What is Saflex PVB?
PVB is the short-hand designation for plasticized Poly Vinyl Butyral (PVB) sheet. It is formed by combining PVB resin with a plasticizer (and other proprietary ingredients) and forming the mixture under heat and pressure into a thin sheet. This interlayer, provided in roll form, possesses unique properties necessary for superior encapsulation of photovoltaic (PV) modules.