What is the distinguishing feature of acrylic? Why is everyone use it to do the packing

Question: what is the distinguishing feature of acrylic? Why is everyone use it to do the packing? Answer: because 1. Hardness: hardness is the most can reflect casting acrylic board, one of the production process and technical parameters is an important part of quality control. Hard degree of acrylic lampshade can reflect the material PMMA sheet purity, weatherability and high temperature resistance, etc. Hardness will directly affect the plate bending deformation shrinkage, cracked surface will appear when processing, and so on and so forth. Hardness is to judge the force that press a gram board quality hard indicator, an average of rockwell hardness value of about 89 degree. 2. Sheet thickness tolerance: thickness tolerance control is the important of quality management and production technology. Acrylic production has an international standard ISO7823 pouring plate tolerance requirements: tolerance = & plusmn; ( 0. 4 + 0. The thickness of the 1 x) Extrusion plate tolerance requirement: tolerance = & lt; 3 mm thickness: & plusmn; 比10%; 3 mm thickness: & plusmn; 5% 3. Transparency/whiteness: strict raw material selected, advanced modern production technology and the formula to follow up production, ensure that plank excellent transparency and pure white. After the flame polishing crystal clear.