BYK—011  

Silicone-free polymeric defoamer for aqueous systems (and radiation-cured systems). Especially recommended for 2K polyurethane systems with excellent recoatability.

BYK-011 is a mixture of foam breaking polymer and hydrophobic particles, silicone free

  Transportation and Storage  

Transport and storage temperature must be between 0°C and 40°C, stratification or turbidity may occur, mix well before use

  Typical value

  usage

BYK-011 is suitable for defoaming of water-based coatings (and radiation-curing systems) and is free of silicones and mineral oils. Especially recommended for waterborne 2K polyurethane systems and to prevent foaming during curing agent addition. BYK-011 is also suitable for use in varnishes and for defoaming of ultrafiltrates. Recommended dosage Waterborne two-component polyurethane system: 1-2.5% Additive dosage (as purchased) based on total formulation Other waterborne systems: 0.1-1.5% Additive dosage (as purchased) based on total formulation

The above data are empirical dosages, and the optimal dosage needs to be determined through a series of experiments.

Incorporation Method and Processing Instructions

The defoamer is easy to add and requires no grinding. Can be added to abrasives or letdowns.