Hello, Unfortunately, this result is due to an irreversible chemical reaction: acetone is a solvent that dissolves the structure of the synthetic coating on faux leather (PU or PVC). Unlike genuine leather, faux leather can't be cleaned with this product it literally melts as you can see on the t...

I used acetone to remove a pen mark on faux leather (which usually works great on fabric!), but it's a disaster the top layer has melted. What should ? I do please help !

Hi there. Chamfer is not because the springs, chamfer is here to be able to place the tacks attaching the hessian, so the question is will you use foam or traditionnal fibers ? If you're using traditionnal methods all the way long YES you will need it.