How to get the best from your impregnation plant

Checking Out The System

How to get the best from your impregnation plant

The IoIT is a not-for-profit organisation working to provide a global standard for impregnation of porous materials, with consistent test processes and equipment that will provide an objective measurement leading to a dependable standard.

How to get the best from your impregnation plant

The main emphasis of quality control is built around the US MIL Test Ring. This is an excellent test to show how well the system is working. If the system is faulty, the ring can give some indication as to what could be the problem. Bear in mind that not all sealants are the same, meaning that some may perform better than others. It is also a useful tool when considering alternative impregnants. The ring is precise and will show even marginal differences between comparable products.

US MIL Test Ring

To start with, some questions:

  1. What type of sealant are you using?
  2. Is your sealant US MIL-I-17563C approved?
  3. Do you have an effective quality audit?
  4. Are you satisfied with the sealing performance?
  5. Do you use a test ring to evaluate process performance?
  6. Do you regularly impregnate more than once?

Checking Out The System

These headings refer to pages in this section. Click the heading or the button on the left to go to the relevant page.

Gel time

Check condition of sealant

Check that correct temperature is being applied for curing

Check orientation of component – porosity position

Condition of the component prior to impregnation

Vacuum for impregnation

Using test rings in routine processing

Test Ring Chart

In Conclusion