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

BioMax SiFast SF-721 Leveling Agent

BioMax SiFast SF-721 Leveling Agent is a high-performance silicone-based additive from BioMax’s SiFast series, engineered for rapid leveling and defect suppression in waterborne and solventborne coatings. It enhances flow, reduces orange peel and craters, and delivers excellent compatibility without foam or haze—ideal for automotive refinish and industrial finishes.
  • biomax sifast sf 721 leveling agent_0d1c4cb3
  • biomax sifast sf 721 leveling agent_0d1c4cb3

Features Of BioMax SiFast SF-721 Leveling Agent

  1. Ultra-low surface tension for exceptional substrate wetting and flow enhancement.

  2. High compatibility with solvent-based, waterborne, and high-solids coating systems.

  3. Non-silicone, organosilicon-free formulation ensures no silicone-related recoatability issues.

  4. Thermally stable up to 200 °C, supporting baking-cure and industrial thermal processes.

  5. Low VOC content (<5 g/L), compliant with stringent environmental regulations including EU REACH and EPA guidelines.

Typical Applications Of BioMax SiFast SF-721 Leveling Agent

  1. Automotive OEM and refinish clearcoats and basecoats.

  2. Industrial maintenance coatings for metal and plastic substrates.

  3. Wood finishes including UV-curable and waterborne wood stains and topcoats.

  4. Plastic coatings for electronics housings and automotive interior trim.

  5. General-purpose protective coatings for architectural and infrastructure applications.

Specifications Of BioMax SiFast SF-721 Leveling Agent

Chemical TypeModified polyether-modified siloxane (non-silicone alternative)
Product FormLiquid concentrate
AppearanceClear, pale yellow liquid
Specific Gravity (25 °C)1.02–1.05 g/cm³
SolubilityMiscible with common organic solvents; dispersible in water at recommended dosage
pH (1% aqueous solution)6.0–7.5
Recommended Dosage Range0.1–0.5 wt% on total formulation
Shelf Life (unopened, 15–25 °C)24 months


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