LOL ya test solvents first indeed.
Although this is touted as a PP material, it could be a blend of mostly PP with something else for all i know.
If it is truly near pure PP, i'm not too concerned about the use of acetone, alcohols and some hydrocarbons (often used as solvents in most glues).
I'll see if i can find a MSDS on this material. Offhand i would say it also fits into the elastomer materials group. I'm glad to see it specifically states it is suitable for poly and speaker applications. A contender for sure!
As for Parts Express, they use UPS and have a not completely clear brokerage charge for Cdn shipments.
I don't trust UPS any further than i could throw the company.
