PP (Polypropylene) is a polyolefin available in as homopolymer and co-polymer. PP has superior resistance to sulfur-bearing compounds and is capable of withstanding a wide range of corrosive and sanitary effluents. PP is more resistant to organic solvents than other common plastic pipe materials . PP is only slightly less rigid than PVC.
Chemical resistance of polypropylene and common products and chemicals:
|20 oC |
|60 oC |
|Hydrobromic acid 25 %||2||3|
|Phosphoric acid 25 %||1||1|
|Phosphoric acid 85 %||1||1|
|Nitric acid 5 %||2||3|
|Nitric acid 65 %||4||4|
|Chlorhydric acid 10 %||1||1|
|Chlorhydric acid 37 %||2||3|
|Sulphuric acid 10 %||1||1|
|Sulphuric acid 78 %||2||4|
|Sulphuric acid 93 %||3||4|
|Acetic acid 10 %||1||1|
|Acetic acid 50 %||1||1|
|Acetic acid 75 %||1||1|
|Acetic acid 100 %||2||3|
|20 oC |
|60 oC |
|Acid salt 2)||1||1|
|Basic salt 3)||1||1|
|Neutral salt 4)||1||1|
Organic Substances, Solvents
|20 oC |
|60 oC |
|Methyl ethyle ketone||3||4|
|Sulphur dioxide (damp)||2||3|
|Sulphur dioxide (dry)||2||3|
- Excellent (no attack)
- Good (no significant attack)
- Acceptable (light attack, limited use)
- Unacceptable (significant attack)
- Inferior (possible cracking or dissolving)
2) Acid salt (normally aqueous) aluminum chloride, aluminum phosphate, copper chloride, sulphate of copper, ferrous sulphate, ferric chloride, stannic chloride, chloride of zinc, white vitriol etc
3) Basic salt (normally aqueous) bicarbonate of potassium, potash, sodium bicarbonate, sodium carbonate, sodium phosphate etc.
4) Neutral salt (normally aqueous) calcium chloride, calcium nitrate, calcium sulphate, magnesium chloride, nitrate of potassium, potassium sulphate, sodium chloride, sodium nitrate, sodium sulphate etc.
Corrosion in piping systems caused by thermodynamic and electrochemical processes - corrosion problems and methods of protection and prevention.
Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
Online calculator, figures and tables showing density and specific weight of acetone at temperatures ranging from -95 to 275 °C (-138 to 530 °F) at atmospheric and higher pressure - Imperial and SI Units.
Dimensions of pressure rated PP pipes according ASTM F2389.
Chemical resistance of thermoplastics like ABS, CPVC, PP, PVC, PE, PB, PVDF and PEX piping materials to chemicals and products ranging beer, acryl acid, diesel oil and many more.
Chemical resistance of CPVC - Chlorinated Poly (Vinyl Chloride) - to common chemicals and products.
Plastic piping systems for soil and waste discharge (low and high temperature) within the building structure.
Chemical resistance of Epoxy to common products like Acetic acid, Alcohol, Diesel oil and more.
Common metals and their corrosion resistance to aggressive fluids like acids, bases and more.
Chemical resistance of Polyethylene - PEH - to common products.
Friction head loss (ft/100 ft) vs. water flow in plastic pipes like PVC, PP, PE or PEH.
Chemical resistance of Polyester to products like Acetic acid, Diesel oil and others.
Chemical resistance of Polyurethane (PUR).
Maximum distance between PolyPropylene pipes supports.
Chemical resistance of Polyvinyl Chloride PVC.
Rsistance to chemicals - solvents and softeners - swelling properties.
Chemical resistance of silicone.
Density and specific weight of liquid toluene.
Chemical resistance of Vinyl Ester to products as Acetone, Alcohol, Diesel oil and more.