Name: Superspreading Wetting Agent SW-100
Brand: Coatingsink
SKU: superspreading-wetting-agent-sw
Availability: InStock

Question 1

How does SW-100 differ from conventional silicone wetting agents?

Accepted Answer

SW-100 is a trisiloxane-based superspreader that reduces dynamic surface tension to ≤22 mN/m at concentrations as low as 0.05%, well below what conventional polysiloxane or fluorosurfactant wetting agents achieve. This drives rapid, uniform film formation on low-energy substrates including polyethylene, polypropylene, and PET foils where standard wetting agents fail.

Question 2

Is SW-100 suitable for UV-curable coatings as well as waterborne systems?

Accepted Answer

Yes. SW-100 performs in both waterborne and radiation-curable formulations. In UV systems, limit dosage to 0.05–0.1% to avoid surface slip that compromises intercoat adhesion. In waterborne coatings, dosages up to 0.2% are well tolerated without significant foam at typical application speeds.

Question 3

Can SW-100 cause foam under high-shear mixing?

Accepted Answer

Trisiloxane surfactants have lower foam tendency than hydrocarbon wetting agents, but dynamic foam can form under intense shear. If observed, combine SW-100 with a silicone defoamer at 0.05–0.1%; the chemistries are compatible and will not destabilize the coating film. Alternatively, reduce addition temperature or use a slow-speed disperser.

Active Content	100%
Density (25°C)	0.99 g/ml
Viscosity (25°C)	8–15 mPa·s
Recommended Dosage	0.05–0.2%
Surface Tension (0.1% aq.)	≤22 mN/m

Superspreading Wetting Agent SW-100

Specifications

FAQ

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