Toray Lumirror X43 PET Film is the second-lowest gloss grade among X42, X43, and X44, offered in ten thicknesses from 12 to 150 micron
Ten thicknesses, from 12 to 150 um, and a gloss reading that stays in a narrow band across most of them: that is the first thing the Toray Lumirror X43 PET Film datasheet shows.
The Numbers Worth Remembering
According to its datasheet, Lumirror X43 is a pigment filled, direct matted polyester film. It shows a particular surface compared with sand matted types, and it has the second-lowest specular gloss among Lumirror X42, X43, and X44. The listed applications are hot stamping foil, releasing, and similar uses. Five figures sum it up:
- Thickness range: 12, 19, 23, 26, 38, 50, 75, 100, 125, and 150 um
- Specular gloss: about 29 to 35 percent from 12 to 125 um, rising to about 41 percent at 150 um (ASTM D2457)
- Tensile strength: about 205 to 225 MPa for most grades up to 100 um, easing to about 175 MPa in MD at 150 um (ASTM D882)
- Heat shrinkage at 150°C for 30 minutes: about 1.1 to 1.6 percent in MD (ASTM D1204)
- Heat shrinkage at 190°C for 20 minutes: about 2.0 to 3.5 percent in MD (ASTM D1204)
What Specular Gloss Tells You
Specular gloss measures how much light reflects off a surface like a mirror, so a lower number means a duller, more matte surface. Direct matted generally means the matte effect comes from fine particles built into the film itself, rather than from roughening the surface afterward (a general explanation, not from this datasheet). The datasheet does not state the measurement angle, so compare gloss figures only within the same test setup.
Two things stand out. First, the gloss is quite consistent from 12 to 125 um, which is useful if you want a similar matte look across different thicknesses. Second, the 150 um grade is noticeably glossier at about 41 percent, so if the look of the surface matters, test that grade on its own.
How Thickness Changes the Picture
Strength. The thin and mid grades hold about 205 to 225 MPa in both directions. The thickest grades ease down, with about 196 MPa at 125 um and about 175 MPa in MD at 150 um. Note that MPa is force per unit area, so a thicker film can still carry more total load.
Stretch. Elongation at break stays in the range of about 95 to 150 percent across the grades, with no strong pattern by thickness.
Heat behavior. At 150°C, MD shrinkage sits at about 1.1 to 1.6 percent and TD shrinkage is very low, about 0.1 to 0.3 percent for most grades. TD shrinkage rises in the 125 and 150 um grades, to about 0.5 and 0.7 percent. At the harsher 190°C, MD shrinkage is about 2.0 to 3.5 percent, and TD runs from about 0.0 to 0.4 percent for the thin and mid grades, up to about 0.9 and 1.2 percent for the 125 and 150 um grades. A few TD readings are slightly negative, which means a very small expansion rather than shrinkage. The 38 um grade shows the highest MD shrinkage at both temperatures.
What that means in use. Hot stamping foil and release applications both involve heat. If your process runs near 190°C, the datasheet suggests checking the 38 um grade for MD movement and the thickest grades for TD movement.
Where It Is Used
The datasheet lists hot stamping foil and releasing. In general, a matte base film can give a foil or a release layer a softer, lower-gloss look, and the matte texture can help with winding and handling (a general explanation, not from this datasheet). The datasheet does not describe the exact role of the film in either process, so confirm suitability with your own line and test samples.
How It Differs from Neighboring Grades
- Toray Lumirror X42 PET Film is the closest relative, and the datasheets rank it as the lowest-gloss grade of the three. X42 reads about 19 to 22 percent gloss, while X43 reads about 29 to 41 percent, so X43 is the glossier of the two. At 12 um, MD tensile strength is about 205 MPa for X42 and 215 MPa for X43. X42 is offered in 5 thicknesses from 12 to 50 um, while X43 covers 10 thicknesses up to 150 um.
- Toray Lumirror T60 PET Film is the clear opposite: a high transparent film listed for graphic arts, membrane switches, and labels, where X43 is matte and listed for foil and release.
What the Datasheet Does Not Say
- The values are typical data under specific test conditions and are not limiting specifications, as the datasheet itself notes.
- No haze, light transmittance, surface roughness values, tensile modulus, surface tension, or thickness tolerance are listed.
- The gloss measurement angle is not stated.
- The datasheet does not describe how the film is used inside a foil or release product.
- X44 is mentioned for comparison, but its data is not included here.
Questions Buyers Ask About Toray Lumirror X43 PET Film
Which of the X42, X43, and X44 grades is the most matte?
According to the datasheet, X42 has the lowest specular gloss, X43 has the second lowest, and X44 is the glossiest of the three.
Does the gloss of Lumirror X43 change with thickness?
Only a little up to 125 um, at about 29 to 35 percent. The 150 um grade reads about 41 percent.
Which grades shrink the least under heat?
The mid-thickness grades, around 50 to 100 um, show among the lowest MD shrinkage at both 150°C and 190°C, about 1.1 to 1.2 percent and 2.0 to 2.3 percent.
What applications does the datasheet list?
Hot stamping foil, releasing, and similar uses.
Can I buy Toray Lumirror X43 PET Film from Jinlu Film?
Yes. Jinlu Film supplies Toray Lumirror X43 PET Film. If you prefer a comparable-specification alternative, including domestic options, we can offer those as well, together with datasheets and samples so you can test them on your own line.
More PET Film Guides
- Toray Lumirror X10S PET Film: a low oligomer, heat-rated film for Class B motor insulation
- Toray Lumirror P60 PET Film: a one-side corona treated film for snack and retort pouch packaging
- Toray Lumirror P52 PET Film: a 12 um pretreated film for metallizing, compared with P525
- Toray Lumirror F552 PET Film: an ultra-thin base film for thermal transfer ribbon
- Toray Lumirror F71 PET Film: a glossy transparent film at 12 and 19 um for metallic yarn and photoresist
Sourcing Matte Base Film
Jinlu Film supplies Toray Lumirror X43 PET Film, along with comparable matte polyester film grades, including domestic alternatives, for hot stamping foil and release applications. Tell us your process, thickness, and the gloss level you need, and contact us for technical data, samples, or a factory quote.
Source: Toray’s publicly available Lumirror X43 technical data sheet (typical values). Please refer to the latest official version. Lumirror, Toray, and related names are trademarks of their respective owners. This article is an independent explanation for reference only.
