CAD-designed modules use silicone-coated glass, PTFE or vermiculite-coated silica fabrics with mineral-wool cores for hot service. Materials and thickness are selected for the equipment temperature and service conditions.
Snap buttons, with magnets where applicable, provide maintenance access; a zipper opens the shell for cleaning and core replacement. Optional fibreglass inserts support the form. Marine-grade snap options use AISI 316 stainless steel. Service life depends on operating conditions, handling and inspection.