BYK-3550 - Omya

Coatings Industry
Special Features and Benefits
The additive generally provides a strong reduction in the surface tension of the wet coating, which improves substrate wetting and prevents cratering. It also improves leveling. BYK-3550 exhibits a different range of properties depending on the polarity of the system. In polar coatings, it shows an excellent compatibility, which enables homogeneous distribution in the film. In non-polar systems, BYK-3550 has a slight incompatibility, which results in a concentration at the surface of the coating.

Polar systems: The influence on the surface energy of the cured coating film is negligible. Therefore surface slip is not increased and the recoatability and adhesion of protective foils and adhesives is improved. BYK-3550 can be used in the complete coating structure, from the primer to the top coat. The additive also improves the orientation of matting agents.

Non-polar systems: BYK-3550 improves the anti-blocking properties, without influencing the recoatability or the gloss.

Recommended Use

Industrial coatings
Automotive coatings
Architectural coatings
Can coatings
Coil coatings

Recommended Levels

0.05-0.4% additive (as supplied) based on the total formulation, for anti-blocking up to 0.6%. The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.

Incorporation and Processing Instructions : The additive can be incorporated during any stage of the production process; however, post-addition is recommended. It is important to test the compatibility in the respective coating system.

Properties

Physical Form

Liquid

Typical Properties


	Value	Units	Test Method / Conditions
Flash Point	45	°C	-
Solvents	Methoxypropylacetate	-	-
Non Volatile Matter (at 150°C in 10 min)	52	%	-
Density (at 20°C)	1.01	g/ml	-

SDS Physical and Chemical Properties


	Value	Units	Test Method / Conditions
Dynamic Viscosity (at 20°C)	80	mPa.s	11 (NV, at 20°C)
Ignition Temperature	min. 392	°F	DIN 51794
Density (at 20°C)	1.006	g/cc	4 (Oscillating U-tube, at 20°C)
Flash Point	113	°F	48 (Abel-Pensky)
Vapor Pressure (at 20°C)	355	Pa	Derived
Initial Boiling Point	295	°F	Derived
Melting Point	max. 32	°F	Derived
pH Value (at 20°C, 1% Concentration)	7	-	Universal pH-Value Indicator
Odor	Solvent-like	-	-
Color	Colorless	-	-
Appearance	Liquid	-	-

Storage & Handling

Storage Information: The product may become turbid at temperatures above 30°C. Please stir before use. The effectivity of the product is not affected.