Which cleaning method and cleaning solution should I use after automatic soldering?

Through-hole type
Refer to the table below to select a cleaning method and cleaning solution.

Contact us before using other cleaning solution. Do not use Freon TMC, thinner or gasoline for any relay.
Note that using water-based or alcohol-based cleaning agent may be less effective in cleaning between relay and PCB.
As a countermeasure, there are models with higher standoffs.
Efforts are underway worldwide to eliminate the use of CFC-113 (commonly known as CFC) and 1.1.1 trichloroethane.
We ask for your cooperation eliminating use of these.

Surface-mount type

• Use an alcohol- or water-based cleaning agent when cleaning after reflow soldering. The cleaning temperature should be 40°C or less.
• To clean the entire unit, immersion or cleaning by boiling is recommended. Do not use ultrasonic cleaning. It may cause disconnection of the coil or slight welding of the contact.
  Contact us before using other cleaning solution. Do not use Freon TMC, thinner or gasoline for any relay.
  Note that using a water-based or alcohol-based cleaning agent may be less effective in cleaning between relay and PCB.
  As a countermeasure, there are models with higher standoffs.
  Efforts are underway worldwide to eliminate the use of CFC-113 (commonly known as CFC) and 1.1.1 trichloroethane.
  We ask for your cooperation in eliminating use of these.

For more information, see Safty Precautions for All Relays: 6-10 Automatic Mounting of Relays for PCBs.

Ultrasonic cleaning is applicable to the following models:
G6A, G6E, G6B, G2R (plastic-sealed type).
*Refer to the datasheet for detailed specifications.