does the paste has that blue color?
And which sand paper you are using? Only wet paper with grade 120 to 2000 ? or what are the recommendations?
These Bicron Plastic Szints are still only for counting, not for gammapectroscopy, right?
I was told that Bicron BC412 is used maily for gamma, but BC408 mainly for Alpha and Beta, but you need as well a Zincphoto plate to cover the szint´s top. The zincphotoplate emits a different spectrum that BC408 can register much better than BC412.
hope I understand that right...