PP - Polypropylene

The mechanical features of PP are better than those of PE H.D. It withstands attack by alkali and acids and consequently it is widely used for components in the chemical industry when a moderate stress material is required. 


FEATURES 

Chemical: high chemical resistance.
Tensile stress: very high among the polyolefins.  
Low specific gravity.
Easy machinability on mechanical tools. It can be welded.
Good stability to temperature. 
Colour: beige-grey RAL 7032 and natural


WEAK POINT
 
Compared to the engineering plastics it has low thermal and mechanical properties: tensile stress, flexural and compressive strength, etc. Compared to PE it is more rigid but less shock resistant.


APPLICATION

Mechanical: it is also used for mechanical components in corrosive environments. It has a higher tensile stress than H.M.W. PE. 

Food contact: it is physiologically inert, so in natural form, it is approved for use in contact with food.
 
Electrical: good dielectric properties. Weather stability is its best feature for this application. 

Chemical: the widest application field for PP is the chemical industry. Thanks to its high resistance to acids and alkali and its higher temperature resistance than PVC, it is used for components in the chemical, galvanic and petrochemical industries to produce valves, flanges, gears, etc.  

Temperature resistance of the "anti-acid materials"