{"id":39005,"date":"2023-09-29T09:07:44","date_gmt":"2023-09-29T07:07:44","guid":{"rendered":"https:\/\/panelsandwich.org\/02-raw-materials\/"},"modified":"2026-09-24T08:37:29","modified_gmt":"2026-09-24T06:37:29","slug":"02-raw-materials","status":"publish","type":"page","link":"https:\/\/panelsandwich.org\/en\/sandwich-panel-technical-information\/02-raw-materials\/","title":{"rendered":"02 – Raw Materials"},"content":{"rendered":"
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TECHNICAL INFORMATION \u00b7 RAW MATERIALS<\/p>\n

Sandwich panel materials: metal faces and insulating cores<\/h1>\n

A sandwich panel combines two rigid faces separated by a lightweight core. The faces provide protection, geometry, and load-bearing capacity; the core transmits shear stresses, keeps the faces separated, and provides most of the thermal insulation. <\/p>\n

This guide preserves the historical technical information available on PanelSandwich.org, but explicitly separates old reference values from the performance levels that must be verified today in the technical data sheet and specific product documentation.<\/p>\n

\n Metal faces \u2193<\/a>\n Insulating cores \u2193<\/a>\n <\/div>\n <\/div>\n
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\nMetal Faces<\/a>\nAluminum<\/a>\nStainless steel and copper<\/a>\nPUR \/ PIR<\/a>\nPhenolic foam<\/a>\nFoam properties<\/a>\nMineral Wool<\/a>\nWool properties<\/a>\nComparison<\/a>\nWhat to verify today<\/a>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Why raw materials define the panel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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The development of sandwich panels responds to the search for lightweight enclosures with high insulation and fast assembly. Rigid PUR\/PIR foams allowed for reduced weight and thickness compared to traditional solutions, and the subsequent incorporation of mineral wool expanded options for fire resistance and acoustics. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Structure<\/div>

Two rigid faces<\/h3>

The exterior surfaces are manufactured with relatively high-modulus materials and are kept separated by the core.<\/p><\/div>\n

Mechanics<\/div>

Lightweight core<\/h3>

The core provides stiffness to the assembly and supports a significant portion of the shear stresses between the faces.<\/p><\/div>\n

Performance<\/div>

Integrated insulation<\/h3>

The core functions simultaneously as an insulating material, allowing for lightweight and fast-to-assemble enclosures.<\/p><\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Metal faces: requirements and materials<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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The exterior metal faces are described in historical documentation as relatively thin, high-strength sheets. They must be capable of being roll formed and bent during manufacturing<\/strong> and, once incorporated into the panel, respond to different needs depending on the application. <\/p>\n