Eastman™ Chlorinated Polyolefin 343-1 (40% solids in xylene) is 18-23 wt. % chlorine and has a Gardner color value of 8. Chlorinated Polyolefin 343-1 (40% solids in xylene) is a gel or viscous liquid at room temperature and can be liquefied by warming to 38 degrees C with agitation. CP 343-1 has good resistance to high temperatures. It can withstand 110 degrees C for 20 minutes and a thermogravimetric analysis suggests it will withstand appreciable higher temperatures.