PROBOND ClassicX21® is a great intermediate panel for all types of general signage applications. Available in a wide range of sizes with a 0.21mm skin thickness, the PROBOND ClassicX21® range is the ideal choice for every day panel requirements for sign-makers.

It is suitable for CNC routing and folding and comes with clear protection film for quick and easy colour identification.

  • ISO9001
  • HenkelAdhesives
  • PPGIndustries
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Technical information

Panel Properties

Panel Thickness (mm)3mm
Skin Thickness (mm)0.21mm
Weight (kg/m2)4.25 kg
Sound Absorption0.05
Sound Attenuation24
Water Absorption % by Volume0.01
Thermal Performance R Values0.008
Core CompositionLDPE
Tensile Strength of Aluminium Layers32MPa

Dimensional Tolerances

Panel Thickness (mm)3 mm
Width (mm)-0 +2 (+/- 0.2)
Length (mm)-0 +3 (+/- 0.2)
Diagonal-0 +5 (+/- 0.2)
Thermal Expansion2.4mm/m @100°C temp difference
Aluminium Thickness0.21 mm

Surface Properties

Paint Thickness (microns)18±1μm
Pencil Hardness2H
Toughness of Coating≤2T
Temperature Resistance-50℃ -80℃
Impact Strength (kg/CM2)30kg/cm2. No crack
Boiling Water ResistanceBoiling for 2hrs without change
Acid ResistanceImmerse surface with 2%HCL(v/v) for 24H without change
Alkali ResistanceImmerse surface with 2%NaOH(m/m) for 24H without change
Oil ResistanceImmerse surface with 20# engine oil for 24H without change
Solvent ResistanceClean 100 times with Methyl Ethyl Ketone (MEK) without change
Peel Strength5.5 N/mm

Size & Colour Availabilities

Gloss White
Matt White
Gloss Jet Black

Product downloads

PROBOND ClassicX21 Overview
Product Overview

PROBOND ClassicX21® is a great intermediate panel for all types of general signage applications

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Technical Data

Technical Data and Properties of PROBOND ClassicX21®

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PROBOND ClassicX21® Size Availabilities

Panel colours and size availabilities

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Material Safety Data Sheet for PROBOND ClassicX21®

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Your guide to processing PROBOND ClassicX21®

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Typical Specification

Specify PROBOND ClassicX21®

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PROBOND Warranty Statement - ClassicX21-X30
Warranty Statement

Warranty Statement PROBOND ClassicX21®

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