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Fluorescent Dyes

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Suggested Dye Amount for Industrial Fluid Systems

Application

Product Number

Suggested Dilution Ratio

% Dye to System Fluid

Petroleum-Based Fluid Systems:
Light-colored hydraulic fluid

Very dark or intensely blue hydraulic
and lubrication fluids

Compressor oil

Engine oil

Gearbox oil

OIL-GLO 22
OIL-GLO™ 22
Fluoresces yellow

1 oz (30 ml) per 4 gals (15.1 L) hydraulic fluid

1 oz (30 ml) per 2 gals (7.6 L) hydraulic fluid

1 oz (30 ml) per 2 gals (7.6 L) compressor oil

1 oz (30 ml) per 1.5 gals (5.7 L) engine oil

1 oz (30 ml) per 2 qts (1.9 L) gearbox oil

0.20%

0.39%

0.52%

1.56%

Synthetic- or Petroleum-Based
Fluid Systems:
Light-colored hydraulic fluid

Very dark or intensely blue hydraulic
and lubrication fluids

Compressor oil

Engine oil

Gearbox oil

Fuel (gasoline or diesel)

OIL-GLO 33
OIL-GLO™ 33
Fluoresces bright green

1 oz (30 ml) per 8 gals (30.3 L) hydraulic fluid

1 oz (30 ml) per 4 gals (15.1 L) hydraulic fluid

1 oz (30 ml) per 4 gals (15.1 L) compressor oil

1 oz (30 ml) per 3 gals (11.4 L) engine oil

1 oz (30 ml) per 1 gal (3.8 L) gearbox oil

1 oz (30 ml) per 12-18 gals (45.4-68.1 L)
gasoline/diesel fuel

0.10%

0.20%

0.26%

0.78%

0.04-0.07%

Synthetic- or Petroleum-Based
Fluid Systems:
Light-colored hydraulic fluid

Very dark or intensely blue hydraulic
and lubrication fluids

Compressor oil

Engine oil

Gearbox oil

OIL-GLO 40
OIL-GLO™ 40*
Fluoresces blue

1 oz (30 ml) per 8 gals (30.3 L) hydraulic fluid

1 oz (30 ml) per 4 gals (15.1 L) hydraulic fluid

1 oz (30 ml) per 4 gals (15.1 L) compressor oil

1 oz (30 ml) per 3 gals (11.4 L) engine oil

1 oz (30 ml) per 1 gal (3.8 L) gearbox oil

0.10%

0.20%

0.26%

0.78%

Synthetic- or Petroleum-Based
Fluid Systems:
Light-colored hydraulic fluid

Very dark or intensely blue hydraulic
and lubrication fluids

Compressor oil

Engine oil

Gearbox oil

Fuel (gasoline or diesel)

OIL-GLO 44
OIL-GLO™ 44
Fluoresces yellow/green

1 oz (30 ml) per 8 gals (30.3 L) hydraulic fluid

1 oz (30 ml) per 4 gals (15.1 L) hydraulic fluid

1 oz (30 ml) per 4 gals (15.1 L) compressor oil

1 oz (30 ml) per 3 gals (11.4 L) engine oil

1 oz (30 ml) per 1 gal (3.8 L) gearbox oil

1 oz (30 ml) per 12-18 gals (45.4-68.1 L)
gasoline/diesel fuel

0.10%

0.20%

0.26%

0.78%

0.04-0.07%

Gasoline and Diesel Fuel Systems

GAS-GLO 32
GAS-GLO™ 32
Fluoresces yellow

1 oz (30 ml) per 10 gals (37.9 L)
gasoline/diesel fuel

0.08%

Water- and Water/Glycol-Based Fluid Systems – Both Static and Circulating

WD-801: fluoresces blue*†

WD-802: fluoresces green

WD-803: fluoresces blue/green†

1 pt (0.5 L) per 500 gals (1,900 L) water

1 pt (0.5 L) per 1,000 gals (3,800 L) water

1 pt (0.5 L) per 500 gals (1,900 L) water

0.03%

0.01%

0.03%

Air Conditioning and Refrigeration Systems:
Refrigerant leaks

BEZ-4/E and EZ-4/E
BEZ-4/E** or EZ-4/E***
Fluoresce yellow/green

1/4 oz (7.5 ml) per 1 gal (3.8 L) system lubricant [approximately 1/4 oz per 15 lbs (7 kg) of refrigerant or 10 tons of cooling]

0.20%

The dilution ratios of Spectroline® fluorescent dyes to the host fluids shown above are only guidelines. These ratios can be increased or decreased depending on
the fluorescent response required and the ambient lighting conditions. A simple way to check for proper fluorescence is to shine the UV or blue light lamp on the
fluid reservoir of a system and check for a bright fluorescent response.

* Use with UV lamps only.
** Requires BEZ-50 injector and BEZ-25 hose/coupler
*** Requires EZ-50 injector and EZ-25 hose/coupler
† Does not change the color of the host fluid.

Custom Designed for Your Specific Application

For applications that require exact dosing of fluorescent dye at precise intervals of time, such as for an oil pipeline or engine plant assembly line operation, we offer solutions ranging from a simple trigger gun syringe to metering pumps that can be programmed, configured and calibrated to your specific application needs.

The pumps feature:

Key pad interface
Adjustable pump speeds
Adjustable fill volumes (or strokes per dispensing cycle)
Repeat cycling with adjustable time delay
Easy integration with conveyors, robotics or other automation

Call us at 1-800-274-8888 or 516-333-4840 and ask about our Industrial Testing Service. Simply provide us with a sample of the host fluid and we can quickly determine the best dye for your application. Our engineers are always available to help you find the right solution to your leak detection problems.

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