Great Stuff?

[parkinsn]

Thanks. I have 2 colums built with PVC, and an arch connecting the two with larger rubbel zip tied on to it. What im trying to do is fill the gaps and stick rubbel on. The arch has a hole in the middle that im trying to keep there. I might have to foam in the gaps then drill it and use rod and silicone to finish. I cant find my camera charger battery otherwise I would throw up some pics. Hope that makes sense.