MidShire CompAir 46

Product Overview

MidShire CompAir 46 is a high-quality mineral-based compressor oil formulated for use in rotary screw, rotary vane, and reciprocating air compressors. It meets the requirements of DIN 51506 VDL and ISO 6743-3A (DAA/DAB), making it suitable for a wide range of industrial compressed air applications.

The product is formulated with selected base oils and a carefully balanced additive package to provide good oxidation stability, low carbon residue formation, and effective protection of compressor components under normal operating conditions.

Typical Applications

Rotary screw air compressors (single and two-stage)
Rotary vane compressors
Reciprocating (piston) air compressors — cylinders and crankcases
General industrial compressed air systems
Workshop and factory compressor installations

Key Features & Benefits

Good oxidation stability — resists oil degradation at elevated temperatures
Low carbon-forming tendency — reduces deposit build-up on valves and internals
Good anti-wear properties — protects bearings and moving compressor parts
Anti-rust and corrosion inhibitors — protects ferrous and non-ferrous metals
Anti-foam properties — prevents air entrainment in the oil
Good water separation — supports system cleanliness
Compatible with common compressor seal and gasket materials

Technical Data

Product Name	MidShire CompAir 46
Product Type	Mineral Compressor Oil
ISO Viscosity Grade	ISO VG 46
Kinematic Viscosity at 40°C	46 mm²/s (cSt)
Kinematic Viscosity at 100°C	approx. 6.8 mm²/s (cSt)
Viscosity Index	approx. 100
Density at 15°C	approx. 865 kg/m³
Pour Point	−18°C
Flash Point (COC)	> 220°C
Carbon Residue (Conradson)	< 0.01%
Colour	Pale amber