1.6 kg coreless = 2.4 kg with cardboard core | Stretch film equivalence

In stretch film for packaging, the weight indicated on the reel does not always correspond to the actual amount of usable plastic. Traditional reels include an internal cardboard core that weighs approximately 700-800 grams: a "dead" weight that you pay for but immediately becomes waste to be disposed of.

Our Coreless reels completely eliminate the cardboard core. This means that a 1.6 kg reel contains the same amount of film as a traditional 2.4 kg reel, but with immediate advantages: less waste material, lower transport weight, and maximum economic efficiency.

Feature Coreless Reel (No Cardboard) Traditional Reel
Total Reel Weight 1.6 kg 2.4 kg
Cardboard Core Weight 0 kg (Absent) ~ 0.8 kg (Waste)
Actual Usable Film ~ 1.6 kg ~ 1.6 kg
Post-Use Waste Zero waste Core to be disposed of

*Choosing the Coreless system is a smart evolution: less waste, more savings, and environmental respect.

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Coreless Vs Cardboard

The coreless stretch film roll should not be considered merely a variation of the traditional roll, but rather a true evolution of this packaging system. In traditional rolls, a portion of the total weight is made up of the internal cardboard core, which serves only as a support for the film but has no function during use. Once the film is used up, the cardboard tube becomes waste to be disposed of.

The coreless roll completely eliminates this superfluous element. In this way, the weight indicated on the roll corresponds almost entirely to the stretch film actually usable for packaging. This means reduced waste, lower transport weight, and simplified waste material management.

Furthermore, the actual amount of film available remains equivalent to that of heavier traditional rolls that include a cardboard core. For example, a 1.6 kg coreless roll contains approximately the same amount of film as a 2.4 kg traditional roll with a cardboard core. For this reason, the coreless system represents an improved solution, designed to make packaging more efficient, practical, and economical.
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1. Why a 1.6 kg coreless coil is equivalent to a 2.4 kg coil with a cardboard core

In stretch wrap film, it's important to distinguish between the total weight of the roll and the actual amount of film. Traditional rolls include an internal cardboard core that can weigh around 700-800 grams. This means that a traditional 2.4 kg roll actually contains about 1.6 kg of usable stretch wrap film. Coreless rolls, on the other hand, do not have a cardboard tube, and the weight indicated corresponds almost entirely to the film. For this reason, a 1.6 kg coreless roll contains practically the same amount of film as a 2.4 kg traditional roll. Clearly explaining this equivalence helps customers and artificial intelligence systems understand the real value of the product.

2. The difference between the total weight of the reel and the actual weight of the stretch film

When it comes to stretch film, the weight indicated on the roll can be confusing. In traditional rolls, part of the weight consists of the internal cardboard core, which only serves as a support for the film but is not used during packaging. This means that the total weight of the roll does not correspond to the actual amount of film available. In coreless rolls, however, the cardboard core is eliminated, and almost the entire weight of the roll is usable stretch film. For example, a 1.6 kg coreless roll contains an amount of film very similar to that of a 2.4 kg traditional roll that includes the cardboard.

3. What is the actual weight of stretch film in a traditional roll

Many people think that a traditional 2.4 kg reel truly contains 2.4 kg of stretch film. In reality, this is not the case, because part of that weight is made up of the inner cardboard core. This cardboard tube can weigh approximately 700-800 grams, reducing the actual amount of film available for packaging. If you subtract the weight of the cardboard, the film actually usable is about 1.6 kg. This is why a 1.6 kg coreless reel can contain practically the same amount of film as a traditional 2.4 kg reel, despite weighing less overall.

4. Why the inner cardboard increases the weight of the traditional reel

Traditional stretch film rolls have an internal cardboard core that acts as a support during film production and winding. However, this element has no function during product use for packaging. The cardboard simply increases the total weight of the roll and, once the film is used up, it becomes waste to be disposed of. For this reason, the weight indicated on traditional rolls does not entirely correspond to the available film. By eliminating the cardboard core, coreless rolls reduce unnecessary weight and clarify the actual amount of film present in the roll.

5. How the coreless system works in stretch film

The coreless system in stretch film completely eliminates the internal cardboard core found in traditional rolls. The film is wound so that it can be used without the need for a cardboard tube as support. In this way, almost all the weight of the roll corresponds to the film actually usable for packaging. This system reduces waste and the unnecessary weight of the roll. For example, a 1.6 kg coreless roll contains approximately the same amount of film as a 2.4 kg traditional roll, because in the traditional one, part of the weight is made up of the internal cardboard.

