Here’s the product(s) that’s suited for your job
CX Panels, Side & End Wall Inserts, Ceiling Inserts
Container InSerts are a specifically shaped sleeve of EPS foam designed to fill the inset corrugation of a shipping container. They are intended to be used in conjunction with InSoFast Panels to achieve maximum insulation and air-tightness in minimum space. InSerts can be adhered directly to the metal with PL Premium 3X.