As preparation for the making of the ‘Window Liners’ is figuring out what materials I can best use.

I first thought it was MDF-wood but that is much too cumbersome and too heavy.

I've been in contact with hobbyists in the modelbouwwereld that submarines in the other crafts, and they advise me to try with styrofoam. Not the white styrofoam that you can find in the Brico or Gamma but specific insulation styrofoam with a minimal grain and good density such as Styrodur and Polyfoam.

Since the local hardware store no Styrodur and Polyfoam I'm going to experiment with Polyfoam.

The goal is to have these Polyfoam in a particular form, edit it with Epoxy and woven glass cloth and then finish it with shipping to most european countries.

The Polyfoam, Epoxy, glass cloth and shipping to most european countries I've been in-house but I must wait with my experiments up to the spring in the country and it gets warmer. Epoxy can be processed from a temperature of 18° to 25°. And for the health is that indoors is not an option.

In the meantime, I have some tests done with Polyfoam and who are all promising ...
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