the unique oxygen barrier film – available in two thicknesses

At a glance

  • over 50 times more oxygen-tight
  • 9 layer multilayer film
  • reduces amount of spoiled silage
  • reduces losses from both the top and sides
  • reduces dry matter losses
  • saves time and effort
  • improves feed quality
  • reduces waste disposal costs
  • available up to a width of 27 m, special widths of up to 54 m on request

the sturdy oxygen barrier film

the unique oxygen barrier film

Available sizes

m 75 225
6 X  
7 X  
8 X X
9 X X
10 X X
11 X X
12 X X
13 X X
14 X X
16 X X
18 X X
20 X X
22 X X
24 X X
27 X X
m 50 150 300
6 X    
7 X    
8 X X X
9 X X  
10 X X X
11 X X  
12 X X X
13 X X  
14 X X X
16 X X X
18 X X X
20 X X X
22 X X X
24 X X X
27 X X X

On request, SILOSTOP® is available up to a special width of 54 m.


  • support lactic acid bacteria and therefore a rapid drop in pH
  • reduce the development of yeast and mould inside resp. on top of the silage right from the start
  • protect the forage from aerobic deterioration and nutrient losses
  • protect the forage against spoilage and mycotoxin contamination
  • reduce forage losses and the overall amount of work

Yeast and mould play a key role in the heating and spoilage of silages – either of which may occur whenever there is enough oxygen.

Oxygen has the biggest impact on the growth of these harmful microorganisms. It permeates the film during storage, thus allowing for growth and reproduction of yeast and mould in the upper layers of the closed silo.




SILOSTOP MAX: the sturdy oxygen barrier film SILOSTOP Black: the unique oxygen barrier film
  • is easy to dispose of
  • is easy to handle
  • is a multilayered film produced from polyethylene and EVOH (fully recyclable and economical in its material consumption)
  • should be secured with protective fabric / bird protection net
  • is an especially oxygen-tight film which inhibits over 50 times more oxygen than conventional PE-silage covers
  • oxygen permeation of 0 - 3 cm³ per m² per day / DIN 53380-03:1998-07
  • a top film adapting perfectly to the silo surface, suitable for all types of silage; thickness: 80 µ
  • available up to a width of 54 m and to a length of 225 m
  • resiliant and safe
  • oxygen permeation of 0 - 5 cm³ per m² per day / DIN 53380-03:1998-07
  • is a thin, adaptable top film suitable for all types of forages, thickness: 55 µ
  • available up to a width of 54 m and up to a length of 300 m

In order to achieve the same oxygen impermeability as SILOSTOP® MAX and SILOSTOP® Black, a PE film would have to have a thickness of 8000 µ (= 8 mm)! Such a film would be impossible to handle – the significantly higher costs and an ecologically absurd consumption of material notwithstanding.

Oxygen barrier films provide the solution: Its nearly oxygen-tight EVOH layer is protected by a PE layer on both sides of the film. Thus, SILOSTOP® MAX and SILOSTOP® Black are superior to all other conventional top films, when it comes to oxygen impermeability.

Fermentation trial featuring different types of covers

Comparison of polyethylene (PE) film and oxygen barrier film

SILOSTOP: mould, clostridia, aerobic stability

In this farm trial, one half of a maize silo was covered with oxygen barrier film, the other half was covered with a standard PE film (thickness: 125 µ, oxygen impermeability 200 cm³/m²/24 h). Silage samples taken from the upper 30 cm showed a much better hygiene underneath the oxygen barrier film. The amount of yeasts and clostridia was reduced to zero, resp. significantly, compared to the silage underneath the PE film. The stability after opening – on air exposure – was thereby improved by 65 hours – i. e. 2.7 days.

Minimizing the influence of oxygen on the silage reduces the risk of heating caused by yeasts and deterioration caused by mould – as the less oxygen they have at their disposal, the less they will grow. Their population stays small, meaning that their activity after opening (when oxygen becomes available) will be reduced accordingly. Oxygen barriers keep the air from penetrating the silo through the upper layers right from the beginning.

