What differences do you guys notice between different plastics in pipe stems? I know there are some differences in their resistance to oxidation, but are there any other advantages?
I have pipes with both, Acrylic stays shiny but dents easier. Vulcanite doesn't stay shiny without a lot of attention. I don't prefer one over the other. Estate pipes most often come with dulled finish that require cleaning with a buffer and 2 grades of compound.
I'm a clencher. Vulcanite is more comfortable, but acrylic doesn't seem to be as prone to bite-through, and requires a lot less maintenance. Pipe material is usually pretty low on my priority list when choosing a pipe, but all other things equal I usually lean towards acrylic (I don't use softie bits, but if the comfort was THAT much of a factor, I could always try to improve the feel by going that route).
I tend to agree with @jfreedy there are positives and negatives to both. The major negative is the discoloration aspect. A lot more maintenance to keep the from yellowing. And a whole lot more work if it's an Estate pipe. I don't have a proper buffing wheel and do everything by hand so I never get the proper sheen in a vulcanite Estate pipe no matter how much I hand buff it.
@ghostsofpompeii & @motie2 -- totally agree with both of you. If I had to choose I'd choose acrylic because they make my life easier. That said, there is something pretty satisfying about restoring a stem to its original glory... especially with older estate pipes.
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I have pipes with both, Acrylic stays shiny but dents easier. Vulcanite doesn't stay shiny without a lot of attention. I don't prefer one over the other. Estate pipes most often come with dulled finish that require cleaning with a buffer and 2 grades of compound.