Fuel Bladders: What They Do and How They’re Used

Fuel Bladder boat or a marine fuel bladder

Fuel bladders are created with industrial sewing technology and are key to smooth operations for many applications. It’s not just your car or lawnmower that needs gas in order to run. Everything that we currently use for locomotion and even power require a supply of fuel, usually some form of liquid, often based on petroleum. Just as you gas up your car, we gas up our generators, airplanes, and unmanned aerial vehicles (UAV). While usually this fuel is stored in tanks, sometimes a more flexible material needs to be used.

Why Not Use a Tank?

Most fuel storage that we know is accomplished through the utilization of solid tanks. Metal tanks are useful for many applications, as they are more durable and created for specific purposes, like a tanker truck, boat, or aircraft. Moving large amounts of fuel from one place to another, in cases where the logistics of that transportation allow it, those big metal tanks are the obvious choice.

But they’re not perfect, nor are they right for every implementation. For example, the fuel bladders like the kind made by VTI, specifically the kind installed on UAVs, is valuable specifically for reasons common to many fuel bladder implementations.

Reasons to Use a Fuel Bladder Instead of a Tank


The number one reason to use fuel bladders instead of tanks is the ability to move them from place to place easily and efficiently. Because fuel bladders are sewn out of modern industrial fabrics and high-tech coatings instead of rigid metal, they can be folded up and moved to wherever they’re needed. When empty, a fuel bladder takes up a fraction of the space it did when full. This portability enables people in remote locations, far from any infrastructure, to have the gas they need for generating power or as fuel for vehicles of all kinds.


Fuel bladders aren’t just flexible in the sense that they’re usable in lots of different cases and with many possible deployments (though they are those things, too). The primary characteristic of the fuel bladder is the material it’s made out of. By making a fuel container out of a variety of fabrics, usually coated in an elastic polymer. This coating allows the bladder to maintain its shape when filled, to prevent leakage, and to provide water-proofing.


By using a tank made out of fabric, users can much more easily swap the bladder out for a different one, for example. What was working before might not always work forever, so a different-sized bladder might be called for. The ability for users to change the size of their fuel bladders is one of the advantages that a solid steel product can’t match.

Vinyl Technology uses materials specially formulated for jet fuels and are lighter in weight than anything you’d get from the competition. The fuel bladder hardware (like access hatches and port fittings) is either welded directly to the film using VTI’s proprietary bonding process, or it may be over-molded onto the fittings and then RF-welded.

To find out what VTI can do for you, get in touch with us today.