Cast PE Film
One Cast PE process. Two engineered surfaces — breathable when the skin needs to breathe, non-breathable when the absorbent core does the work.
Cast polyethylene film in two variants — microporous Breathable (WVTR 2,000-5,000) and non-porous Non-Breathable soft-touch — for diapers, sanitary napkins, adult incontinence and medical disposables.
Cast PE Film is our cast polyethylene line — one extrusion process, two engineered surfaces.
Breathable variant
The film's structure is interrupted by approximately 1.4 billion pores per cm², each measuring 0.1 to 10 microns. Each pore is roughly a thousand times larger than a water vapor molecule, but a thousand times smaller than a water droplet. Vapor and air get through — skin can breathe. Liquid stays in — leaks don't happen. The result is a backsheet that feels cool and dry against the skin, even after hours of wear.
Non-Breathable variant
Sometimes the right backsheet is one that simply doesn't let anything through — vapor, air or liquid. Our Non-Breathable variant is exactly that, engineered with a soft, cloth-like chill-roll texture so it doesn't read as "plasticky" against the skin. Non-porous structure means full liquid and vapor barrier — at a cost that economy SKUs can build around.
When to pick which
Breathable for premium, long-wear products where skin comfort matters most. Non-Breathable when the absorbent core retains moisture, when price is the priority, or when the product is single-use and short-duration. Most converters specify both across their portfolio.
Numbers, not adjectives.
Every parameter below can be sharpened to your specific application. Talk to engineering with your line speed, SAP system and topsheet — we'll narrow these to a tight target window.
| Property | Value | Method |
|---|---|---|
| Variants | Breathable · Non-Breathable | — |
| Basis weight | 10 - 40 g/m² | Internal |
| Width | up to 2,400 mm | Internal |
| Breathable — WVTR | 2,000 - 5,000 g/m²/24 hr | ASTM E96-2000 |
| Breathable — pores | ≈ 1.4 × 10⁹ /cm² · 0.1 - 10 µm | SEM |
| Non-Breathable — structure | Non-porous; full liquid and vapor barrier; soft-touch chill-roll texture | — |
| Defect inspection | Online inspection on every cast line | — |
| Tensile (MD / CD) | Configurable per spec | ASTM D882 |
| Tear strength | Configurable | ASTM D1922 |
| Peel strength | Configurable | ASTM D903 |
| Hydro-head | Configurable | AATCC 127 |
| Surface treatment | Corona, 1 or 2 sides | — |
What's tuneable.
Every Rhyfeel grade is built around the buyer's spec — not around a stock SKU.
The finished products converters build with this grade.
Real Rhyfeel film sits inside every one of these. The brand on the package isn't ours — but the layer closest to the skin usually is.
Premium baby diaper (breathable)
Economy adult diaper (non-breathable)
Sanitary napkin backsheet
Adult pull-up
Hospital under-pads
Surgical isolation gown
The verticals that ship this film at scale.
A specialist, not a one-stop shop.
We make Cast PE film for a living. That's our entire factory floor — not a side line. The result is the kind of micron-level discipline only a focused supplier can deliver.
- W&H MIRAFLEX II — prints on 12 gsm at 500 m/min, which most lines in India can't.
- Closed-loop scrap recovery — extrusion trim re-enters the melt feed.
- 2,000 m² 3-micron clean shed — your end-customer's audit won't fail on dust.
- Direct sales worldwide — you talk to the team that made the film.
What people ask before they sample.
Other films you might pair with this one.
Want a Cast PE Film tuned to your line speed?
Tell us your gsm, your width and your line speed. We'll send a 50-meter sample within ten working days.