It also doesn't tear like paper does.
I just use ATG tape and then burnish it down so the adhesive grabs. ATG is like PMA in that it needs to be burnished to make it stick.
If I have to remove it later, it usually shreds instead of peeling off, so the ATG grabs it as well as paper.
I get mine from Frameware. Their website is somewhat messed up right now so it's better to just call them with any order.
I have 3 rolls in the shipping pipeline right now..
Yes, it is more expensive than any paper but, it looks better, and it doesn't tear. As for the expense, just bump your assembly charge by a few dollars.
No one will run screaming from your store because of your prices increased a few dollars more.
One thing to know.. Tyvek comes in different thicknesses. The heavier stuff is usually used for packing and crating and the thinner is used for framing.