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Topic: Heat shrink
Message: Posted by: B Hackler (Oct 21, 2008 11:02AM)
I am wanting some information on how I would be able to heat shrink two zip locks bags together as one? would like to know the tools needed and where I could find them. thanks and god bless.
Message: Posted by: BSutter (Oct 21, 2008 11:21AM)
Heat shrink is usually a tube that is put over wires, heated, and it shrinks to wrap around and protect the wires. I am guessing that you want to join "weld" (2) bags together. If this is the case you might have some success with experimenting with a plastic bag heat sealer. Use the sealer to "weld" the surfaces together.

Message: Posted by: B Hackler (Oct 21, 2008 11:47AM)
Thanks for letting me know. I am wanting to weld a piece of plastic to the inside of a normal plastic zip lock bag. which will make a divider. any suggestions?
Message: Posted by: ClintonMagus (Oct 21, 2008 01:37PM)
I would suggest turning the bag inside out before trying this. If you have access to a Seal-a-Meal or similar sealer for food storage, you might be successful using it.

There is an earlier thread on the Café about making custom inflatables using plastic sheeting. One of the websites referenced there might have some useful information.
Message: Posted by: B Hackler (Oct 21, 2008 08:12PM)
Message: Posted by: Thomas Wayne (Oct 21, 2008 08:47PM)
Don't turn the bag inside out.

Instead, take a second, identical bag and carefully cut it at all four edges so that you have a sheet exactly wide enough and tall enough to fit inside the first bag (just below the "ziplock" edges).

Put the loose sheet inside the bag and position it such that the side and bottom edges fit where they are supposed to. Then heat seal those sides and the bottom edges with the seal function of any Food-Saver vacuum sealer (don't employ the vacuum feature when doing this).

Using an X-acto knife and a straightedge (or sharp scissors and a steady hand) to trim off any excess. You should end up with a slightly undersized bag that will pass limited scrutiny.

Message: Posted by: mrunge (Oct 21, 2008 09:01PM)
In addition to preparing the bags as TW mentions above, I've just used a butane lighter (Bic) and sealed the edges just fine. Just place the baggies in a book with the cut edges of the baggie slightly hanging over the page edges and quickly run the lighter along them. They'll melt together and it works in a pinch.

Mark. :firedevil:
Message: Posted by: B Hackler (Oct 22, 2008 12:01PM)
Thanks for all of the help.
Message: Posted by: magicmarkdaniel (Oct 22, 2008 03:11PM)
If you don't have access to a heat sealer, try your nearest butchers shop. They're sure to have one. I worked in a butchers as a teenager, the whole world fell apart when ours broke! They're a pretty essential item to any butcher.