Pre-Glassed Phenolic Tube VS Full Fiberglass Tube

Mustang67

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Can someone tell me what are the benefits of Pre-Glassed Phenolic Tubes VS Full Fiberglass Tubes?

I would imagine Pre-Glassed Phenolic is heavier than Full Fiberglass, but is Pre-Glassed more durable or stronger than Full Fiberglass?

(Using 6" tubing for both as an example)
 

rharshberger

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Its my understanding tha the reason for glassing phenolic is to offset its brittleness as it tends to crack/break on a hard landing. Full FG tubes would be both stronger and more duable.
 

lawndartman

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Glassed phenolic tubes are lighter than glass tubes. Also folks like to glass their own. Both for cost and skill... I know a Glass Master, next to him I am but 'grasshopper'.
 

Mustang67

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I realized I had some scrap 6" dia pieces of both, one was 12" long and one 15" long. Sent them down 12 wooden steps of stairs to the basement, like a slinky. The Pre-glass cracked and chipped on the edge of the tube. The full fiberglass appears to be fine.
 
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