Bag on Valve Applications: The Complete Guide to BOV Technology Across Industries

If you’re a brand owner, product developer, or packaging engineer, you’ve likely encountered the term bag on valve — but understanding how broadly this technology applies can open up significant advantages for your product line. From sunscreen to cooking spray, insect repellent to pharmaceutical-grade wound care, bag on valve applications span a remarkable range of industries.

In this guide, we’ll walk through what makes BOV technology so versatile, break down its most important applications by industry, and explain why companies are increasingly choosing Signature Filling Company’s bag-on-valve contract filling services to bring their products to market.

What Is Bag on Valve Technology?

Bag on valve (BOV) is an aerosol packaging system in which the product is sealed inside a flexible, multi-layer laminated bag that is fitted directly onto the valve of a standard aerosol can. A propellant — typically compressed air or nitrogen — fills the space between the bag and the outer can. When the actuator is pressed, the propellant pressure collapses the bag, dispensing the product without it ever contacting the propellant.

This separation between product and propellant is the defining feature of BOV, and it’s what enables such a wide range of bag on valve applications across sensitive product categories.

Key structural components of a BOV system include:

• A laminated aluminum bag (FDA-approved, 3 or 4 layers depending on product sensitivity)
• A standard aerosol valve (female or male, depending on actuator requirements)
• Compressed air or nitrogen as a non-flammable, inert propellant
• A compatible actuator — available in a wide range of delivery formats
• A standard aluminum or tinplate aerosol can

Why Bag on Valve? Key Advantages That Drive Adoption

Before diving into specific bag on valve applications, it’s worth understanding the advantages that make this technology so appealing across so many product categories.

1. Up to 99% Product Evacuation

Unlike traditional aerosols, BOV systems allow nearly complete emptying of the product — minimizing waste and maximizing value for both brands and consumers.

2. 360° Spray at Any Angle

Because product is pushed out by external pressure on the bag rather than internal gas mixing, BOV cans spray reliably in any orientation — upside down, sideways, or at any angle. This is critical for medical, personal care, and food applications.

3. No Propellant Contamination

The physical separation of product and propellant means zero cross-contamination. This makes BOV ideal for oxygen-sensitive products, sterile formulations, and food-grade applications where purity is non-negotiable.

4. Extended Shelf Life

The hermetically sealed bag protects contents from oxidation, moisture, and microbial exposure. Products that would otherwise degrade quickly — such as oils, topical gels, or natural formulations — maintain their integrity far longer in a BOV container.

5. Environmentally Friendlier

Replacing volatile organic compound (VOC)-based propellants with compressed air or nitrogen significantly reduces the environmental footprint. According to the Consumer Specialty Products Association, reducing hydrocarbon propellant use in aerosols is one of the most impactful moves a manufacturer can make toward sustainability.

Bag on Valve Applications by Industry

Let’s look at the industries where bag on valve applications are most prominent — and why BOV outperforms traditional aerosol packaging in each context.

Personal Care & Cosmetics

This is one of the fastest-growing segments for bag on valve applications. The ability to deliver delicate formulations without propellant contamination makes BOV a natural fit for premium personal care.

Common personal care BOV products include:

• Sunscreens and sun care sprays (especially mineral/natural formulas sensitive to chemical exposure)
• Self-tanners and bronzing mists
• Facial mists and hydrating toners
• Shaving gels and foams
• Deodorants and antiperspirants
• Lotions, gels, and body creams
• Exfoliating and cleansing sprays

For cosmetic brands formulating with active botanicals, vitamins, or sensitive peptides, the bag on valve’s sealed environment prevents oxidation that would degrade efficacy. ISO 22716 GMP-certified manufacturers like Signature Filling Company are well-positioned to handle these requirements.

Food & Culinary Applications

FDA-approved bag on valve applications in the food industry have grown rapidly, particularly as consumers increasingly demand cleaner ingredient lists and more convenient delivery formats.

• Cooking oils (olive oil, avocado oil, coconut oil sprays)
• Baking and release sprays
• Butter and flavored oil sprays
• Syrups, dressings, and condiment sprays
• Coffee and tea concentrate sprays

The BOV format is especially appealing in food because no VOC propellants are used, keeping formulations clean-label compliant. Using compressed air as a propellant means nothing foreign enters the food product — a critical requirement for USDA and FDA compliance.

Medical & Pharmaceutical Applications

Perhaps the most technically demanding of all bag on valve applications, medical and pharmaceutical uses require sterile environments, precise dosing, and complete product-propellant separation. BOV technology meets all of these standards.

