BYK-A 500 is a silicone-free air release additive for unsaturated polyester resins, polyurethane, and epoxy systems. It is particularly recommended for transparent systems and is also suitable for epoxy floorings.

Chemical Family: Polyolefins

Labeling Claims: Silicone-free

Compatible Polymers & Resins: Epoxies (EP), Polyurethanes (PU)

End Uses: Gelcoat

Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Special Features and Benefits
  • BYK-A 500 is a highly effective air release additive for virtually all unsaturated polyester resins and processing techniques as well as for epoxy and polyurethane resins.
  • Due to its compatibility, the air release additive is also particularly recommended for transparent systems.

Applications & Uses

Application Area
Compatible Polymers & Resins
Coating End Applications
Use Level
0.1 - 0.5%
Incorporation and Processing Instructions

Stir in the resin before adding other components. In some resins, air release additives may cause haze in the finished part.

Recommended Use

Particularly recommended for unsaturated polyester resins, gel coats and casting systems as well as for epoxy floorings and polyurethane systems.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)0.88g/ml-
Refractive Index (at 20°C)1.495--
Flash Point45.0°C-
Turbiditymax. 10TE/F-
Color Numbermax. 200-Hazen
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Surface Tension27.3mN/mRing dynamometer
Kinematic Viscosity (at 40°C)5mm²/s-
Ignition Temperaturemin. 392°FDIN 51794
Density (at 20°C)0.88g/cc4 (Oscillating U-tube, at 20°C)
Lower Explosion Limit1%V-
Immiscible inWater--
Upper Explosion Limit12%V
Flash Point113°F48 (Abel-Pensky)
Vapor Pressure (at 20°C)5hPaDerived
Initial Boiling Point294.8°FDerived
Melting Pointmax. 32°FDerived
pH Value (at 20°C, 1% Concentration)5-Universal pH Value Indicator
ColorLight yellow--
AppearanceLiquid--
Composition Data

Solution of polyolefin

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories
OEM Specifications