Galden DET Detector Fluid – TMC Industries, Inc.

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Galden DET Detector Fluid

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Gross Leak Testing
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Galden® DET detector fluid is used in gross leak testing as the low boiling fluid. 

Galden® PFPE Hermetic Seal Testing

Hermetic Seal: The Test

Electronic devices must be completely sealed to avoid penetration by moisture and potential damage of the electrical response of the silicon chip.

To guarantee the hermeticity of devices, a leak test procedure has been defined and ruled by MIL-STD 883, MIL-STD 750, and MIL-STD 202.

Galden® PFPE fluids being extremely inert and residue free are ideal and widely used as detector and indicator fluids in leak test procedures.

Galden® DET

Detector fluid is specifically designed for high-reliability measures.

Galden® DET, Type I and III detector fluid offers higher reliability with respect to traditionally used fluids.

Galden® DET, thanks to its perfect balance between low and high boilers components, can easily detect large and small leaks:

  • High boilers enter through large leaks and remain liquid until the test is performed
  • Low boilers can easily penetrate into small leaks

Galden® D02 and D03

Low consumption indicator fluids.

Galden® D02 and D03 can be advantageously used as Indicator fluids respectively in military and non-military applications.

  • Higher boiling point
  • Lower vapor pressure at test temperature

Will Result in ...

  • Reduced evaporative loss
  • Lower consumption compared to other commercially available indicator fluids

Fluid Type

Type I Detector

Type II Indicator

Type III Detector

Test Condition

C1, C3



Galden® Fluids




Hermetic seal testing

                                                                            Detector Fluids
Typical Properties                                           Units                   DET
Boiling point                                                    °C                         81
Pour point                                                        °C                     –110
Density at 25 °C                                            g/cm³                   1.70
Density at 125 °C                                          g/cm³                      –
Kinematic viscosity at 25 °C                            cSt                      0.60
Kinematic viscosity at 125°C                           cSt                         –

Specific heat at 25 °C                                    J/Kg·°C                  973
Thermal conductivity at 25 °C                      W/m·°C                  0.07
Coefficient of expansion                         cm³/cm³·°C                0.0011
Surface tension                                            dyne/cm                   16
Dielectric strength                              kV (2.54 mm gap)              40
Dielectric constant                                                                        2.1
Volume resistivity                                       Ohm· cm                    5·10¹⁵

Average molecular weight                             amu                        430

Typical properties (Not for specification purpose)

Shipping Policy

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

Shipping Time -- Most orders received before 3:00PM Central Time will ship the same day, provided the product ordered is in stock. Most orders received after 3:00 PM will ship the next business day. Orders are not processed or shipped on Saturday, Sunday or major US holidays.

We cannot guarantee when an order will arrive. Consider any shipping or transit time offered to you by the carrier as an estimate. We encourage you to order in a timely fashion to avoid delays caused by shipping or product availability.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

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