Sandwich panels bond two skins (metal, HPL, plywood, GRP) to a lightweight core (foam, honeycomb, mineral wool). Here the adhesive doesn't just join; it carries the panel's strength.
Why bond?
- Load spreads across the whole surface, allowing thin, light materials.
- No thermal bridges from mechanical fixings.
- Surfaces stay flat and attractive.
Applications
- Cold rooms and insulation panels
- Caravan, truck body and trailer walls
- Steel and interior door cores
- Lightweight furniture and shopfitting panels
- Facade composite elements
Adhesive options
| System | Advantage | Typical use |
|---|---|---|
| 2C PU | High strength, cure independent of moisture | Insulation panels, caravans |
| 1C PU | Single component, easy application | Door cores, light panels |
| PUR hot melt | Fast green strength, continuous lines | Lightweight furniture panels |
| MS polymer / hybrid | Elastic, joins dissimilar materials | Assembly and edge details |
Process tips
- Foam cores: some foams are solvent-sensitive; avoid solvent-based products.
- 1C PU and moisture: in dry conditions or on impermeable skins, a water mist can speed curing.
- Press time: choose open time and press time to suit panel size and line speed.
- Surface preparation: clean oil and dirt from metal skins and use a primer if needed.
Let's evaluate the right system and metering solution for your panel production together.
Need support with your application?Our technical team supports product selection and line trials.
Request a Quote
