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Defrost ECO 4 – type 4 aircraft de-/anti-icing fluid based on propylene glycol.
Complies with the AMS 1424 / ISO11074.
Approved by LIMA-AMIL, TC, FAA, SMI and State Research Institute for Civil Aviation (Russia).

APPLICATION ADVICE

Defrost ECO 4 has to be applied in accordance with the latest edition of official documents publishe by FAA, AEA,
ISO, SAE or individual airlines.

PRODUCT PROPERTIES

The typical values below are used as a product description and are based on our own measurements. They are not
part of the product specification. The current product specification can be obtained from OKSAYD LLC.

Appearance
orange
Density at 20°C (DIN 51757, ASTM D 1122), g/cm3
1.103-1.109
Refractive index at 20°C (DIN 51423, ASTM D 1747)
1.4190-1.4230
pH value (DIN 19268, ASTM E 70)
8.00-9.00
Water content (DIN 51777, ASTM E 203), %
10-14
Freezing point (ASTM D 1177)

Diluted 50:50 with water (v/v), °C


below -20

Viscosity, dynamic at 20°C (ASTM D 2196)

(method Brookfield LVT spindle 31, 0.3 rpm), mPas


10-16

Ignition Temperature (DIN 51794), °C
more than 400
Flash point (DIN 51376, ASTM D 92), °C
more than 100
Boiling point at 1013 h Pa (ASTM D 1120), °C
145
Water spray endurance time (ISO 11078, AMS 1428), min
more than 3
High humidity endurance time (ISO 11078, AMS 1428), min
more than 20
Lowest operation use temperatures

According to ISO 11078, ARP 4737

Neat fluid °C




-25.51

COD (DIN 38409 H.41), mg/g
1280
1Lowest testing temperature in aerodynamic acceptance test

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