Especially after opening, oxygen barriers will ensure that there is no virtually explosive increase in yeasts. Yeasts produce heat (the heating after opening which is so well-known on farms) which in turn provides mould with optimum growth conditions. As mouldy parts may not be fed – due to the risk of mycotoxin contamination – the upper 30 cm layer of the forage is often a total loss.

High-energy silages provide yeasts with optimum conditions and are more prone to heating after opening – which makes minimizing the entry of oxygen all the more important.

Protect your silage with jbs barriereschutz protective fabric and our barrier protection belts jbs barriereschlauch (see illustration below). This ensures that only a small part of the silo will be affected by oxygen penetration should the silage film be damaged.

The improved fermentation alone saves 1.40 € per m²

Lactic acid bacteria work under anaerobic conditions – meaning if oxygen is absent. The less oxygen is troubling the bacteria, the faster and more efficient the fermentation.


The reduced oxygen permeation inhibits the activity of harmful microorganisms and improves the fermentation. Underneath the oxygen barrier film, dry matter losses were nearly cut in half (7.37 % instead of 14.4 %).

This means that in a depth of 30 cm, 4.1 kg of DM per m² could be saved underneath the oxygen barrier film (of a silage compressed with 195 kg DM per m³). This is not just more forage, but pure energy as acid-producing bacteria feed almost exclusively on carbohydrates.

Reduced DM losses per m² in a depth of 30 cm:

= + 4.1 kg DM (soluble carbohydrates resp. sugar) of molasses, containing roughly 40 % of sugar

4.1 kg DM 10 kg of molasses (0.18 €/kg)

= SILOSTOP® saves silage in the upper 30 cm layer amounting to 1.80 € per m²

Additional costs per m² for SILOSTOP® compared to other commercially available silage film: approximately 0.40 €

This means, SILOSTOP® can ensure a net saving of:
= 1.40 € per m² in the upper 30 cm layer

SILOSTOP: safe and easy handling

Safe and easy handling

  • sturdy, robust film
  • works without cling film
  • high-quality, protective packaging
  • flawless surface = reduces losses
  • reduces heating
  • reduces moulding

Rules to observe when installing thin film:

  1. Place loosely on top of the forage!

    Thin film should always be applied loosely in order for it to be able to adapt to the silage’s uneven surface (see illustration below)

  2. If at all possible: Do not tread upon it!

    If need be, only walk lengthwise, never over the sides.

  3. Secure overlappings with oxygen barriers!

    If film needs to be pieced on, allow for 50 cm of overlapping and secure it with an air barrier of silage gravel bags.

  4. Do not use sand to cover the film!

    Sand on the edges will pull the film too tight, sand on top of the silo will imperil the film due to the stones contained in the sand.

  5. Do not use old tires!

    Old tires will get brittle, the reinforcements will pierce through the rubber of the tire and damage the film. Tires do not form a consistent oxygen barrier, better use silage gravel bags filled to three quarters with fine gravel – combined with either of our products for an optimum oxygen barrier:

jbs barriereschlauch

Lay jbs barriereschlauch gravel bag belts across the silo and fill them with common silage gravel bags at the slopes. Use further gravel bags on top to errect a continuous oxygen barrier.


Attach the supplied stainless steel plates to the silo-safeline belt, then hook gravel bags into the plates at the slopes. Put further gravel bags on top of the silo to complete the oxygen barrier.

SILOSTOP: don’t apply the film too tightly

Prepare silage surface properly. It should be well-compressed and as smooth as possible. Don’t apply the film too tightly it should still be able to adapt to the silo’s uneven surface. This way, you’ll get a better adaption to the silo and a higher resilience of the film.

No more tires – jbs barriereschlauch or silo-safeline

In order to ensure that the air barrier’s contact pressure is consistent, use our silage gravel bags harvest INTERNATIONAL® silosack in combination with the barrier protection belts jbs barriereschlauch or with our silo-safeline.

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