Caltech India is the manufacturer and supplier of CES 15 Wetting Agent, which is used for Low Voltage Pinhole detector, also popularly known as Wet Sponge Pinhole Detector. In this technique, a wetting agent is recommended to be used as water has many difficulties reaching the conductive substrate underneath, especially on thicker protective coatings up to 500 microns when the water must penetrate further into a pinhole to reach the substrate. In these instances, inspectors will use a surfactant (wetting agent) to lower the surface tension of the water, allowing the solution to better penetrate the pinhole.
When testing for pinholes on coatings, and other applications where you do not wish to damage the coating; typically, the wet sponge technique, also known as the low voltage pinhole method, is used.
Procedure is very simple; you need to wet the sponge. This should be done with clean tap water, as it contains salts that allow it to conduct electricity. It’s important that you have an appropriate amount of water on the sponge before testing, as too little water will not conduct electricity and not locate any pinholes; whereas too much water will drip from the sponge and cover the surface under test, which can result in pinholes being detected in the wrong location. So, to ensure the sponge is suitably wetted; first thoroughly wet the sponge, then squeeze out the excess – so the sponge is damp, but water is not dripping freely from it.
Ordering Information:
CES 15 – Wetting Agent
In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.
