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Ampelite Industrial Fibreglass


Ampelite Industrial Fibreglass

Ampelite’s Industrial Fibreglass has set the standard for Industrial skylights in Australia for many years. It provides cost effective lighting through excellent spanning, light transmission and low thermal expansion.

More recently, Ampelite have developed Wonderglas GC, which provides all of the physical properties of standard Industrial Fibreglass, with ultimate durability through Ampelite’s unique Gel Coat Technology. For more information on Wonderglas GC and Ampelite’s Gel Coat Technology.


All current profiles (see link below) such as Corrugated, Trimdek (5-Rib), Speed-dek, etc. plus most superseded profiles are available. Click here to view profiles.


Ampelite industrial & premium grade industrial fibreglass is manufactured to AS/NZS 4256.3: 1994, Licence No.986. Ampelite are an AS/NZS ISO 9001 QEC.

N.B. Standard grade is surface protected with Melinex polyester film.

Hail Resistance

Ampelite warrant series 2400 (and upwards) standard grade industrial fibreglass sheeting against damage from hail up to 20mm in diameter accompanied by winds up to 100 km/hr for 5 years. Premium grade gel coated sheeting is covered for 10 years.

Spanning Capacity

Industrial Standard and Premium Grades
Series 2400 3050 3660 4270 4880
Nominal Thickness 1.4mm 1.75mm 2.1mm 2.45mm 2.8mm
Corrugated 1200mm 1500mm 1700mm - -
5 Rib 1500mm 1700mm 2000mm 2300mm -
Spandek 1600mm 2000mm 2300mm 2600mm 2800mm
Kliplok 406 1400mm 1700mm 2000mm 2300mm 2600mm
Kliplok 700 1400mm 1700mm 2000mm 2300mm 2600mm
Speed-dek 1400mm 1700mm 2000mm 2300mm 2600mm
LT7 1700mm 2100mm 2400mm 2600mm 2800mm

The above spans are recommended for wind loads up to 1.0 kPa.

For information regarding recommended spans in high wind and cyclonic regions please contact your local Ampelite office.

Sheeting Grades

Series Weight (Kg/m2)
2400 2.4
3050 3.05
3660 3.66
4270 4.27
4880 4.88

Important: Heavier grades give the specifier the option to use Ampelite sheeting in cyclonic zones, or match the span of the nominated steel roofing material (see 'Spanning Capacity').

Light and Heat Transmission

Series 2400
  Light % Heat %
Ice Clear 70 68
Opal (white) 68 64

For Light and Heat transmission of other series (grades), please contact your local Ampelite office. Other colours can be produced to order for viable quantities.

Expansion Data

Materials Expansion Comparison.  0° to 40° Temperature Variation.  Sheet Length 6 metres

  Fibreglass Polycarbonate Steel Aluminium
Thermal Expansion 7.2mm 16.2mm 2.9mm 5.8mm
Thermal Co-efficient 3.0 x 10-5 cm/cm°C 6.75 x 10-5 cm/cm°C 1.2 x 10-5 cm/cm°C 2.4 x 10-5 cm/cm°C

Physical Properties

Tensile Strength  80 MPa
Impact Strength   8 Joules
Shear Strength  90 MPa
Modulus of Elasticity 5500 MPa
Compressive Strength 135 MPa
Flexural Strength 150 MPa
Specific Gravity 1.45
Thermal Expansion 3.0 x 10-5 cm/°C
Thermal Conductivity 0.158 watt/m°C
Water Absorption .2% in 24hrs./26°C
Curved Roof Radius 2400g/m2 "Corrugated" and "5-Rib" 
Minimum Radius 4.0 Metres
Recommended Service Temperature Range -20° to +96°C

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