First the âDâ or the âP85D,â which is the highest performance, dual-motor version of the Model S that has the 85 kwh battery. Tesla CEO Elon Musk didnât mention the price onstage and Tesla has yet to send out any specs (at least to me) on it. So.
Mylar, also known as BoPET (Biaxially-oriented polyethylene terephthalate) is a polyester film made from stretched polyethylene terephthalate (PET) and is used for its high tensile strength, chemical and dimensional stability, transparency, reflectivity, gas and aroma barrier properties, and electrical insulation.
Mylar and other drafting films have been in use for decades. They have some advantages over paper: 1) Dimensional stability - they don't react to changes in humidity like paper does. They also tend to stay flat and don't stretch or shrink. 2) Strength and durability - drafting film can be written on and erased more times than paper which tends to wear through. Eventually the textured surface can get polished and loose tooth, but you don't get holes in it. 3) Erasability - since the material is non-pervious, the ink does not soak into the fibers and can be more completely erased.