PU Adhesive for Aluminum Honeycomb Panels
Two-component, solvent-free polyurethane adhesive (A : B = 5 : 1) for bonding aluminum honeycomb cores to calcium-silicate board, aluminum / steel sheet and marble / granite — non-foaming, high bond strength, water / cold / weather resistant, curing at room temperature or with heat.
A solvent-free adhesive for aluminum honeycomb
PUGLUE’s aluminum-honeycomb adhesive is a two-component, solvent-free polyurethane (A : B = 5 : 1) with no benzene or formaldehyde. It bonds the aluminum honeycomb core to calcium-silicate board, aluminum / steel sheet and marble / granite with ≥6 MPa metal-to-metal strength (on board the substrate fails first). Thixotropic and non-foaming, it cures at room temperature under press — or in 20 min at 80°C — with excellent water, cold and weather resistance.
Bonds Aluminum Honeycomb to Every Skin
One two-component solvent-free system bonds aluminum honeycomb cores to the full range of decorative and structural facings.
Core
- Aluminum honeycomb
- Mixed metal honeycomb cores
Skins / facings
- Calcium-silicate board
- Aluminum & steel sheet
- Marble & granite veneer
- Stone, GFRP & HPL
Why this adhesive
- No benzene / formaldehyde
- Non-foaming, thixotropic
- Does not dissolve polystyrene
- Water / cold / weather resistant
Types of Aluminum Honeycomb Adhesive — and Which to Choose
Aluminum honeycomb panels are bonded with several chemistries. PUGLUE’s two-component solvent-free PU (5:1) is the choice for clean, durable core-to-skin bonds.
| Adhesive type | Components | Best for | Notes |
|---|---|---|---|
| Two-component PU (5:1) | A + B, solvent-free | Aluminum honeycomb core-to-skin | Non-foaming, ≥99% solids, no benzene/formaldehyde, ≥6 MPa, room-temp or 80℃ cure. PUGLUE core product. |
| Two-component epoxy | A + B | High-rigidity structural panels | Very rigid but brittle and slower; less peel flexibility than PU. |
| Epoxy film adhesive | 1K (heat-cure) | Aerospace-grade panels | Needs hot-press / autoclave; higher cost. |
| 1K PU (MPU-20) | Single-component | Paper honeycomb & board | For paper / kraft honeycomb — see our paper honeycomb adhesive. |
Where PUGLUE Aluminum Honeycomb Adhesive Is Used
From architectural curtain walls to lightweight stone panels, it bonds rigid aluminum honeycomb composite panels.
Curtain Walls & Facades
Stone- and metal-faced aluminum honeycomb panels for building facades and cladding.
Lightweight Stone Panels
Thin marble / granite veneer bonded to aluminum honeycomb for lightweight stone panels.
Calcium-Silicate Faced Panels
Fire-safe calcium-silicate board bonded to aluminum honeycomb for partitions and cladding.
Architectural & Interior Panels
Lightweight rigid panels for ceilings, partitions and decorative interiors.
Transport Interiors
Aluminum honeycomb floors and panels for rail, marine and transport interiors.
Furniture & Worktops
Lightweight aluminum honeycomb tabletops, doors and worktops.
Engineered Performance
Clean, strong and weatherproof — the profile aluminum honeycomb lines require.
Solvent-free & clean
≥99% solids with no benzene or formaldehyde — safe, low-emission room-temperature curing.
High bond, non-foaming
Metal-to-metal ≥6 MPa with a non-foaming glue line; on board the substrate fails first.
Water, cold & weather resistant
Keeps panels stable through moisture, cold and outdoor weathering; doesn’t dissolve polystyrene.
Room-temp or heat cure
Cures at room temperature under press, or in 20 min at 80°C; low-flame-spread compliant.
Mixing & Application
A two-component 5:1 system for aluminum honeycomb lamination.
Clean the surface
Remove oil, dust, rust and water from the core and skin surfaces (stir settled component A first).