• Wound care and antiseptic sprays
• Dermatological preparations (topical steroids, antifungals)
• Nasal irrigation solutions
• Saline sprays and ophthalmic preparations
• Burn treatment products

BOV’s compatibility with nitrogen as a propellant makes it ideal for oxygen-sensitive medications. The system can also be sterilized and filled in cleanroom conditions, meeting pharmaceutical-grade sterility requirements.

Household & Industrial Products

The household and industrial sector has embraced bag on valve applications for their consistent delivery, safety, and reduced flammability risk versus traditional aerosol propellants.

• Insect repellents (especially formulas safe for children and pets)
• Multi-purpose cleaners and degreasers
• Air fresheners and odor neutralizers
• Fabric protectors and spot removers
• Essential oil diffusion sprays
• Industrial lubricants and solvents

For industrial applications, the non-flammable propellant profile of BOV systems can eliminate classification as a hazardous material — reducing shipping, storage, and regulatory burdens significantly.

Veterinary & Animal Care

A growing area for bag on valve applications is veterinary care, where topical treatments must be reliably delivered, non-contaminating, and safe for use by pet owners at home.

• Wound sprays and antiseptics for pets
• Flea and tick repellent sprays
• Coat conditioners and grooming sprays
• Medicated topical sprays

What to Look for in a Bag on Valve Contract Filling Partner

Choosing the right manufacturing partner is just as critical as choosing the right packaging format. Here’s what top-performing brands look for when evaluating bag on valve contract filling companies:

Certifications and Compliance

Your BOV manufacturer should hold relevant certifications for your product category. Look for FDA registration, SQF (Safe Quality Food) certification for food products, EPA compliance for pest control formulations, and ISO 22716 GMP for cosmetics. Signature Filling Company holds all of these — making it a rare one-stop shop for multi-category brands.

Flexible Run Sizes

Not every brand needs a million-unit run. Whether you’re launching a new SKU, running a seasonal product, or scaling up after a test market, your contract filler should accommodate your volume without compromise on quality.

Formulation Capability

Does your partner offer in-house formulation development? Working with a contract filler that can develop, test, and fill your formula under one roof dramatically reduces time-to-market and communication overhead.

Packaging Versatility

BOV is available in a wide range of can sizes and configurations. Your manufacturer should have access to various actuator types, can materials (aluminum vs. tinplate), and valve styles to match your product requirements and branding goals.

Partner with Signature Filling Company for Your Bag on Valve Applications

Signature Filling Company is a St. Louis-based contract filling company specializing in bag on valve aerosol packaging for food, personal care, and household products. With a full suite of certifications and end-to-end capabilities — from formulation through labeling, lot-coding, and shrink sleeve application — we’re built to handle the full complexity of your BOV project.

Our team works closely with brands of all sizes to deliver complete, shelf-ready products that meet regulatory standards and delight consumers. Whether you’re new to bag on valve technology or looking to expand your existing BOV product line, we’re ready to partner with you.

Explore our bag-on-valve services or contact our team today to discuss your project requirements.

Frequently Asked Questions About Bag on Valve Applications

What products are not suitable for bag on valve packaging?

Products that are highly viscous beyond BOV system tolerances, or those requiring very high dispensing pressure, may not be suitable. Solids or products with large particle sizes also present compatibility challenges. A contract filler can help evaluate your formulation.

Is bag on valve packaging more expensive than traditional aerosol?

BOV packaging has historically carried a slight premium over conventional aerosol, primarily due to the bag and valve assembly. However, the extended shelf life, higher product evacuation rates, and reduced propellant costs often offset the difference — particularly for premium or oxygen-sensitive formulations.

Can bag on valve cans be recycled?

Standard aluminum aerosol cans used in BOV systems are recyclable. The propellant (compressed air or nitrogen) depletes during use, meaning the can is typically empty and safe to place in standard aluminum recycling streams.

What propellants are used in bag on valve systems?

BOV systems primarily use compressed air or nitrogen — inert, non-flammable, and non-reactive propellants. This distinguishes them from conventional aerosols that rely on hydrocarbons or other VOC-based propellants.

Bag on valve applications continue to expand as brands discover the combination of consumer convenience, regulatory advantages, formulation compatibility, and sustainability benefits the technology offers. Whether your product lives in a medicine cabinet, kitchen pantry, or toolbox, BOV may be the packaging upgrade that sets it apart.

Ready to explore what bag on valve can do for your brand? Get in touch with Signature Filling Company — and let’s build something great together.