The case is lined with lightweight anti-static, rigid polyethylene foam, held in place by 3M 90 high strength spray adhesive. Which is reasonably good at adhering to the plastic of the pelicase.

Pelican are good, in that they supply CAD models for the inside cavity of their cases, this makes designing much easier, producing less errors.

Masking out the areas for the spray adhesive

Counter coating the foam pieces, only the side pieces are bonded to the case

Side pieces fitted

Base installed