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  1. GTwigg

    Specific heat (Cp) for liquid epoxy?

    A good PhD thesis which I often reference for the hard to find thermal properties is: "AN INTEGRATED MODEL OF THE DEVELOPMENT OF PROCESS-INDUCED DEFORMATION IN AUTOCLAVE PROCESSING OF COMPOSITE STRUCTURES", ANDREW A. JOHNSTON, UBC, 1997. His experiements yielded the following: CPr = 2790 J/kgK...
  2. GTwigg

    CNC Foam Model Capabilites in Vancouver BC area.

    We could probably help you out. We're located in Sidney on the Island. www.profilecomposites.com
  3. GTwigg

    Autoclave Cure - To vent or not to vent.

    Excellent post Compositepro. Please do write a book on the subject as I think the events going on inside of the vacuum bag are the most mis-understood (by me at least) keys to making good composite parts. In one of the earlier posts on this thread you stated: "For many resin sytems venting is...
  4. GTwigg

    Ventilation in Composites Trim Area

    We would like to improve the ventilation in a dedicated composites (FRP) machining area. We have a variety of operations which take place in the room including centerless grinding (water bathed), drilling (dry) as well as abrasive cutting and grinding (dry). I'm wondering if anyone has...
  5. GTwigg

    Ventilation for Composites Trim Area

    We would like to improve the ventilation in a dedicated composites machining area. We have a variety of operations which take place in the room including centerless grinding (water bathed), drilling (dry) as well as abrasive cutting and grinding (dry). I'm wondering if anyone has specific...
  6. GTwigg

    Polymer Flame Spray Equipment

    I was wondering who are the main manufacturers of flame spray equipment for polymer coatings. I can find plenty of suppliers for consumables, but very few companies who make the flame spray guns. Thanks in advance.
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