Sealed Saflips

Thanke Appleangel, saw your comment in another thread.

A little while ago, I purchased some coins from a Forum member, and they arrived in a sealed saflip! I thought to myself "what a blxxdy good idea! So now my mind has been twigged afresh, can someone please provide some more info.

Bascially, questions are as follows:

1)is the a special machine used to seal them, or can I just use something like the heat element on my food vacuum food saver thingy?

2)Is there a particular brand of saflip you can use, or is it a specialised item? Or can you use any brand?

3)Can you buy "raw sheets" of material? ie, just sheets without any pockets already made up?, so that you can form pockets to the size you like?

Any information would be most useful, TIA