Reinforcing a thin porcelain face makes it more resistant to bending and breakage during handling, fabrication and installation. Funtek’s product literature gives approximately 600 N for a bare 3 mm slab and 4,617 N after PU honeycomb reinforcement. The thin ceramic remains the decorative face while the backing supplies the reinforced structure behind it.
A separate comparison in the product literature describes an eleven-fold improvement in bending performance and breaking strength. The dry-test table below records flexural strength of 12.0 MPa with the ceramic face downward and 20.5 MPa with the face upward. Together with the impact results, these measurements explain how the reinforced assembly performs under different loading conditions.
Porcelain Honeycomb Panel Breaking Load: 4617 N
Thin porcelain reduces the amount of ceramic needed for a large decorative surface, but thin sheets are vulnerable to bending during movement and positioning. Bonding the face to PU fiberglass-faced aluminum honeycomb changes the load-bearing assembly. In the product example, the breaking load rises from approximately 600 N for the bare 3 mm face to 4,617 N for the reinforced composite.
The 4617 N breaking load is a force value. It identifies the load reached by the tested configuration at failure. A newton value does not describe the panel area, support layout or connection arrangement on its own. Those details determine how a force acts on a specimen and how the finished panel is supported.
This is why a panel breaking-load entry and a rear connector pull-out entry remain separate. The first tests the panel under its loading arrangement; the second tests the connection through which a particular fixing transfers force. The porcelain honeycomb panel installation and fixing details explain the embedded and riveted connections and their own test records.
If you are deciding whether to use a reinforced panel or the thin face material alone, the comparison of porcelain honeycomb panels and unbacked porcelain slabs covers the complete material and supply choice.
What the Backing Changes in Bending
The aluminum honeycomb core sits between two thin PU fiberglass skins. An adhesive layer bonds the ceramic face to the upper reinforced skin. The ceramic face, skins, core and bonds therefore respond as one composite when the panel is bent. The core keeps the reinforced skins separated through the depth of the backing without filling that depth with solid material.
The skins and core have different jobs. The skins carry forces along the panel surfaces, while the core links them through the panel depth and supports their separation. Bonding keeps the layers working together. The five-part panel construction and backing explanation identifies the materials in their actual front-to-rear order.
Three measurements describe different parts of this response:
- Breaking load, in N: the force reached at failure in the particular test arrangement.
- Flexural strength, in MPa: the bending stress reported from the test and its specimen geometry. One MPa equals one newton per square millimeter.
- Elastic modulus, in GPa: the relationship between stress and elastic strain used to describe stiffness. It answers how the specimen responds before failure, rather than naming its breaking force.
Compare the same measured property and unit. A 4617 N breaking load, a 20.5 MPa flexural strength and a 9.1 GPa elastic modulus describe different aspects of the panel.
A bending result is influenced by the complete specimen and loading arrangement. ASTM's sandwich beam-flexure method overview identifies facing, core, adhesive, specimen geometry and conditioning as variables in sandwich tests. The product results below retain their own recorded GB/T 29059-2012 references.
More Bending Resistance with a Small Weight Addition
The product’s thin-face reinforcement example adds approximately 2 kg/m² while providing the reported increase in bending and breaking performance. The open cellular core separates the reinforced skins without filling the backing depth with solid ceramic or metal. This gives the assembly a high rigidity-to-weight ratio and keeps the ceramic face thin.
That combination addresses the practical difficulties described in the product literature: a fragile sheet is harder to transfer, process and align at the installation position. The backing supports the face as part of a complete panel through those operations. It also provides the rear surface for the specified fittings. The complete-panel weight guide gives finished wall-panel weights; fabrication and edge details explain how the reinforced panel is prepared for its final shape.
Flexural Strength, Elastic Modulus and Face Orientation
The dry test table records two orientations because the panel has ceramic on one side. Turning the specimen over changes which material is on each surface during bending. The face-up and face-down entries must stay attached to their values when results are copied into a schedule or compared with another panel.
When a specimen rests on two supports and is pressed down between them, its upper surface shortens while its lower surface stretches. Turning this single-sided panel over moves the ceramic between those compression and tension sides. The ceramic face and reinforced backing have different material responses, so keeping the direction with the result describes a real change in the test.
In the recorded dry tests, flexural strength is 12.0 MPa face down and 20.5 MPa face up. Elastic modulus is 9.1 GPa face down and 7.9 GPa face up. The orientation with the higher failure stress is therefore different from the orientation with the higher reported elastic modulus. That difference is meaningful: resistance to failure and elastic stiffness are separate properties.
Swipe horizontally to compare. Select a specimen photo to enlarge it.
| Property and orientation | Specimen orientation | Technical criterion | Recorded result |
|---|---|---|---|
| Flexural strength Ceramic face down |
 |
7.0 MPa |
12.0 MPa July 8, 2024 |
| Flexural strength Ceramic face up |
 |
18.0 MPa |
20.5 MPa July 8, 2024 |
| Elastic modulus Ceramic face down |
|
1.5 GPa |
9.1 GPa August 9, 2024 |
| Elastic modulus Ceramic face up |
|
3.0 GPa |
7.9 GPa August 9, 2024 |
The flexural entries identify NCCS as the testing body and list GB/T 29059-2012 in the source table. The elastic-modulus entries identify SGS and reference GB/T 29059-2012, Section 7.6.1 and Appendix A. Values in the criterion column are the listed comparison requirements; the result column contains the measured product values.
