Redesign indicator for car explosion prevention system

Hello, did anyone here heard of Deto-Stop Explosion Prevention system? I have several question to ask here.

Brief Explanation

It is proprietary aluminum alloy mesh fuel tank filler that prevents explosions by absorbing the heat from a propagating flame wave. The mesh is something like a mesh ball, and those balls are being filled 90% of the fuel tank but just use 3% of the fuel tank volume. It's invented in German after 15 years of research. But, the additions of those balls into the fuel tank will obstruct the pivoting mechanism of the fuel indicator float inside the fuel tank.

Question
1. Do you think explosion prevention system is necessary? Is it important?
2. Is there any explosion prevention system other than Deto-Stop prevention system? Which are they?
3. If this kind of explosion prevention system have been redesign either the indicator or other features, will you buy it and use it?
4. How much of indicator which suit for the explosion prevention system you are willing to buy?
5. Is it necessary to redesign the indicator for this explosion prevention system?

I don't see the need to redesign the fuel guage sender. It can simply be enclosed in a mesh tube of it's own.

If I have an 80l tank which has 3% of it's volume taken up by aluminium mesh, then that's 2.4l.
2.4l of aluminium at 2.7g/cc is about 6.5kg of extra weight.

I don't know anyone who's had a car explode, so I wouldn't be interested in purchasing the system.

what's the need for it?

it if offered any advantage over current technology it would be used.

however, high-risk applications like racing employs the "rubber bladder" fuel tank, to prevent damage in a crash.

Gas tanks very, very rarely explode.
Its actually very hard to get the right mix of fuel and air to create a violent explosion. To start with liquid petrol will not burn. It will only burn in a gaseous form.
This is one of the first things they teach at any fire fighting course.

Fuel can certainly burn in a car fire, but its only ever really dangerous if its spilled out of the fuel tank. If its contained in the tank its a lot safer.



It may have a valid application in other forms of transport, with more volatile fuels.
For example jet aircraft, or methenal burning race cars, but even then the fuel is only dangerous if its allowed out of the fuel tank.