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Two silicone leather samples can look identical on the face and behave completely differently in production. The variable is usually the backing. This guide compares the four constructions we supply most often, in terms of what each one does to the sheet rather than what it is made of.
A microfibre non-woven backing gives the material a hide-like body. It holds an embossed grain after cutting, resists edge curl, and takes stitching and stapling without tearing out. If the part is sewn, wrapped around a frame or sat on, microfibre is normally the starting point. See microfibre silicone leather.
Polyester film gives a uniform gauge across the roll and does not absorb moisture, so panels stay flat as humidity changes. It is the right choice for lamination, flat cladding and wrapping rigid profiles, and the wrong choice for deep draw or heavy pleating. See PET silicone leather.
PC backing adds stiffness and impact resistance, so the laminate behaves like a thin structural panel. It is specified where the finished part is a self-supporting shell or cover rather than a skin over something else, and where a formed crease has to stay formed. See PC silicone leather.
Woven glass cloth carries load in both directions, so large panels stay true and the sheet resists elongation. The trade-off is stiffness: glass-backed material is used flat or in simple curves, and cut edges need trim. See glass fibre silicone leather.
Backing choice cannot be confirmed from a photo. Send the part drawing or a physical sample, the process you will use (sew, wrap, laminate, form), the panel size and the flatness or stretch tolerance you must hold. With those four facts the construction can be narrowed to one or two options, and samples issued for trial.
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