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Best Plastics, Composites, Rubber for structural antenna parts

90320 Views 212 Replies 43 Participants Last post by  300ohm
Just a warning note about using ABS for structural parts that I've mentioned many times before - hopefully what you're planning to use is the thick walled stuff that has little or no flex. If you go to Rona or Lowe's or Home Depot and shake a 10 foot ABS pipe like a sword it flexes a lot. ;) It seems to be rigid, but its not. If you shake a length of PVC like that it will seem like a wet noodle, so avoid using PVC for structural use either, except when recommended in build plans.

From experience I'm clarifying that ABS should never be used as a pole or mast, and it should be carefully considered if you're thinking of using it as a horizontal boom of any length more than a meter or a few feet.
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FYI: Electrical Properties of Carbon Fibre Materials in fol. U.K. Report:
Carbon Rods they tested were fairly conductive....but actual "Conductivity" was very poor...much worse than Stainless Steel....but we've also seen claims that Carbon Fibre is "transparent" to Radar it would still be interesting to see a report on how effective it would be as TV antenna elements....

So what is the End-to-End Resistance measurement for a Carbon Fibre Arrow Shaft (please provide dimensions, incl. diameter)??? [VOM or Milliohm capable DVM should do the job....if your meter has it, also try Transconductance function.]
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