14SiSILICONZEMSIL®

ZEMSIL DF-P

Dow Corning Antifoam 1520-US

Silicone Defoamer (Paper industry specialist type)

Also equivalent to: Buckman Bubreak 3005

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Response within 24 hours

25

%

Active Silicone Content

White to off-white liquid

Appearance

6.0–8.0

pH

30–150

ppm

Dosage

Specifications

PropertyValueUnit
Active Silicone Content25 ± 1%
AppearanceWhite to off-white liquid
pH6.0–8.0
Viscosity @ 25°C300–800mPa·s
Density @ 25°C~1.01g/mL
Recommended Dosage30–150ppm
DilutionPre-dilute 1:10 with warm water

Applications

Kraft pulping black liquor foam controlPaper and board coating colour defoamingWhite water loop foam suppression on the paper machineSurface sizing starch bath foam control

Key Features

  • Optimised hydrophobic particle size distribution specifically designed for paper wet-end foam structures
  • No adverse impact on sheet brightness, opacity, or formation at recommended dosage
  • Compatible with both cationic and anionic retention aid and sizing systems

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ZEMSIL DF-P | ZEMSIL® | ZEMSIL®