Composite Pipe Repair

[Gray E Fowler]

Ed

I was the person who change the subject of the original post, because in 
no way was I trying to single out any supplier, my comments were in 
general as there are several composite pipe suppliers on the market, and 
in my locale about half fail at the inlet tube due to high temperature. 
Bolly got my kudos simply because they do not sand the outside of the 
pipe, and I have never seen a burned out Bolly pipe, granted only about 10 
that I have seen. And as far as the sanding goes, I think I was pretty 
accurate in describing where that requirement came from, and I still 
disagree with the practice on such a thin structure, but as you have 
stated, to sell pipes it is a requirement.
I have never owned one of your pipes, but what I have seen has always been 
very light weight, excellent appearance (for what its worth), and good 
engine performance. I also know that more than 2% of the people that I 
know use your pipe in my area experience failure at the inlet, because 
somehow word gets around and they bring it to me to see if I can fix it. 
My point of the whole post was to attempt to educate people as to the 
difficulties of making a pipe that is affordable, looks good cuz it soooo 
important, is lightweight and durable. If your pipes had one flaw it was 
durability when

1. The header was not just right.
2. The operator had a lean run
3. One of those in combination with a hot day-no cooling.

By switching to a higher temp resin and process you obviously made a move 
in the right direction, and fixed the one weakness, however small, of your 
pipes. In my opinion, nothing I posted was incorrect nor misleading, 
simply my observations of the composite pipes in general.



Gray Fowler
Principal Chemical Engineer
Composites Engineering
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