Page Comparison

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The viscosity of the resin is important, as it determines how much times is required for the infusion to be completed and how well and even it spreads throughout the material.  The recommended viscosity is at less than 400 centipoise, however higher viscosities can be used, but curing time must be a lot longer to allow for the spreading to occur.  Alternatively, additional time can be allowed instead to allow higher viscosity resins to be used.

The permeability of the material is also important, due to it also determining the efficiency at which the resin and hardener spreads through the material.  The currently selected type of material will be sufficient for this, as the weaved fibres allow for easy spreading of the resin.  However looser weaves are recommended for easier spreading.

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• E-glass Fibre types:
  • http://www.fibreglast.com/product/Style_120_E_Glass_573/Fiberglass_Fabric
    • $10 US per yard * 38” wide
    • Continuous woven, 5micron thick weaves
    • Ca. 125.5 g per m² (3.7 oz per yd²)
    • To break, 93lb/in has to be applied (warp is vertical, fill / weft is horizontal) => 1660.76 kg/m
    • 4 HS weave => warp is above fill after every 4^th
    • Thickness is 0.0042 in = ca. 0.011cm
  • http://www.fibreglast.com/product/Bi_directional_E_Glass_1094/Fiberglass_Fabric
    • $9 US per yard * 38” wide
    • Continuous woven, 9 micron thick weaves (ECG 75 1/0 warp, ECH 25 1/0 fill)
    • Ca. 288.2 g per m² (8.5 oz per yd²)
    • 4H modified twill
    • Thickness is 0.0097in = ca. 0.025 cm
  • http://www.automateddynamics.com/about-us
    • Contact for e-glass fibre glass
  • https://www.rayplex.ca/page90.html
    • • Woven roving fibreglass
  • https://www.aircraftspruce.ca/menus/cm/fiberglass.html
    • Woven roving e-fibreglass
  • http://jushiusa.com/data-page-by-tag/20
    • Woven roving e-fibreglass

Resins + hardeners:

As mentioned before, the viscosity of the resin and hardener is important to consider for the Vacuum Infusion Process.  This means that either the resin has to be lower than 400 centipoise or the hardener used has to be have a higher curing time.

• Physical properties not an issue
• Just have to make sure watertight!
• Otherwise consider fiberglass first
• http://www.fibreglast.com/product/System_2000_Epoxy_Resin_2000/Epoxy_Resins
  • 45,170 psi tensile strength with fibreglass
  • Potlife (time for handling) 1 hour – 2 hours
  • Density: 0.401 lb/in³ = 11099.7 kg/m³
• http://www.fibreglast.com/product/System-1000-Epoxy/Epoxy_Resins
  • 46,168 – 42,784 psi tensile strength
  • Potlife: 11 – 23 minutes
  • Density: ?

Composite contacts:

• Composites Canada (https://www.compositescanada.com/product-catalog/fabrics)
  • Missisauga, Ontario
• Apex Composites (http://www.apexcomposites.com/our-capabilities/process-engineering/)
  • Burlington, Ontario
• Comtek Advanced (http://comtekadvanced.com/)
  • Burlington, Ontario
• Kitchener Fibreglass (http://www.kitchenerfiberglass.com/)
  • Kitchener, Ontario
• Diamond Aircraft (http://www.diamondaircraft.com/)
  • London, Ontario