The film, adhesive and coating are engineered as one system — for multi-pass reflow, ORH1 highly active fluxes and high-pressure chemical washes.
Glass transition above 250 °C and thermal decomposition above 500 °C — the headroom that lets it survive lead-free reflow where polyester and paper cannot.
A label that shrinks or curls takes its barcode with it — a distorted code fails verification even with the print intact. Our polyimide stays dimensionally stable through advanced reflow and wave solder.
The film resists solvents and cleaners — but the exposed surface is the topcoat. Our non-yellowing, non-softening coatings resist abrasion at temperature and withstand highly corrosive, highly active fluxes.
Polyimide is inherently flame retardant. Selected constructions carry UL94 VTM-0: XF-603, XF-731, XF-781.
Polyimide is an electrical insulator — the reason it can sit on a populated board without creating a conductive path.
Its stiffness supports small die-cut formats and automated application without distortion, and enables 1 mil constructions that stay stable where a softer film would not.
| Long term | 100 hrs @ 150 °C (302 °F) |
| Operating | 5 min @ 260 °C (500 °F) |
| Short term | 90 sec @ 300 °C (572 °F) |
ORH1 designates a highly active rosin flux: better wetting during soldering, and more aggressive chemical attack on everything else — including the label topcoat. We name the class and identify exactly which materials are validated against it.
| Film | ORH1 flux resistant |
|---|---|
| 1 mil polyimide | XF-603 · XF-731 · XF-781 |
| 2 mil polyimide | XF-732 · XF-782 |
For static-sensitive assemblies, static-dissipative through the whole stack — topcoat, adhesive and release liner — protecting against charge from human contact (HBM) and charged devices (CDM). The < 125 V low-charging spec holds on liner removal and again when the label is removed and repositioned.
| Surface resistance | ≥10⁹ and ≤10¹¹ ohms |
| Low charging — PSA & liner | < 125 V |
| Static decay | 0.02 sec to 1% (EIA 541, XF-101ME) |
| ESD surface durability | >500 IPA double rubs (ASTM D4752-10) |
ESD materials: XF-781 · XF-784 · XF-782 · XF-446 · Apex XF-101ME · XF-101SE · XF-102SE
Apex shares the polyimide film and thermal envelope of the established range; the coating and adhesive system is reformulated for where PCB processes have moved — more aggressive cleaning, more active fluxes and smaller barcodes. For a new qualification on an aggressive line, start with Apex; where a material is already qualified, there is no reason to requalify.
| SKU | Finish | Thickness |
|---|---|---|
| XF-101M / XF-102M | Matte white | 1 mil / 2 mil |
| XF-101S / XF-102S | Semi-gloss white | 1 mil / 2 mil |
| XF-101G / XF-102G | High gloss white | 1 mil / 2 mil |
| XF-101ME | Matte white, ESD-safe | 1 mil |
| XF-101SE / XF-102SE | Semi-gloss white, ESD-safe | 1 mil / 2 mil |
All polyimide materials rated 100 hrs @ 150 °C · 5 min @ 260 °C · 90 sec @ 300 °C unless noted.
| Product | Finish | Adhesive | ORH1 | ESD | UL94 VTM-0 | REACH/RoHS | UL 969 |
|---|---|---|---|---|---|---|---|
| XF-504 | Semi-gloss blue | 1 mil acrylic | ✓ | ✓ | |||
| XF-505 | Semi-gloss green | 1 mil acrylic | ✓ | ✓ | |||
| XF-518 | Matte white | 1 mil acrylic | ✓ | ✓ | |||
| XF-528 | High gloss white | 1 mil acrylic | ✓ | ✓ | |||
| XF-581 | Semi-gloss white | 1 mil acrylic | ✓ | ✓ | |||
| XF-583 | Matte white | 1 mil acrylic | ✓ | ✓ | |||
| XF-603 | Semi-gloss white | 1.1 mil acrylic | ✓ | ✓ | ✓ | ||
| XF-731 | Semi-gloss white | 1 mil acrylic | ✓ | ✓ | ✓ | ||
| XF-781 | Semi-gloss white | 1 mil acrylic | ✓ | ✓ | ✓ | ✓ |
| Product | Finish | Adhesive | ORH1 | ESD | UL94 VTM-0 | REACH/RoHS | UL 969 |
|---|---|---|---|---|---|---|---|
| XF-519 | Matte white | 1.5 mil acrylic | ✓ | ✓ | |||
| XF-520 | Semi-gloss yellow | 2 mil acrylic | ✓ | ✓ | |||
| XF-525 | Semi-gloss green | 2 mil acrylic | ✓ | ✓ | |||
| XF-529 | High gloss white | 1.5 mil acrylic | ✓ | ✓ | |||
| XF-541 | Matte buff | 2 mil acrylic | ✓ | ✓ | |||
| XF-552 | High gloss yellow | 2.4 mil acrylic | ✓ | ||||
| XF-555 | High gloss white | 2 mil acrylic | ✓ | ✓ | |||
| XF-582 | Semi-gloss white | 2 mil acrylic | ✓ | ✓ | |||
| XF-584 | Matte white | 2 mil acrylic | ✓ | ✓ | |||
| XF-592 | Semi-gloss white | 2.4 mil acrylic | ✓ | ✓ | |||
| XF-732 | Semi-gloss white | 2 mil acrylic | ✓ | ✓ | ✓ | ||
| XF-782 | Semi-gloss white | 2 mil acrylic | ✓ | ✓ | ✓ | ✓ |
| Product | Film | Finish | Adhesive | ESD | Temperature | REACH/RoHS | UL 969 |
|---|---|---|---|---|---|---|---|
| XF-611 | 1.5 mil polyester | Semi-gloss white | 1.1 mil acrylic | −40 to 150 °C | ✓ | ✓ | |
| XF-446 | 2 mil polyester | Gloss white | 1 mil acrylic | ✓ | 100 hrs @ 150 °C; −40 to 204 °C | ✓ | ✓ |
Specifications transcribed from product literature; ESD = static-dissipative and low-charging. Verify against the current technical data sheet before production.
PCB identification · WIP labeling · component tracking · IC permanent ID
Asset tracking · warranty labeling · ESD-safe packaging · stacked-product labels
Aerospace · Automotive · Electronics · Laboratory
Typically 100 hours at 150 °C, 5 minutes at 260 °C and 90 seconds at 300 °C — covering standard and lead-free reflow as well as wave solder exposure.
The film rarely fails. The topcoat carrying the printed image and the adhesive at the bond line decide whether a label survives — both are formulated and coated, and that is where the engineering sits.
ORH1 designates a highly active rosin flux — better wetting during soldering, and more aggressive attack on everything else it contacts, including the topcoat. Validated: XF-603, XF-731, XF-781, XF-732, XF-782.
Tell us your process conditions, printer and ribbon — we will match a material and send samples.