Mix A : B = 5 : 1
Weigh A and B at 5:1, stir with a power mixer until uniform, and pour immediately.
Scrape-coat ~300 g/m²
Apply single-side with a serrated scraper at about 300 g/m² (small batches for roller use).
Press & cure
Composite, stack and press; cure at room temperature, or 20 min at 80°C. Use within the ≤15 min pot life.
Technical Parameters
Two-component, solvent-free PU — representative values.
| Property | Value |
|---|---|
| Type | Two-component, solvent-free polyurethane |
| Color | A: white viscous body | B: brown liquid |
| Viscosity (25°C) | A: 9000 ± 100 mPa·s | B: 2100 ± 50 mPa·s |
| Mixing ratio | A : B = 5 : 1 (by weight) |
| Density | 1.30 ± 0.11 g/cm³ |
| Solid content | ≥99% (solvent-free) |
| Tensile strength | Metal–metal ≥6.0 MPa; metal–non-metal: substrate fails |
| Media resistance | Does not dissolve polystyrene foam |
| Pot life (mixed) | ≤15 min |
| Coating weight | ~300 g/m² |
| Cure | Room temperature under press, or 80°C × 20 min |
| Flame spread | Complies with the low-flame-spread test procedure |
| Packaging | A: 25 kg iron drum | B: 5 kg plastic drum |
Download Aluminum Honeycomb TDS (PDF)
Mixed pot life is about 15 min at room temperature — mix only what you can use. Store at ambient temperature, away from sunlight and freezing.
A Manufacturer You Can Build On
A dedicated polyurethane adhesive manufacturer — not a trading reseller — supplying honeycomb-panel plants worldwide since 2010.
Consistent, tested quality
In-house QC on every lot so viscosity, pot life and bond strength stay repeatable.
Full technical support
TDS, free trial samples and engineer support to match your core, skin and press cycle.
OEM & private label
Manufacturer-direct pricing, your branding and stable supply — no middleman.
Packaging, Samples & OEM Supply
Manufacturer-direct supply built around honeycomb-panel procurement.
Packaging
Component A in 25 kg iron drums, component B in 5 kg plastic drums (5:1 set).
Free trial sample
Trial samples with full TDS so you can validate bond and pot life before committing.
OEM / private label
Your brand, your spec — manufacturer-friendly MOQ and repeatable batches.
Global export
Export-ready documentation and logistics support.
Frequently Asked Questions
Aluminum honeycomb panel adhesive — technical answers.
What adhesive bonds aluminum honeycomb panels?
A two-component, solvent-free polyurethane (A : B = 5 : 1). It bonds aluminum honeycomb cores to calcium-silicate board, aluminum / steel sheet and marble / granite, with ≥6 MPa metal-to-metal strength and a non-foaming glue line.
What is the mixing ratio and pot life?
Mix A : B = 5 : 1 by weight with a power mixer and pour immediately. The mixed adhesive has a pot life of about 15 minutes at room temperature, so mix only what you can apply in time.
How is it cured?
Composite and press, then cure at room temperature — or accelerate to 20 minutes at 80°C. Keep parts under press until cured.
Is it solvent-free and low-emission?
Yes — it is ≥99% solids with no benzene or formaldehyde, and complies with the low-flame-spread test procedure.
How much adhesive do I need (coating weight)?
About 300 g/m² single-side, to maximize contact with the honeycomb edges.
Does it foam or attack foam cores?
No — it is non-foaming and does not dissolve polystyrene foam.
What about paper / kraft honeycomb?
For paper honeycomb use our single-component MPU-20 — see the paper honeycomb panel adhesive page.
How should it be stored?
Store at ambient temperature in an indoor warehouse, away from direct sunlight and freezing. Stir settled component A before use.
Do you offer samples, TDS, MOQ and OEM?
Yes. We provide a full TDS, free samples, and OEM / private-label supply with manufacturer-friendly MOQs. Contact us for a quote matched to your panel and line.
Related Adhesives & Guides
Matched polyurethane adhesives for honeycomb and panel builds.