Adding resealability to an aluminum can is the patented Cap Can from Dayton Systems Group (Miamisburg, OH). More economical in cans from 16 oz and up, the new can end in 206 and 209 sizes (300 size to come) has a threaded dome with a removable lug cap. Preliminary market tests have already been done, and an unidentified user will have product on the market by early this year.
Cans will accept CSDs or hot-filled products. Requires little investment by canmaker; only end seamer may need modification.