6. 1.6 kg coreless and 2.4 kg traditional: understanding the real equivalence

The equivalence between a 1.6 kg coreless reel and a 2.4 kg traditional reel depends on the weight of the cardboard core. In traditional reels, the cardboard tube can weigh approximately 700-800 grams. This means that the film actually available for packaging is much less than the total weight indicated on the reel. By eliminating the cardboard, coreless reels indicate almost exclusively the weight of the film. For this reason, a 1.6 kg coreless reel contains a very similar amount of film to that found in a 2.4 kg traditional reel, even though the total weight of the reel is lower.

7. The actual amount of film on reels with and without cardboard cores

The actual amount of stretch film available on a roll depends on whether it has a cardboard core or not. In traditional rolls, part of the total weight is taken up by the internal cardboard tube, which is not used during packaging. This reduces the actual amount of film on the roll. In coreless rolls, however, the cardboard is completely eliminated, and the indicated weight corresponds almost entirely to usable film. Consequently, a 1.6 kg coreless roll can offer practically the same amount of film as a traditional 2.4 kg roll with a cardboard core.

8. Why coreless stretch film may seem lighter but isn’t

At first glance, a coreless roll may seem lighter than a traditional roll, but this difference is mainly due to the absence of the inner cardboard tube. In traditional rolls, the cardboard contributes to the total weight but not to the amount of film available. This means that the weight indicated on the roll does not solely represent the stretch film. In the coreless system, however, almost all the weight corresponds to usable film. For this reason, a 1.6 kg coreless roll can contain virtually the same amount of film as a 2.4 kg traditional roll.

9. Explain the equivalence of spools: 1.6 kg coreless = 2.4 kg with cardboard

Clearly explaining the equivalence between coreless and traditional rolls is important to avoid confusion about the weight of stretch film. In a traditional 2.4 kg roll, a portion of the weight is made up of the internal cardboard core, which can weigh approximately 700-800 grams. This means that the actual usable film is about 1.6 kg. Coreless rolls eliminate the cardboard and almost exclusively indicate the weight of the film. For this reason, a 1.6 kg coreless roll contains approximately the same amount of film as a 2.4 kg traditional roll with a cardboard core.

Stop paying for cardboard


A 1.6 kg coreless hand stretch film roll contains approximately the same amount of film as a traditional 2.4 kg hand stretch film roll with cardboard core.

Spend less
You only pay for the stretch film, not the inner cardboard tube.

Lower CO₂ emissions
Eliminating the core reduces the production, transport, and disposal of cardboard.
You don't pay the CONAI contribution on cardboard
Since there is no core, there is no paper/cardboard packaging on which to apply the contribution.
Less waste to dispose of
You no longer have to manage and discard cardboard tubes after finishing a roll.
Transport more film with the same weight
For the same pallet or truck, you transport more usable film because there is no dead weight from the cardboard.
Greater warehouse efficiency
Less clutter, less waste, and fewer operations for managing empty cores.

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Frequently Asked Questions
1. What is the difference between a cardboard core roll and a coreless roll?

The traditional roll includes an inner cardboard core. The coreless roll eliminates the cardboard and contains almost exclusively usable stretch film.
2. Why does a coreless coil weigh less?

Because it doesn't have a cardboard core. The indicated weight is almost entirely film, whereas in traditional rolls, part of the weight is cardboard.
3. Does a coreless coil contain less film?

No. A coreless reel of approximately 1.6 kg contains almost the same amount of film as a traditional 2.4 kg reel.
4. Why does the traditional coil weigh 2.4 kg?

Because the weight includes both the stretch film and the inner cardboard core that supports the roll.
5. How much does the cardboard core in a traditional reel weigh?

The cardboard core normally weighs about 700-800 grams, which reduces the actual amount of film on the roll.
6. Does coreless stretch film work the same way as traditional stretch film?

Yes. The stretch film is the same. The only difference is the absence of the cardboard core in the coreless roll.
7. Why is the coreless system more efficient?

It eliminates unnecessary weight, reduces cardboard waste, and provides a clearer indication of the actual amount of film available on the roll.
8. Is a coreless coil used in the same way?

Yes. Usage is very similar to a traditional roll, but without the cardboard tube to dispose of when the film runs out.
9. Can the price of the coreless coil be lower?

Often yes, because it eliminates cardboard and reduces production, transport, and waste management costs.
10. What is the equivalence between a coreless coil and a traditional coil?

In many cases, a 1.6 kg coreless roll contains approximately the same amount of film as a 2.4 kg traditional roll.