Yes the original Parlon has been long gone for years. From what Mike Beyer
once told me, it had been named for the location where it was made in Parlin
You can sure tell the difference with your nose. I always thought the smell of
Parlon was pretty pleasant, but not so with Chlorub. Chlorub is also yellowish
in comparison to Parlon. I still have some of of a Japanese product called
Superchlon. There was also an English equivalent which I think they called
Alloprene. I tried to get a bag of Chlorub recently and the supplier was
temporarily out of stock. He offered to substitute an unknown Italian product,
but they said it was apparently somewhat gritty in comparison so I turned it
"Old Dog" <***@atlantic.net>
Just to add to the confusion, AFAIK there really is no new Parlon around
the manufacturer quit making it some time back. What is sold as "Parlon" now is
"Chlor-Rub" or some other brand of chlorinated rubber - a similar but probably
not identical material to the real Parlon.
Post by PyroLeo
As chlorine donors go, PVC is not one of the better choices in my own personal
opinion. However it seems to have it's fans, so I finally stocked up on some
of it recently.
Saran contains a higher percentage of chlorine. However there are more
considerations than just that, since Parlon often acts as a fuel and even a
binder in some formulas. From the binder aspect, Rich reported that he found
there is more than one type of Saran being sold and not all of them are
soluble. The temperature range which the formula functions at can affect your
choice also. It's always been my impression that Parlon was used mostly in
high-temperature mag formulas and PVC was for cooler-burning formulas like
blues. However Paxton claimed Shimizu touts PVC for high temperature formulas.
Basically this question has been asked and answered so many times and in so
many ways that you just need to read all the replies and form your own
conscencus. I'm sure you won't want to hear this, but there are answers to
years of questions just like yours waiting at google.com/groups. I searched
rec.pyrotechnics there for "Parlon Substitute" and it found 148 threads.
In short nothing is stopping you from substituting some amount of pretty much
any chlorine donor for any other chlorine donor. It's not going to be a direct
one-to-one substitution though, and the results will most likely not be as
good. If someone has taken the time to experiment with a formula they've
subsequently published, they've probably already determined what ingredients
worked best in it. If they had an aversion to trying a particular chlorine
donor and your substitute ends up working better, then you've accomplished
something they missed.
In star comps such as the ones at: http://www.unitednuclear.com/star.htm
Probably not but I would like to know as all I have is PVC atm.