Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BYK-349 Wetting Agents

BYK-349 is a polyether-modified polysiloxane Wetting Agents designed for VOC-free aqueous coatings, inks, and adhesives. It dramatically reduces surface tension to enhance substrate wetting and flow without increasing surface slip or foam stabilization. Compatible with acrylic, PU, and styrene-acrylic systems, it maintains stability across pH 4-10 and is ideal for solvent-free formulations

Effect of BYK-349 Wetting Agents

  1. Universal Wetting - Effective on diverse substrates including difficult-to-wet surfaces

  2. Eco-Friendly - PFAS-free, complies with food contact regulations (FDA/EU)

  3. Process Stability - No negative impact on recoatability or layer adhesion

  4. Low Foaming - Minimal foam stabilization during application

  5. Broad Compatibility - Works with acrylic, PU hybrids, and bake systems

Typical Applications of BYK-349 Wetting Agents

  1. Automotive Coatings - Waterborne basecoats requiring uniform wetting

  2. Architectural Paints - Exterior coatings with enhanced flow and leveling

  3. Wood Finishes - Acid-cured furniture coatings for low-gloss surfaces

  4. Printing Inks - Flexographic inks for packaging films

  5. Adhesives - Water-based formulations needing critical substrate wetting

Technical Data of BYK-349 Wetting Agents

Chemical BasePolyether-modified polysiloxane
Active Content100%
pH Stability4-10
Density (20°C)1.04 g/ml
Flash Point>100°C


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