I have a 1:144 C-5 Galaxy on the bench which I have very recently masked. During masking, I noticed several doors in the fuselage which are supposed to have portholes. The portholes are scribed but I wish to create the real article. I recall reading a hint somewhere advising the use Plasti-card and clear cement. However, the author did not elaborate.
Questions:
a. Is Plasti-card a modelling product?
b. Am I correct in assuming (dangerous, I know) the Plasti-card is affixed to the inside and clear glue applied from the outside?
c. How is the clear glue applied?
Thanks for any advice.