What is the heat resistance of Archival DuraLar?

Stack of high clarity optical film sheets

What is the heat resistance of Archival DuraLar™? Archival DuraLar will begin to soften at about 150C/300F. When DuraLar softens, it begins to lose its orientation; it gets wavy and begins to shrink. So if your film will only be exposed to a heat environment below 150C/300F, archvial DuraLar is a good choice. Need to … Read more

Is PSA Duralar™ archival?

Is PSA Duralar™ archival? No. Pressure-sensitive adhesive (PSA) Duralar has a stick-and-stay adhesive coating on one side; it breaks the number one rule of archiving – material used for archiving can’t interfere with the materials it is supposed to protect. PSA DuraLar is pH neutral, and water clear, which makes it great for lamination and … Read more

Is Metallized DuraLar™ archival?

Polyester Film

Is Metallized DuraLar™ archival? No. There are three aspects that go into determining whether a polyester film is actually archival grade: 1- whether it is pH neutral, 2- whether or not the film will impact what it comes in contact with, and 3- whether it can be sonically welded to itself. Metallized DuraLar is a … Read more

Is LaserPro™ considered an archival film?

Is LaserPro™ considered an archival film? Nope. Even though it’s made of polyester film, it’s laser cuttable release coatings on the surface are not made to be of archival quality. If you’re looking for a good all-around archival grade film, try our Archival Duralar™ product line which meets the Library of Congress’ specifications for archival … Read more

Is Double Tack™ archival?

Is Double Tack™ archival?  No. The first rule for creating archiving materials is that the archival material can’t interfere with the thing it is protecting. DoubleTack has a stick-and-stay adhesive coating on both sides of the polyester carrier film. So it breaks that important rule! DoubleTack is pH neutral, and has good contact clarity, which … Read more

Is Hazy DuraLar™ archival?

Rolls of Hazy DuraLar Polyester Film and Sheets

Is Hazy DuraLar™ archival? Yes and no. There are three aspects that go into determining whether a polyester film is actually archival grade: 1- whether it is pH neutral, 2- whether or not the film will impact what it comes in contact with, and 3- whether it can be sonically welded to itself. Hazy DuraLar is … Read more

Is DFML Thermoformable?

Yes, DFML is Thermoformable.  However the more you draw this film, the more the micro louvre lens surface gets distorted.  This could be a good thing or a bad thing depending on the diffusion you are trying to create.  For something like this, it is always best to experiment.