General

slip and leveling agent

• improved leveling and surface smoothness

• increased slip and mar resistance

• acting as a defoamer and de-aeration aid

• no formation of Bénard cells (anti-floating effect)

Chemical Nature

solvent-free modified polysiloxane

Properties

physical form

clear to cloudy liquid

storage

Leveling additives/EFKA 3239 should be stored in a cool dry place

typical properties (no supply specification)

active ingredients	~98%
density at 20 °C (68 °F)	~0.93 g/cm3
refractive index	~1.444
flash point	63°C(145°F)
color	≤2

Application

Leveling additives/EFKA 3239 is an organically modified polysiloxane, soluble in aliphatic and aromatic hydrocarbons, esters and ketones but insoluble in water. It improves the general surface characteristics of solvent based and solvent free coatings. Efka® SL 3239 is particularly recommended for these coatings:

• baking enamels based on alkyd, acrylic or polyester resins

• acid-curable or polyurethane wood finishes particularly if applied by curtain coating

• self-leveling epoxy flooring compounds

• UV-curable paper lacquers

Recommended Concentrations

0.05 – 0.5% on total formulation