Metalworking Additives

ALOX® 2188 Rust Preventive

ALOX® 2188 rust preventive provides exceptional protection against rust and staining, and ensures consistent performance.

ALOX® 2188 Rust Preventive The ALOX 2188 barium-based package offers excellent rust protection using a selected blend of inhibitors that include the barium soap of an oxygenated hydrocarbon. This rust preventive is soluble in solvent, solvent/oil, and oil diluents to meet a full range of treat rate and performance requirements, and provides up to 100 hours of rust
protection as measured by the ASTM B117 salt spray test.

ALOX 2188 rust preventive is non-staining, so treated metals can be stacked or coiled without blemish. Its exceptional salt spray performance makes it ideal for treating metals that are to be shipped overseas or warehoused near the ocean. It also offers excellent water separation and water displacement properties, ensuring film consistency in dip tank applications.

Recommended Applications

  • Slushing oils
  • Protective storage and shipping fluids
  • Dip tank fluids
ALOX 2188 Rust Preventive Features and Benefits
Features Benefits
Superior salt spray protection

Non-staining – safe for use on coiled or
stacked metals		 Premium rust protection for markets that prefer a barium package
Outstanding water displacing/metal wetting properties

Superior water separating properties		 Improved protection through reduction in water contamination
Non-corrosive to a variety of non-ferrous metals, including copper, aluminum, zinc, magnesium, brass, and cadmium Expanded application versatility
Exceptional solubility and cold-temperature stability in a wide range of petroleum diluents Improved quality and stability of finished protective fluid

Increased formulation flexibility, enabling multiple performance levels while reducing complexity
Recommended Formulations
Level of
Rust Protection		 Percentage of
ALOX® 2188		 Percentage of
Diluents		 Salt Spray
Performance
ASTM B117 (avg.hours)
Maximum 20% Aliphatic Petroleum Solvent: 80% 120
General Purpose 5-15% Aliphatic Petroleum Solvent: Balance 16 - 92
Soft Film 10-15% Mineral Oil: 10-15%
Aliphatic Petroleum Solvent: Balance		 38 - 68
Oily Film 10-20% Petroleum Oil: Balance 20 - 68

ASTM B117 Salt Spray Performance Highlights

ASTM B117 Salt Spray Performance Highlights   ASTM B117 Salt Spray Performance Highlights
ALOX® 2188 rust preventive is capable of achieving up to 100 hours protection in salt spray environments as measured by ASTM B117 test method.*   In the same ASTM B117 salt spray test, rust preventives containing a commercially available additive did not adequately protect metal panels from rust.*
* 20% treat rate, 140°F (60°C) Flash Point Solvent

Enhanced Performance: Lubrizol Water Separation Test

Water
Separation**		 ALOX® 2188 Traditional Calcium
Based
Time to Separate (min:sec) 1:56 5:08
Water Layer Clear Clear
Organic Layer
ml Clear/ml Hazy		 Clear Clear
Water Separation
Water Separation
Time to Separate – 2:30 (min/sec)
15% Additive in 100°F (40°C) Flash Point Solvent
 **15% Additive in 100°F (40° C) Flash Point Solvent
 Method/Procedure:
  -75 ml of RP solution; 25 ml water
  -Invert six times in a 100 ml graduated cylinder
  -Record time to separate 25 ml of water

Typical Properties
Property Description
Appearance Waxy Brown Solid
Specific Gravity @ 15.6°C 0.93
Acid Number, mg KOH/g 12
Saponification 30
Viscosity, cSt @ 100°C 13
Melt Point, °C 38