material selection

Exclusive Packaging Material Failure Map Reference Standard: Relevant material and performance testing standards, including ASTM D1693 environmental stress-cracking evaluation and general plastic material identification guidance from UL Prospector. Short Answer The main types of packaging materials in this catalog are PE, PET, and PP, but their risks do not appear at the same moment. A sample may look acceptable on a desk, while filling temperature, formula chemistry, decoration adhesion, neck tolerance, or packing abrasion later expose the wrong material choice. When The Wrong Packaging Material Looks Correct On The First Sample A buyer reviewing types of packaging materials often starts with the wrong evidence: appearance. A clear PET bottle, a … 続きを読む