Sustainable Aerosols: The Future of Eco-Friendly Packaging with Bag-on-Valve System

🌿 The green revolution in the aerosol industry

The aerosol industry is undergoing an unprecedented transformation. With a global market projected to reach 124.37 billion dollars by 2030, according to industry analyst projections, the pressure to adopt sustainable practices has never been so intense. Spain, the fourth largest European producer with approximately 370 million units annually, is at the epicenter of this green revolution.

Consumers have spoken: 54% are willing to pay more for sustainable products, according to the 2024 Global Sustainability Study by Simon-Kucher. This figure represents a notable increase from the 35% recorded in 2022, evidencing a structural shift in purchasing habits.

"Companies that invest in green innovation and adopt sustainable practices will be better positioned to comply with future regulations and satisfy the demand of increasingly environmentally conscious consumers." — Aerosol environmental regulation experts

🔬 Bag-on-Valve (BoV) Technology: Operation and benefits

The Bag-on-Valve system represents the most significant innovation in aerosol packaging in recent decades. This technology physically separates the product from the propellant using a hermetically sealed laminated polymer bag inside the metal container.

When the user activates the valve, the propellant —generally compressed air or nitrogen— exerts pressure on the bag, expelling the product without it ever coming into contact with the driving gas. The result is a purer, more controlled, and sustainable dispensing.

The advantages of the BoV system are multiple: it allows for almost total product evacuation (close to 100%), eliminates the risk of contamination, extends the shelf life of the content, and enables use at any application angle, even inverted. The global market for BoV products reached 474.5 million dollars in 2024, with projections of sustained growth up to 684 million by 2033.

💨 What differentiates compressed air packaging from traditional gases?

Conventional aerosols use hydrocarbon propellants such as propane, butane, or isobutane mixed directly with the product. These gases, while effective, have drawbacks: they are flammable, contribute to volatile organic compound (VOC) emissions, and cause product cooling during application.

Packaging with compressed air or nitrogen eliminates these problems. According to TUNAP studies, BoV systems with atmospheric propellants do not generate emissions with global warming potential and are completely non-flammable, eliminating the risk of accidental ignition.

"With bag-on-valve, no climate-damaging emissions are released during manufacturing or during the spraying process: the propellants have no greenhouse potential." — TUNAP, specialists in sustainable chemistry

♻️ Recycled Aluminum Packaging: Minimizing the carbon footprint

Aluminum dominates the aerosol packaging market for compelling reasons. It is infinitely recyclable without losing properties, and the recycling process consumes only 5% of the energy required to produce primary aluminum.

According to data from Hydro, while conventional primary aluminum generates approximately 14.8 kg of CO₂ equivalent per kilo, products with high recycled content can reduce this figure to 1.9 kg of CO₂. This 87% reduction in carbon footprint makes recycled aluminum the undisputed protagonist of sustainable packaging.

In Spain, recycling specialists confirm that an aluminum container made entirely of recycled material would reduce its current carbon footprint by 96%.

🏅 What eco certifications and labels exist for spray products?

The European regulatory framework demands verifiable transparency. The main certifications for sustainable aerosols include:

The UNE-EN 15343 standard has become a mandatory reference in Spain since January 2024 to accredit recycled plastic content in packaging. Environmental Product Declarations (EPD) under the Environdec program provide standardized information on environmental impact. The ASI Performance Standard certification guarantees responsible aluminum production.

Additionally, labels such as AENOR Carbon Footprint and verifications according to PAS 2050 methodology allow manufacturers to credibly communicate their environmental commitments.

🧪 Sustainable Propellants and Zero Waste Formulas

The evolution of propellants marks the pulse of sustainability in aerosols. HFO 1234ze has emerged as an alternative to HFC 134a, with a significantly lower global warming potential. Pioneering companies like Aerolub are leading this transition in Europe.

Biodegradable formulations between 70% and 100% are already a commercial reality, although they represent a marginal volume. These products minimize or eliminate VOCs and lack components that are irritating or hazardous to the environment.

"Many professional customers are not yet willing to pay more for a product that is just as effective but uses non-flammable propellants and a more sustainable formulation, but regulatory change is accelerating this transition." — François Fery, General Manager of Aerolub

📋 How to adapt your product line to environmental regulations

The Directive (EU) 2024/2881 on air quality sets stricter limits for VOCs that directly affect aerosol propellants. From 2025, companies must adhere to Extended Producer Responsibility (EPR) systems for all their packaging.

The new regulatory framework requires labeling with information on packaging composition, separation instructions for recycling, and QR codes linking to expanded sustainability information. Extended responsibility fees will penalize packaging that is difficult to recycle, incentivizing innovation in materials and design.

For Spanish manufacturers, adaptation involves investment in R&D, product reformulation, and updating labeling and documentation processes.

🏆 Success stories of ecological aerosols in the Spanish market

Spain has manufacturers leading the sustainable transition. Ilerspray, from Torres de Segre (Lleida), combines more than 25 years of inherited experience with active environmental commitment: ecological propellants, 100% recyclable packaging, biodegradable formulations, and recycling systems implemented in the plant.

The Le-Brill range of automotive and industrial products exemplifies how technical efficacy can be combined with environmental responsibility. Its biodegradable ingredients, recyclable packaging, and climatic adaptability demonstrate that sustainability and performance are not incompatible.

At an industrial level, the use of Bag-on-Valve technology for pharmaceutical, cosmetic, and food products is growing steadily, with ISO 9001 and ISO 22716 certified companies guaranteeing traceability and quality throughout the value chain.

🛒 How does sustainable packaging impact the purchasing decision?

The data is conclusive: 51% of Spanish consumers consider the use of sustainable packaging materials to be fundamental in their purchasing decision, according to studies by Smurfit Kappa. The three factors that influence most are that the packaging is recyclable (49%), biodegradable (42%), and made with recycled materials (40%).

The 2024 Voice of the Consumer survey by PwC reveals that consumers would pay up to 9.7% more for sustainable products. Among millennials and Generation Z, almost half are willing to pay more for eco-friendly packaging.

For brands, investing in sustainability is no longer optional: it is a measurable competitive advantage that generates loyalty, improves reputation, and opens doors to increasingly demanding markets. Verifiable transparency and independent certifications have become essential requirements for connecting with the conscious consumer.