PET片材的克重和价格计算
PET sheets/films are widely used in the custom paper boxes to constitute the clear window, also referred to the clear window paper box. In this article, we will talk about how to calculate the grammage and price of the PET sheets.
The density of PET is constant, 1.38 g/cm3 (20 °
PET密度：1.38 g/cm3 (20 °
volume =100*100*0.1/10=100cm3 ;
10丝PET克重（0.1mm厚度）： 100*1.38=138gsm;
20丝PET克重（0.2mm厚度）：128*2=276gsm;
30丝PET克重（0.3mm厚度）：128*3=384gsm;
Therefore, theoretically the 0.2mm thick PET sheet has the grammage 276gsm;
The cost of the PET is usually priced at RMB14，800/t.
PET吨价：14800元。
10丝PET价格：138*14800/1000000=RMB2.0;
20丝PET价格：RMB4.0；
30丝PET价格：RMB6.0;
在淘宝上，100张大度PET（带双面防尘保护膜）的含运费价格大概在750元。
In theory, the per square cost of 0.2mm thick PET sheet wold be 0.6USD.
But in practice, a lot of other fees would be involved to produce the PET sheet. In reality, the per square cost of 0.2mm PET sheet is around 1.2USD.
As A Good China paper box manufacturer and supplier, China BBP Co., Ltd is a China medium-sized custom paper box manufacturer and packaging solution provider with facilities around 80,000 square meters in total. The company exclusively specializes in the supply and export of the custom paper boxes, including the paper printed box, corrugated printed box, cosmetic paper box, rigid paper box, cardboard gift box and custom paper bag. If you have any questions about the custom paper box, or would like us to give you a price quote, please do not hesitate to contact us by giving us an email.