100 pcs Aluminum Crimp Cap. The caps of the crimp vial are packed with septa, each with 100 pieces. The cap is made of aluminum for crimping and sealing; plastic (polyethylene, polypropylene or phenolic resin) for non-crimpin Rated 4.6 /5 based on 308 customer reviews. 11mm crimp vial 2ml crimp vial crmp top vial. Free Sample Get Price.