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Help CenterGerman Technical Background VOK-306 Leveling Agent Replaces BYK-306 Used in Polyurethane and Epoxy Systems to Reduce Surface Tension
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German technical background VOK®-SL 306 leveling agent
VOK®-SL 306 contains silicones as a surface additive for room-temperature curing plastic systems and solventborne coating systems that significantly reduces surface tension.
Good substrate wetting, anti-crater and increased surface slip
Product Information Chemical composition Polyether modified polydimethylsiloxane solution
Typical physicochemical data
The data presented on this data page is typical and not a product specification.
Density (20 °C): 0.93 g/ml
Non-volatile (30 min., 150 °C): 12.5%
Solvent: xylene/ethylene glycol monophenyl ether 7/2
Flash point: 25 °C
Storage and transportation
Delamination or turbidity may occur at temperatures below 5 °C, heated to 20 °C and thoroughly mixed.
Application information
Room temperature curing plastic system
Features and benefits
VOK®-SL 306 is a highly effective silicone additive that significantly reduces surface tension and thus improves wetting of difficult-to-wet substrates. When used in pigment filling systems, it prevents the formation of Bernard vortices and improves leveling.
Recommended apps
VOK®-SL 306 is recommended for polyurethane and epoxy systems.
Recommended dosage 0.1-0.5% Additive dosage (purchased form) is based on total formulation
The above data are empirical dosages, and good dosages need to be determined through a series of tests.
Joining methods and processing instructions
The additive can be added at any stage of the production process or later.
The additive can be added at the final stage of production to avoid foam stabilization, a method that has proven to be very effective.
Pay special attention
Compared to silicone fluids, the additive is safer to use. However, surface defects should still be tested in the corresponding system before mass use.
Coatings industry
Features and benefits
The silicone additive significantly reduces the surface tension of the coating system and effectively wets difficult-to-wet substrates. VOK®-SL 306 improves acceptance of dust and paint mist and increases surface slip. The additive reduces the sensitivity of wood and furniture coatings to air currents and improves the orientation of matting agents.
Recommended apps
The additive can be used in all solventborne systems.
Recommended dosage
0.1-0.5% additive dosage (purchased form) is based on total formulation
The above data are empirical dosages, and good dosages need to be determined through a series of tests.
Addition method and processing instructions The additive can be added at any stage of the production process or later. To facilitate dosing, the additive can be pre-diluted.
Pay special attention
Compared to silicone fluids, the additive is safer to use. However, foam stabilization, recoating and crater tendencies in the corresponding system should still be tested before mass use.
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