Another trick for strengthening fiberglass tubing is to get wood round stock at Lowes or Home Depot that will just fit inside the tubing. Years ago I found something which was a perfect friction fit, though obviously it depends on the tubing. Cut the wood about 2" shorter than the tubing, and center it leaving a 1" space at each end. I stood the tubing on end, and filled the top with RTV. After it hardened, I reversed the tubing and repeated the process. The result was lighter than a solid fiberglass rod, waterproof, and lasted for 15 years until the whole thing came down in a windstorm.
73s,
Alan WA4SCA
<-----Original Message----- <From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Dave Webb KB1PVH <Sent: Friday, March 25, 2016 5:36 AM <To: AMSAT -BB amsat-bb@amsat.org <Subject: Re: [amsat-bb] Fiberglass Poles for Antenna Mounting? < <Scott, < <I just got fiberglass tubing for my new setup, it's 2" diameter and I put a <1?" inside it to eliminate any flexing. < <http://www.dxengineering.com/search/department/rigid-tubing/brand/dx-enginee... <engineering-fiberglass- <tubing?autoview=SKU&N=4294951163%2B401126&sortby=Default&sortorder=Ascending < <Dave-KB1PVH < <Sent from my Samsung S4 <_______________________________________________ <Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available <to all interested persons worldwide without requiring membership. Opinions expressed <are solely those of the author, and do not reflect the official views of AMSAT-NA. <Not an AMSAT-NA member? Join now to support the amateur satellite program! <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb