I want to make an arch out of 3\4 p v c. It will stay outside for serveral
years and be exposed to all of natures elements. What if anything can I tre
at it with to keep it from getting brittle and cracking? It will eventually
be partialy covered with climbing vines. Thanks for any reply Herb
On Thu, 25 Jun 2015 13:38:01 -0700 (PDT), herb white
The PVC will get brittle but it is not going to crumble to dust. There
are PVC arbors around here that have been in the Florida sun for 20
years or more. As long as you are not trying to bend it, you will be
If you used the gray "electrical" PVC it will be OK for decades.
Like the others have said a coat or two of paint will reduce the UV
I hadn't thought about painting our pvc arch we installed in our
garden. We zip tied 1x2 inch cage wire overlapping the ends to our
pvc arch. I had wondered if that would be enough reinforcement to
strengthen the pvc. It's too late to paint the pvc now, though.
I'd say that if you start out with UV-reistant pipe and fittings (PVC-UVR)
in the beginning you should be home free. If you can't find the proper
stuff locally, try for outdoor-rated PVC conduit which will certainly stand
up for decades and is much more easily identified as outdoor material by
its grey color. Paint whatever you choose with a plastic-rated spray to
achieve your desired color.
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