Structural Polyurethane Foam

[Yongwd]

Hello all gurus and experts .....

 

Is there anyone using polyurethane foam to improve your vehicle chassis rigidity dynamically? I'm thinking if the chemicals can be bought off shelves and DIY instead? Hope someone can enlighten me.

 

 

http://www.junauto.co.jp/products/reinforc...t/index.html?en

[Elfenstar]

Don't know anything abt that, but what car are u driving? There are many aftermarket chassis braces for factory performance vehicles. There are also options like seam welding and pop riveting the chassis and frame to increase rigidity.

[Yongwd]

I think depending on the position of these chassis braces or strut bars, these products only do locallised improvements in body strength and not the entire frame to reduce twisting and bending. Spot welding does improve the body strength but the welding operation is extremely labor intensive (cost factor). Riveting has nearly no improvement in body strength (may even reduce)

[Chisiang]

It was popular a few months ago but then think was just a fad.

 

Some points to take note when injecting these foam is that it is extremely difficult to judge and provide equal and uniform injection for left and right side of the car. As such, with a un-uniform rigidity, the side that receives the lesser foam will take most of the stress which will result in further chasis twist or even damage.