Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
Mylar flip heat sealing?
>
Reply to Thread
Message:
<p>[QUOTE="John Burgess, post: 6591507, member: 105098"]Mylar has a melting point of 482 degrees F (250 C) and you'd need to be sure the flip is infact mylar, and not a generic PET (PET has a melting point of 500 F/250C) as far as my understanding of this goes, and the 7 mil thickness of the mylar flips, the optimum temp setting needs to be somewhere between 375 F and 425 F depending on elevation/altitude, with PET needing another 18 F degrees added to these ranges for an optimal fusing. in this range is where the "dialing it in" happens to find the optimal temp for the result you want. </p><p>I don't think 90C-160C gets you quite there (194F-320F) and it won't actually fuse.</p><p><br /></p><p>I'm sure I've gone way overboard here <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>just saying you don't want melting, but you want hot enough to actually fuse strongly. and the material matters as well as the machine used to seal it.</p><p><br /></p><p>Another thing to keep in mind, TRUE mylar or PET "archival quality" with no additives or coatings like UV blocker, can't be conventionally heat sealed.</p><p>The fusing won't stick well, and if you crank up the temp it will cut, melt or burn instead of seal. it requires an RF sealer to fuse it solidly and cleanly.[/QUOTE]</p><p><br /></p>
[QUOTE="John Burgess, post: 6591507, member: 105098"]Mylar has a melting point of 482 degrees F (250 C) and you'd need to be sure the flip is infact mylar, and not a generic PET (PET has a melting point of 500 F/250C) as far as my understanding of this goes, and the 7 mil thickness of the mylar flips, the optimum temp setting needs to be somewhere between 375 F and 425 F depending on elevation/altitude, with PET needing another 18 F degrees added to these ranges for an optimal fusing. in this range is where the "dialing it in" happens to find the optimal temp for the result you want. I don't think 90C-160C gets you quite there (194F-320F) and it won't actually fuse. I'm sure I've gone way overboard here :) just saying you don't want melting, but you want hot enough to actually fuse strongly. and the material matters as well as the machine used to seal it. Another thing to keep in mind, TRUE mylar or PET "archival quality" with no additives or coatings like UV blocker, can't be conventionally heat sealed. The fusing won't stick well, and if you crank up the temp it will cut, melt or burn instead of seal. it requires an RF sealer to fuse it solidly and cleanly.[/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
Mylar flip heat sealing?
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...