Welcome To
The Leading Silage Film & Bale Net Wrap Brand
We are the experienced manufacturer of silage film and net wrap. We have exported the products since 2011 to many countries, under Silopak, SFLM, and many OEM brands.
Our Silage Film Manufacturing Facility
From in-house silage film production to ready stock and fast worldwide shipping, every roll of Silopak round bale film and silage wrap is made and quality checked at our own factory in China.
Manufacturing ProcessWatch how our silage film is made
Silage Film
Silage film preserves the nutritional value of silage, feed mixes, hay, and maize. Wrapping forage in an airtight seal lets a farm store feed for months without depending on fresh grass, which keeps rations consistent through winter, drought, and every gap between cuts.
Silopak silage wrap is made from premium virgin LLDPE resins in our own factory in China. Tested by customers against harsh weather across dozens of export markets, our film has lasted more than 18 months in the field.
Every roll carries a 12 month warranty against UV degradation, a high tack level for a clean overlap seal, and the tear and puncture resistance needed for stalky crops and repeated bale handling. OEM and private label production is available.
High UV Resistance
12 months guarantee against UV degradation, so the film keeps its strength through a full outdoor season.
Suitable For All Wrappers
Individual round and square bales. Tubeline round and square bales.
High Quality Virgin Material
100% virgin LLDPE. No recycled content or filler, the usual cause of brittle film and uneven thickness.
Various Sizes
Thickness: 25 µm
Size: 750mm x 1500m, 500mm x 1800m, 250mm x 1800m
| Width (mm) | Thickness (µm) | Length (m) | Rolls per Pallet |
|---|---|---|---|
| 250 | 25 | 1800 | 120 |
| 375 | 25 | 1500 | 100 |
| 500 | 25 | 1800 | 60 / 70 |
| 750 | 25 | 1500 | 40 / 45 / 50 |
How to Apply Silopak Silage Film
- Individual round bales. Minimum 6 layers with 50% overlap.
- Individual square bales. Minimum 8 layers with 50% overlap.
- Tubeline round and square bales. Minimum 8 layers.
- Storage beyond 12 months. Apply additional layers to extend film life.
- Pre-stretch ratio. Maximum 55%. Over-stretching thins the film and removes the puncture reserve.
- Roll storage. Keep rolls in original packaging, out of direct sunlight, until they go on the wrapper.
High Tear and Puncture Resistance
Bale wrap fails at the weakest point, not the average one. Silopak silage film stretches around sharp stems and absorbs impact instead of splitting, so oxygen stays out and the bale stays clean.
Resistance TestSee the film stretched to its limit
A single puncture from a sharp stalk, a cut corner on a square bale, or a stone picked up by the baler is enough to let oxygen back into the bale, and once air enters, mould and dry matter loss follow within days. Silopak film uses multi-layer cast LLDPE with high elastic recovery, so it stretches around sharp material instead of splitting.
The video shows the same test our production team runs on every batch before it leaves the factory. The film is pulled well beyond its working stretch and pressed against a hard edge, and it holds. That is what protects a bale through handling, stacking, transport, and a full season outdoors.
Why Puncture Resistance Matters in the Field
- Stalky and coarse crops. Maize, sorghum, and mature grass carry sharp stems that press against the film as the bale settles. Low puncture strength creates pinholes that are invisible on day one and obvious as spoilage on day 60.
- Handling and stacking. Bale grabs, forks, and two-high stacking put concentrated pressure on the wrap. High tear resistance stops a small nick from running into a long tear.
- Birds, rodents, and weather. Outdoor storage means claw damage, hail, and UV. Tear propagation resistance keeps damage local and repairable with tape instead of ruining the bale.
- Long term storage. Carryover bales sit through a full cycle of sun, rain, and frost. Film that stays elastic instead of turning brittle is what keeps the seal intact past the first season.
Key Mechanical Properties
| Property | Silopak Silage Film | What It Means for the Bale |
|---|---|---|
| Base resin | 100% virgin LLDPE | Elastic, not brittle. Resists splitting on sharp stems. |
| Thickness | 25 micron, consistent across width | No weak lanes. Even protection over the whole bale. |
| Pre-stretch | Maximum 55% | Tight wrap with film left in reserve for impact. |
| Cling | High tack level | Overlaps seal properly and stay sealed in wind. |
| UV guarantee | 12 months against UV degradation | Strength retained through outdoor storage. |
| Proven field life | More than 18 months in customer use | Carryover feed stays usable into the next season. |
Our Products
A complete silage and forage packaging range from one manufacturer. Silage film, bale net wrap, round bale film, silage inoculant, and cotton wrap film are produced in our own factory in China, with OEM and private label available across the full lineup.
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Download Product Specifications
Full technical data sheets, roll sizes, pallet quantities, and OEM options in one company profile.