Happy New Year TechNet !

Here is a first query for 2020...

We all know about the need of carefully segregate acrylic/urethane from silicone conformal coatings, but how about evidencing and demonstrating (say for an angry auditor) the actual lack of silicone cross-contamination on toolings, ovens and workspaces ?

Are you aware of any reliable test system to perform silicone contamination evaluations? What are their principles and related test methods & acceptance criteria?

It looks like some suppliers offer Surface Silicone Contamination Test Kits :

-          Henniker Plasma<https://plasmatreatment.co.uk/wp-content/uploads/2016/09/Henniker-Plasma-Technology-Overview.pdf> : https://plasmatreatment.co.uk/henniker-plasma-technology/products/surface-test-equipment/test-for-surface-silicone-contamination/

-          Anderson Materials Evaluation : http://www.andersonmaterials.com/test_methods/testing-facilities-for-silicone-contamination.html#<http://www.andersonmaterials.com/test_methods/testing-facilities-for-silicone-contamination.html>

Any practice of such test kits and return of experience to share?

Thanks in advance for your feedbacks.

Best regards,

Arnaud Grivon