AMORPHOUS POLYOLEFIN (APO/APAO)

Amorphous polyolefin (APO/APAO) hot melts have good fuel and acid resistance, moderate heat resistance, are tacky, soft and flexible, have good adhesion and longer open times than crystalline polyolefins. APOs tend to have lower melt viscosity, better adhesion, longer open times and slow set times than comparable EVAs. Some APOs can be used alone, but often they are compounded with tackifiers, waxes, and plasticizers (e.g. mineral oil, poly-butene oil).APAOs have good adhesive properties to polar surfaces and are resistant to high and low temperatures. They melt in a temperature range from 100 to 160 °C.