Most procurement specs treat sandwich panel core types as the main decision — EPS, PIR, mineral wool — then accept whatever steel facing thickness the supplier ships. That’s backwards. The gap between 0.4mm and 0.8mm facing steel dictates fastener pull-out strength and panel rigidity more than any core selection does. After 15 years building these…
If you’ve sourced composite panels for a European client and received different documentation from your US supplier, you’ve hit the naming wall. GRP meaning in composites is simple — glass-reinforced plastic. But GRP is a subset of FRP. All GRP uses glass fiber. FRP can also mean carbon fiber or aramid reinforcement. That naming split…
Most engineers still spec honeycomb panels the way they spec solid plate steel — add 20% thickness, call it safe. That approach wastes material budget and still misses the real failure risks. Honeycomb core panel strength isn’t a single-variable equation where thicker always wins. It’s a multi-variable system where core geometry, material selection, bonding quality,…
Standard embossed metal flooring turns into a liability the moment temperatures drop below freezing. The diamond plate collects moisture, freezes over, and creates a severe slip hazard on truck beds and outdoor platforms. You eat the replacement costs. Worse, the chemical adhesives bonding traditional aluminum skins to their cores turn brittle and fail after just…
Most buyers specify PUF sandwich panels based on thickness alone. That’s a costly mistake. A 100mm panel with foam density below 36 kg/m³ will drive energy bills up by 40% within the first year — and the end client will trace that problem straight back to whoever sourced the material. After 15 years of manufacturing…
Composite panels fail for two reasons: bad core selection and worse bonding. In fifteen years of supplying sandwich panels for commercial construction and specialized vehicles, I’ve seen delamination destroy projects that looked perfect on paper. The difference between a panel that lasts twenty years and one that fails in two usually comes down to understanding…
PVC foam core has dominated composite manufacturing for 30 years. That run is ending. Wind energy blade production — the largest consumer of structural foam cores worldwide — has shifted hard toward PET foam core over the past decade. The reason is straightforward: PVC waste gets burned or buried, while PET recycles at conventional facilities.…
Comparing aluminum sandwich panel specifications without understanding how core materials perform in your actual application is a fast track to project overruns. Honeycomb cores deliver compressive strength and rigidity that foam cores simply cannot match — but they command 3x to 5x the unit price. That premium makes sense for aerospace and high-end curtain wall…
General contractors and developers in 2026 face a brutal combination of escalating labor costs, tightening energy codes, and unforgiving project timelines. The ongoing debate comparing SIPs vs ICFs often distracts from the operational math that actually dictates your bottom line. The hard numbers tell the real story. Field data shows that builders erect structural insulated…
When Airbus subsidiary CTC GmbH ran head-to-head manufacturing trials comparing PMI foam vs honeycomb sandwich structures, the results made several procurement teams reconsider their material specs. A polymethacrylimide foam sheet core delivered 19% lower weight and 25% lower cost than traditional honeycomb construction — while cutting production time by 18 hours on a single aircraft…