[bobinphx]

Question about fiberglass.
how is it applied to the pipe? are we talking about a spiral wrap? or is there a split solid fiberglass sleeve type? what about sealing up the fiberglass. The reason I ask, is that I have seen spiral wrap, but it appears that its has to be wrapped fairly tight, thus compressing the insulation and in my mind losing the efficiency of the fiberglass. I have also seen a round ridged type of fiberglass pipe insulation. The ridged looks like it also gets a coating of mastic and or pain. so again, which are we talking about???
thanks in advance.