Page 137 - Handbook of Surface Improvement and Modification

132 Easy Surface Cleaning and Stain Inhibition

8.2 ADDITIVES USED

Silicone, modified

GENERAL INFORMATION
Name: silicone, modified Active ingredient, wt%: 25-100
Product composition: 25% OH-functional silicone modified polyacrylate,74-75% 1-methoxy-2-
propanol acetate, <0.1% isobutyl methacrylate (impurity); 25% polyether-modified, hydroxy-func-
tional polydimethylsiloxane, 74-75% 1-methoxy-2-propanol, 0.1% 2-methoxy-1-propanol (impu-
rity); >98% polydimethylsiloxane, epoxy functional, <0.1% octamethylcyclotetrasiloxane; 100%
hydroxyalkylethersiloxane (hydroxy-functional polydimethyl siloxane); hydroxy-functional poly-
dimethylsiloxane emulsion in water
PHYSICAL PROPERTIES
State: liquid Odor: characteristic, aromatic, Color: colorless, white,
ester-like, solvent-like yellow, brownish
o
3
Boiling point, C: >100 to 146 Acid #, mg KOH/g: 0.5-28 Density, kg/m : 945-1000
o
OH #, mg KOH/g: 25-50 Viscosity at 25 C, mPas: 50-500
pH: 5-7 Vapor pressure, kPa: 0.003-0.0063
HEALTH & SAFETY
o
o
Autoignition, C: >200 to 392 Flash point, C: 31-178 Rat oral LD50, mg/kg: >2000
to >5000
Rabbit dermal LD50, mg/kg: >5000/1-methoxy-2-propanol acetate; 13000/1-methoxy-2-propanol
Carcinogenic: NTP, IARC, OSHA, ACGIH: No component of this product present at levels
greater than or equal to 0.1% is identified as a known or anticipated carcinogen
USE & PERFORMANCE
Outstanding properties: Increase the hydrophobic and oleophobic properties, which can sig-
nificantly improve the water- and oil-repelling behavior. Reduce dirt adhesion with a simultane-
ously increased easy-to-clean effect. The additive increased substrate wetting, leveling, surface
slip, water resistance (blush resistance), anti-blocking properties and weather resistance. High ant-
graffiti effectiveness. Marker resistance, solvent-free, outstanding hydro- and oleophobic proper-
ties. Anti-graffiti additive with good compatibility and additional beading effect. Highly compati-
ble (minimized risk of haziness)
Recommended for polymers: 2-pack polyurethane, alkyd/melamine, polyester/melamine, acrylate/
melamine and acrylate/epoxy combinations. Used for epoxy resin systems to improve cleanability
(easy-to-clean effect).
Recommended for products: Used for solvent-borne coatings top coats, particularly suitable for
anchoring the additive in the binder matrix. Recommended for use in aqueous topcoats.
Concentrations used, wt%: 2-8% of total formulation