Built for laptop screen protection: 180° privacy keeps your screen for your eyes only, with a scratch-resistant, heat-tolerant, wear-resistant surface. Top magnet bar + bottom washable adhesive bar — glue-free, attach and remove in seconds. iPad version available on request.
Drag to rotate. Hover or tap any layer — its specifications and measured data appear progressively on the right.
Sits on top of the film with a built-in magnet array that clamps onto the metal top bezel: glue-free, attach and remove in seconds, fully reusable. The MacBook top bar reserves a camera cutout.
The screen becomes invisible beyond roughly 60° from either side while the front view stays unaffected; the matte face resists scratches, heat and physical wear.
The optical base and functional coating form the 320±15μm use layer; hydrophobic surface (contact angle std ≥80°); transmittance ≥60% on both matte-side orientations.
A black washable adhesive bar that sits under the film and contacts the screen — working with the top magnet bar to hold the film firmly in place, easy to install and remove.
🖱 Drag to rotate · Hover a layer for its data · Slider controls the explode distance
Standard vs. measured values on every row — test reports available with shipment.
| Parameter | Unit | Standard | Measured | Test Method |
|---|---|---|---|---|
| Privacy viewing angle | ° | 60±3 | 61 | On-screen line observation |
| Use-layer thickness | μm | 320±15 | 317 | ASTM D374 |
| Water contact angle | ° | ≥80 | 106 | GB/T 30447-2013 |
| Transmittance | % | Matte side down ≥60 | 66.8 | ASTM D1003 |
| Matte side up ≥60 | 64 | |||
| Haze | % | Matte side down | 14.6 | ASTM D1003 |
| Matte side up | 12 | |||
| Blue-light blocking | % | 430nm | 38.2 | Blue-light tester |
| Pencil hardness | H | 500gf load | 1 | Pencil hardness tester |
| Abrasion | g/inch | 500g/cm² ×10 passes | No scratch | Alcohol/rubber abrasion tester |
* Measured values are from HANGMO outbound QC reports; certificates available with shipment.
Invisible beyond ~60° from either side; the front view stays fully clear — your screen, your eyes only.
The surface resists scratches and heat, staying clean through daily use.
The top magnet bar and bottom washable adhesive bar work together — glue-free, attach and remove in seconds.
The surface withstands physical wear, keeping its look and feel over time.
iPad version available on request. Send us your model list and quantity — factory direct, reply within 48 hours.
Contact Us for a QuoteBoth films in this series mount identically: a magnetic bar across the top, a washable adhesive bar across the bottom, and nothing bonded to the viewing area. A distributor stocks one mounting design and two films; a buyer swaps between them in seconds.
What changes is the surface treatment, and it moves four measurable properties at once. The table below is the entire difference, taken from outbound QC batches rather than datasheet targets.
| Specification | Magnetic Privacy | Magnetic Writing |
|---|---|---|
| Primary device | Laptop (MacBook); iPad version on request | Tablet (iPad) |
| Use-layer thickness | 320±15 µm · 317 measured | 260±20 µm · 264 measured |
| Transmittance | 66.8% · matte side down | 91.3% · standard ≥90 |
| Haze | 14.6% matte down / 12% matte up | 17.8% · standard ≤25 |
| Pencil hardness (500 gf) | 1H | 4H |
| Water contact angle | 106° · standard ≥80 | 100° · standard ≥80 |
| Privacy viewing angle | 61° · standard 60±3 | Not a privacy film |
| Blue-light blocking | 38.2% · @430 nm | Not specified |
| Abrasion (500 g/cm²) | No scratch · 10 passes | No scratch · 50 passes |
| Mounting | Magnet bar top + washable bar bottom | Same system · interchangeable |
All values from HANGMO outbound QC reports. Thickness ASTM D374 · transmittance and haze ASTM D1003 · water contact angle GB/T 30447-2013 · hardness 500 gf load · abrasion 500 g/cm².
The angle and the transmittance are one decision, not two. A privacy film works by narrowing where the image is readable, and the light you give up is the mechanism, not a defect. Judge this number against other privacy films; against clear film it will always look dark. The mounting is what makes the number usable in practice: a magnetic bar holds the top edge, a washable adhesive bar holds the bottom, and nothing is bonded to the viewing area.
This is not the "better" film, it is a different job. 17.8% haze is what gives a stylus grip; without it the tip slides and the writing experience is wrong. The 4H surface and 50 abrasion passes reflect stylus traffic rather than fingertip traffic. If a buyer asks why the writing film is harder than the privacy film, that is the answer.
We ship a sample pair — privacy and writing on the same mounting frame — with both QC sheets, so the comparison happens on the buyer's device instead of in a catalogue.
No. The viewing area carries no adhesive at all. A magnetic bar holds the top edge and a washable adhesive bar holds the bottom; the washable bar is designed to be rinsed and reused. That is why the film goes on and comes off in seconds, and why nothing is left behind on the panel.
Because the viewing angle is 61° (standard 60±3). A privacy film works by narrowing where the image stays readable, and the light it removes is the mechanism, not a manufacturing miss. Judge this number against other privacy films; against clear film it will always look dark. The writing film on the same mounting frame measures 91.3%.
Yes. Both use the same magnet bar and the same washable bar, so a distributor stocks one mounting design and two films. What changes between them is the surface treatment, not the way they attach — which is also why a buyer can swap one for the other on the same device in seconds.
It is built for it. The 17.8% haze gives the tip something to grip, and the surface measures 4H at 500 gf. Without that haze the tip slides and the writing feel is wrong — which is exactly why the writing film is hazier than the privacy film and harder as well (4H against 1H).
1,000 pcs per model. One order can mix films and grades; each combination simply has to meet its own 1,000 pcs. Distributors usually start with a sample pair on the same mounting frame, so both films are tested on the buyer's device before volume is committed.