It may be a digital world, but there’s still a lot of stuff on paper, and that’s where DuraLar Archival Film is needed!
Archival grade DuraLar polyester film is a high clarity polymer film base specifically for use in the encapsulation of paper artifacts, and document conservation. At Grafix Plastics, we follow the strict guidelines set forth by the Library of Congress to bring you an archival film that is optimal for historical document preservation and encapsulation. Further, archival grade DuraLar can be welded to itself with many of the ultrasonic welding devices used in the field.
We also offer branded archival polyester film such as Melinex™ 516 (Mylar® D replacement), Hostaphan™ 4TLM, and other Library of Congress approved archival films.
Features
- Archival Quality
- Dimensional Stability
- Ultra High Clarity
- Sealable on Ultrasonic Welders
- PH Neutral
- Non-yellowing
- Heat Resistance up to 200°C
- Great electrical resistance
- Good tensile strength
- Tear Resistance
Stock
- .003″/75um
- .004″/100um
- .005″/125um
- .001″/25um
- .002″/50um
- .007″/175um
- .010″/250um
** All sheets, rolls, and packs of Archival DuraLar are cut to order, and not kept in stock.
All our DuraLar films, including archival film, can be slit to width, rolled to length, or cut to size. Check out our extensive converting services pages for a full range of converting options for our DuraLar products.
This, coupled with our ability to provide you this material in your specified size/format, allow this product to be a powerful tool and any conservator’s tool box.
Specs
Properties are based on .001″/24um Archival DuraLar polyester film. Properties of other gauges and finishes of DuraLar polyester film can vary.
General DuraLar Spec Sheet
| Film Property | Value | Units | Test Method | ||
|---|---|---|---|---|---|
| Physical Properties | |||||
| Tensile Strength (MD) | 28,000 | psi | ASTM D 882 | ||
| Tensile Strength (TD) | 34,000 | psi | ASTM D 882 | ||
| Strength Elongation MD | 15,000 | psi | ASTM D 882 | ||
| Strength F-5 TD | 14,000 | psi | ASTM D 882 | ||
| Modulus MD | 710,000 | psi | ASTM D 882 | ||
| Modulus TD | 740,000 | psi | ASTM D 882 | ||
| Elongation MD | 115 | % | ASTM D 882 | ||
| Elongation TD | 92 | % | ASTM D 882 | ||
| Density | 1.39 | g/cc | ASTM D 1505 | ||
| Viscosity | 0.56 | dL/g | ASTM D 4603 | ||
| Electrical Properties | |||||
| Dielectric Strength | |||||
| AC, 20°C, .00092″ | 7,000 | volts/mil | ASTM D 149-64 | ||
| Dielectric Constant | |||||
| 25°C, 1 kHz | 3.2 | ASTM D150-81 | |||
| Dissipation Factor | |||||
| 25°C, 1 kHz | 0.005 | ASTM D150-65 | |||
| Volume Resistivity 25°C | 1.00E+19 | ohm-cm | ASTM D257-78 | ||
| Corona Threshold | 425 | V-AC | ASTM D2275-80 | ||
| Thermal Properties | |||||
| Melt Point | 200 | ||||
| Service Temperature Range | -70-150 | C | |||
| Dimensional Stability | |||||
| at 105° MD | 0.6 | % | Measured Shrinkage | ||
| at 105° TD | 0.9 | % | Measured Shrinkage | ||
| at 150° MD | 1.8 | % | Measured Shrinkage | ||
| at 150° TD | 1.1 | % | Measured Shrinkage | ||
| Specific Heat | 0.28 | ||||
| Thermal Expansion | 1.7×10-5 | ASTM D 696 | |||
| Optical Properties | |||||
| Transmission Visible | > 88 | % | |||
| Transmission Near IR | >80 | % | |||
| Haze | <1 | % | |||
| Refractive Index | 1.65 | RI | |||
| Chemical Properties | |||||
| Resistance by Class | |||||
| Acids | Good | ||||
| Bases | Good | ||||
| Solvents | Excellent | ||||
| Detergents | Excellent | ||||
| Oils | Good | ||||
| Permeability | |||||
| Water Vapor | 0.1 | g/100 in2/24hr. | ASTM E-96 | ||
| Carbon Dioxide | 16 | g/100 in2/24hr. | ASTM D1434-58 | ||
| Moisture Absorption | <.8 | % | ASTM D-570-63 | ||
| Stain Resistance | Most Household Agents & Chemicals | ||||
Safety
- DEHP, DBP and BBP free. Contact us for more details
- RoHS Compliant
- Meets MilSpec L-P-377C Type 1-3
Our experts are ready to help make your job easy! Please contact us with your requirements today by starting an inquiry.
