\nIt appears, at least to me, that the questioner wishes for a list of elastomers that are either solvent-resistant, age-resistant (whatever that means) or both.…\n.
\nHe presents these elastomers:\n.
\nnatural rubber \nstyrene-butadiene polymers (actually "styrene-butadiene-styrene" modified bitumen) \nnitrile rubber \nbutyl rubber \nneoprene \npolysulfide rubber \nsilicone \npolyurethane \n.
\nI'm not sure what he's asking. Is he just doing "research," or is he actually attempting to build something? Anyway, here's what I know:\n.
\nNatural rubber isn't resistant to anything. And these days, you really won't find unalloyed natural rubber unless it's in a condom; they like to cut it with polyurethane to make it more durable. \n.
\nSBS modified bitumen, and its cousin atactic polypropylene modified bitumen, are used in roofing. They are very age-resistant (because you don't want to go back up on the roof every year) but as for solvents? Not sure.\n.
\nNeoprene is another good stable rubber. It will work well for you.\n.
\nNot sure what polysulfide is, sorry.\n.
\nSilicones and polyurethanes are both very chemical-proof and highly age-resistant. Polyurethane is a better product, in that the adhesive characteristics are many times better, but it's more expensive.\n.
\nHope this helps.\n.
\n Answer \n.
\nYou are going to have to break it down a little. If you are asking are any of these "natural rubber" the answer is no. if you want to know about the polymers, be a little more specific and what you are using it for. Also age resistant is relevent. Mose epdm's will bloom in a year or less but it doesn't hurt the hose. Chemavic's on the other hand don't have that, they are used more for gas and chemical applications. If you break your question down into a list and your application I can probably help you better.\n.
\nI don't understand your question o_O (MORE)