It seems like most of the plastic/vinyl things I've seen that are sewn are then taped with some kind of waterproof tape over the seams to make them truly waterproof. Otherwise you're bound to get a little leakage through the holes.

Also if you don't have a silicone foot for your machine you may have trouble getting the vinyl to feed through.

HTH!
Tanya

I recommend you use a teflon foot also.

Thanks for the ideas.

Looks like maybe a combination of sewing and gluing more vinyl over the seems may be in order. It's only an old shower curtain, that's not much to lose if it doesn't work out.

Ooh, I forgot about the presser foot and don't have a teflon or silicone foot, but do have a roller foot that says it can be used for vinyls- who knows if it will really work though.

Thanks again.

Vickie

You can use tissue paper under the vinyl to prevent sticking on the under side as it goes through the machine. You'll want to use a longer than usual stitch as you don't want closely spaced holes which just makes a perforated line that tears. For the same reason, you want to avoid restitching a seam if possible. I've done it(not on anything that was to be waterproof however) and not had a problem but it is something to keep in mind.

Teflon... yes teflon... I goofed on the silicone, same idea I guess sorry!

Tanya