Keep specimen geometry with the result
Thickness changes the cross-section being tested. Record the ceramic face, complete backing and total specimen dimensions separately. The nominal 3 + 9 mm example means a 3 mm ceramic face plus a 9 mm backing that includes both reinforced skins and its honeycomb core. It does not mean a 9 mm bare core with two additional, unspecified facing sheets.
The panel thickness, sizes and weight article gives the available build-ups and explains how to calculate the finished piece weight. Use that configuration description alongside the relevant mechanical data, so two panels are compared on the same basis.
Two Separate Drop-Ball Impact Conditions
The product material contains two impact entries. One describes a 450 g steel ball dropped vertically from 1.5 m onto a 3 + 9 mm composite, with no fracture. The other is a 300 mm drop-ball item in the physical-performance table, recorded as conforming to its stated surface-damage criteria. The standard explanation identifies a smooth steel ball of 1.0 ± 0.1 kg for that item.
Mass and drop height are both needed to describe an impact. Keeping only the height leaves out the striking object; keeping only the ball weight leaves out the drop condition. The specimen build-up and support are also part of the test description. Preserve the complete recorded condition instead of combining the two entries into a single impact rating.
Swipe horizontally to compare. Select a setup diagram to enlarge it.
| Test input or result | 450 g / 1.5 m entry | 300 mm standard entry |
|---|---|---|
| Recorded setup |  |
 |
| Steel ball mass | 450 g | 1.0 ± 0.1 kg |
| Vertical drop height | 1.5 m | 300 mm |
| Specimen or entry | 3 mm ceramic face + 9 mm PU fiberglass-faced honeycomb backing | Drop-ball item in the physical-performance table |
| Recorded outcome | No fracture | Conforms: no cracks, indentations or chipped corners |
| Source reference | Product technical features; mechanical performance in the English technical guide | GB/T 29059-2012, Section 7.6.3 and Appendices A and C; NCCS; July 8, 2024 |
Write the ball mass, drop height, panel construction and observed damage criterion together. These four details make a porcelain honeycomb panel impact-resistance entry useful to the next person reading it.
The no-fracture statement describes the recorded drop condition. Repeated impacts, edge strikes and different supports are different test questions. If a project calls for one of those conditions, carry that requirement into the test request and panel specification.
Watch: Honeycomb-backed panel and porcelain slab ball-drop comparison
The 450 g ball dropped from 1.5 m without fracture on the documented 3 + 9 mm panel illustrates the benefit of supporting the thin ceramic with the composite backing. Together with the bending result, it explains why the product is supplied as a reinforced panel for transport, processing and placement. The separate 300 mm drop test retains its own specimen and acceptance conditions in the table above.
Use the Results for the Complete Panel and Its Fixings
Small-specimen data explains the tested composite response. A complete wall panel also has a length, width, rear connection layout and support arrangement. The same material assembled at a different size or supported at different points changes how loads act across the installed panel.
During handling, support the panel with equipment and contact positions appropriate to its dimensions and mass. Keep corners and exposed edges protected. A strong composite backing does not remove the need to control local contact at an edge or a cutout. The recorded impact tests describe their specified impacts; they do not describe every possible handling event.
Use the receiving, handling and storage workflow to inspect the face, composite edges and rear fittings before installation. It connects the finished-panel mass to supported movement and a traceable handover.
For mechanical installation, distinguish panel response from connection response. The ceramic face stays at the front, and the corresponding rear fittings connect through the backing. A face-up test result is not an instruction to reverse the panel's installed orientation.
Connection selection and layout use the M8 embedded-insert and interior riveted-clip details. Temperature, water and freeze-thaw effects on the composite bond are covered in the bond-strength and durability tests. These related results answer different questions about the finished assembly.
Write a Condition-Specific Mechanical Specification
A useful specification names the tested property and its condition in one place. For example: dry flexural strength, ceramic face upward, 20.5 MPa, test entry dated July 8, 2024. A second line can record the face-down value. Keeping the entries separate preserves the comparison the original table makes.
For a project review, put the following beside the property value:
- Panel identity: ceramic-face thickness, backing construction and complete specimen dimensions.
- Measured property: breaking load, flexural strength, elastic modulus or impact outcome, with the matching unit.
- Test condition: dry or conditioned state, ceramic face direction, and the relevant loading or impact arrangement.
- Reference: test method, testing body, date and the corresponding document or report entry.
- Project arrangement: finished panel size, intended application and the proposed rear support or fixing detail.
This gives a supplier or technical reviewer enough context to match the requested panel to the relevant result. If you already have an intended size and application, request the matching panel specifications and quotation information. The porcelain honeycomb panels product page brings the available configurations, technical downloads and project enquiry together.
Technical Guide and Mechanical Test References
The English technical guide brings the mechanical figures together on page 4 and lists the technical references on page 10. Keep the recorded dry-test orientation and the separate impact conditions with the selected figure when using the data.
Porcelain Honeycomb Panels Technical GuideDownload PDF ↗
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