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GRP Tubes are suitable for any structural project. Our fiberglass tube is available in various sizes, lengths, colours and resins depending upon the application.
All our fiberglass tubes are made from glass reinforced isophthalic polyester resin with a polyester surface veil. This combination gives excellent corrosion resistance and weatherability at an economic cost. Profiles in other resin systems are available to order. The standard BS EN 13706 Specification for pultruded profiles defines two grades of structural profiles. All Captrad's structural profiles with a wall thickness of over 5mm thick meet the higher performance E23 grade while those at 3-5mm wall meets the E17 grade.
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Tubes -
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kg/mtr
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7.9/3.3mm (B)
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0.08
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9.5/3mm (B)
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0.10
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12.7/4mm (B)
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0.20
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19/12.6mm (W & G)
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0.29
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22/17mm (W)
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0.28
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25/20m (G)
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0.33
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31/25mm (G&Y)
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0.51
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38/32mm (G&Y)
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0.62
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48.3/35mm @ 5m ( R )
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1.60
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51.6/46.5mm (G)
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0.72
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58/54mm (Y)
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0.63
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The following sizes are available in composite tubes but are non standard and will require a minimum order quantity
Fiberglass Tubes - Technical data
The following data is given for guidance in materials selection for grp tubes. Please contact us for more specific design data for individual products.
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Property
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Units
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Data
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Tensile strength
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MPa
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170
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Tensile Modulus
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GPa
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17
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Flexural Strength
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MPa
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170
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Density
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G/cc
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1.8
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Electrical strength
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KV/mm
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10
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Thermal conductivity
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W/m.K
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0.35
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Water absorption
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% wt/wt
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0.2%
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