LFW-2's EO/PO block copolymer structure delivers comparable dynamic surface tension reduction without the silicone migration risk, making it suitable for multi-layer systems, refinish coatings, and substrates where subsequent printing or bonding is required.

Question 2

At what dosage does LFW-2 effectively wet difficult low-energy substrates?

Accepted Answer

For standard mineral and fiber-cement substrates, 0.05–0.15% on total formulation weight is sufficient. For challenging low-energy plastics (PE, PP) or heavily contaminated surfaces, dosage can be increased to 0.2–0.3%. Exceeding 0.3% typically yields diminishing returns and may cause foam stability in the paint film.

Question 3

Does LFW-2 affect scrub resistance or water resistance in architectural coatings?

Accepted Answer

At recommended dosages (≤0.3%), LFW-2 does not measurably reduce scrub resistance or wet adhesion. Because it is nonionic, it is less prone to electrolyte-induced desorption than anionic surfactants, contributing to better water-resistance retention after film formation.

HLB Value	12–14
Appearance	Clear to hazy colorless liquid
pH (10% aq.)	6.0–8.0
Active Content	100%
Surface Tension (0.1% aq.)	27–31 mN/m

Low-Foam Nonionic Wetting Agent LFW-2

Specifications

FAQ

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