What are the differences in core-to-face bonding strength between continuous and discontinuous composite sandwich panel production?
The continuous lamination process (double-belt laminator) uses precise metering[…]
How can you determine whether your XPS foam core was produced with CO₂ blowing or fluorocarbon blowing?
The EU and China have banned HCFC-141b as a[…]
How do the sound insulation performances of different core sandwich panels rank, and why?
Sound reduction index Rw ranking (same thickness 50mm): PU[…]
Can the fire resistance rating of rigid PU foam sandwich panels reach Class A? How to improve it?
Pure organic PU foam is typically Class B2 or[…]
How good is XPS foam’s aging resistance? Why do some brands claim a 50-year lifespan?
The chemical composition of XPS (polystyrene) is extremely sensitive[…]
PVC foam has high water absorption; is it suitable for marine sandwich panels?
Cross-linked PVC foam (e.g., Airex® type) can have water[…]
In automotive composite applications, why is PET sandwich panel more common than PU?
Vehicle interiors must meet stringent VOC (Volatile Organic Compound)[…]
Why are XPS foams prone to thermal warping with metal facings, and how to handle it?
XPS has a coefficient of thermal expansion of approximately[…]
Why is the chemical compatibility of PET foam with epoxy adhesives better than that of PU foam?
PET foam surfaces contain polar ester groups that can[…]
ONEBOND is a sandwich panels provider integrating production and sales, research and development.