PTFE 2.2 g / cm³
All the industry the widest working range of plastics (-260 ° C to + 260 ° C) have occurred in all the chemicals used in industry, humidity and ambient conditions to complete an infinite resistance, known in all the solidsIt occurs with minimum static and dynamic friction coefficient, excellent electrical insulation properties, adhesiveness, and heat resistance is used in the combustion fumes. Mechanical strength is poor and has a very low coefficient of friction. So in the guidance system and bushes against the smooth surface it gives very good results.