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GRP sign-board paneling profile
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The GRP sign paneling profile is used to build the panel of the information signs that guide traffic on the road network. Profiles 20, 30 and 60 cm high join one above the other with a tongue-and-groove joint; the required sign size is built from these profiles and the reflective sheeting is bonded on top. GRP resists corrosion and is used with confidence where temperature swings are large; being light, it is easy to transport and install.
- Corrosion-resistant GRP
- Tongue-and-groove profile
| Profile height | 20 · 30 · 60 cm |
|---|---|
| Sign face | Reflective sheeting is bonded on top |
Key features
- Corrosion-resistantThe catalogue describes GRP corrosion resistance; product and reflective-sheeting reports are verified for the project scope
- Handles temperature swingsUsed with confidence where temperature swings are large
- Interlocking profile20, 30 and 60 cm profiles join one above the other by tongue and groove
- Flat sign faceThe reflective sheeting is bonded to the flat front of the profile
- Mounting channels at the backTwo channels on the 30 cm profile, at 75 and 225 mm
- EN 13706-3 gradeE23 and E17 values in the grade-minimum values table
- LightweightEasy to transport and install
Technical summary
Profile
| Profile height | 20 · 30 · 60 cm |
|---|---|
| 30 cm profile section | 300 mm module (305.5 mm with the tongue), 19 mm deep |
| Joint | Tongue and groove, profiles stacked one above the other |
| Back face | Mounting channels; on the 30 cm profile at 75 · 150 · 75 mm |
| Sign face | Reflective sheeting is bonded on top |
Section and foundation
Testing
| Test | Standard | Value | Test condition |
|---|---|---|---|
| Modulus of elasticity | EN 13706-2 Annex D | E23: 23 GPa · E17: 17 GPa | Modulus of the profile grade |
| Tensile modulus, lengthwise / crosswise | EN ISO 527-4 | E23: 23 / 7 GPa · E17: 17 / 5 GPa | On a sample cut from the profile |
| Tensile strength, lengthwise / crosswise | EN ISO 527-4 | E23: 240 / 50 MPa · E17: 170 / 30 MPa | On a sample cut from the profile |
| Pin-bearing strength, lengthwise / crosswise | EN 13706-2 Annex E | E23: 150 / 70 MPa · E17: 90 / 50 MPa | Bearing strength around a hole |
| Flexural strength, lengthwise / crosswise | EN ISO 14125 | E23: 240 / 100 MPa · E17: 170 / 70 MPa | Three-point bending |
| Interlaminar shear strength | EN ISO 14130 | E23: 25 MPa · E17: 15 MPa | Short-beam test, lengthwise |
These are the EN 13706-3 E23 and E17 grade minimum values listed in the catalogue.
Installation
Installation sequence
- Step 1The sign height is made up from the number of profiles; profiles are stacked from the bottom up by tongue and groove.
- Step 2The reflective sheeting is bonded to the flat front face.
- Step 3The panel is fixed to the support post or gantry beam through the mounting channels at the back.
Maintenance and cleaning
- Keep the sign face legible; clean dirty reflective sheeting according to its manufacturer's instructions without damaging the edges.
- Check profile joints and rear mounting channels for cracks or separation; assess any looseness in panel and support connections.
- Assess damaged profiles together with blistered or lifting sheeting; verify that replacement parts match the existing section and sheeting.
Where it is used
- Motorway direction signGreen background, on two posts at the roadside
- State road direction signBlue-background direction and information signs
- Gantry signAbove the lanes, fixed to the gantry beam
Downloads
Downloads
The files are free and download without registration.
Standard reference
- EN 13706-3
- EN 13706-2
- EN ISO 527-4
- EN ISO 14125
- EN ISO 14130
EN 13706 is the specification for pultruded profiles: part 2 gives the test methods, part 3 the grade requirements. The grade-minimum values table lists the minimum values of the profile material in grades E23 and E17.
The complete sign — with its sheeting and support — is assessed separately against the authority’s sign specification; the profile alone does not carry that declaration.
Frequently asked
How is the sign size made up?
The sign panel is built from profiles 20, 30 and 60 cm high. The profiles join one above the other by tongue and groove; the required sign height is reached with the number of profiles. The 30 cm profile has a 300 mm module height, 305.5 mm overall with the tongue at the bottom.
Where is the reflective sheeting applied?
The reflective sheeting is bonded to the flat front face of the profile; the mounting channels are on the back. The class and colour of the sheeting come from the authority’s specification for the sign’s location.
What do E23 and E17 mean?
E23 and E17 are grades for pultruded profiles in EN 13706-3; the number is the minimum lengthwise modulus in GPa. The grade-minimum values table gives tensile, flexural, pin-bearing and interlaminar shear values for both grades.
How is the panel fixed to its support?
The panel is fixed to the support post or gantry beam through the mounting channels on the back of the profiles. The 30 cm profile has two channels, 75 and 225 mm above its lower edge.
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