Frequently Asked Questions About BoV

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Is the propellant flammable?
No. The Bag-on-Valve system uses air or nitrogen as propellants, which makes the product unflammable and with no negative effects on the ozone layer.
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Can I turn the bottle upside down?
Sure! The possibility to spray at all angles is one of the major advantages of Bag-on-Valve.
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Does the propellant ever come into contact with the product?
No. With Bag-on-Valve the propellant is completely separated from the product. The product is filled into the bag and the propellant is filled into the area between the bag and the can.
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What kinds of products are suitable for Bag-on-Valve?
Virtually all liquids along with lotions, gels, creams and certain types of ointments.
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Does Bag-on-Valve mean I don’t have to use as many preservatives?
Because of the complete separation of the product from the surrounding air/oxygen, the use of preservatives can be reduced. This must be tested in each case. In some cases the product can be sterilized to avoid the need for preservatives.
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Is the product protected from oxygen?
The Bag-on-Valve aerosol is a one way system where nothing gets in, neither through the valve nor the bag. Not even oxygen.
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What is the degree of emptying?
The degree of emptying with Bag-on-Valve ranges from total to very high, depending on product characteristics and package configuration.
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Is post filling sterilization possible?
Yes, sterilization through gamma radiation is common in pharmaceutical applications. It is important to perform extensive test on components and ingredients to ensure radiation endurance.
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Is the system heat/cold resistent?
ingredients to ensure radiation endurance. Is the system heat/cold resistent? The Bag-on-Valve aerosol generally stands heat and cold very well, but tests must be conducted on each individual product.
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What about recycling?
What recycling system to be used varies from country to country.The Bag-on-Valve system contains no flammable propellants, but a minor pressure remains in the can after emptying.
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Do I have to use certain cans and actuators with the Bag-on-Valve system?
No, standard aerosol cans and actuators can be used.
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What product sizes are suitable for Bag-on-Valve?
Sizes from 30 ml up to 500 ml are available as standard products.