The manufacturing process does not use any chemical substances, additives or ingredients of animal origin nor do TPP products come in contact with animal products during storage and transportation.
TPP products are free from BSE (Bovine Spongiform Encephalopathy) and TSE (Transmissible Spongiform Encephalopathy).
Heat resistance | ||||
| Polyethylene | Permanent loading: 70 - 80 °C / 158 - 176 °F (short term max 100 °C / 212 °F), cannot be autoclaved | |||
| Polypropylene | Permanent loading: 100 - 110 °C / 212 - 230 °F, (short term max 140 °C / 284 °F), can be autoclaved | |||
| Polystyrene | Permanent loading: 60 - 70 °C / 140 - 158 °F, (short term max 80 °C / 176 °F), cannot be autoclaved | |||
 | ||||
Low temperature resistance | ||||
| Polyethylene | -40 °C / -104 °F | |||
| Polypropylene | -190 °C / -374 °F | |||
| Polystyrene | -40°C / -104 °F | |||
| ||||
Optical Properties | ||||
| Polyethylene | translucent to opaque | |||
| Polypropylene | translucent, shiny surface | |||
| Polystyrene | transparent, shiny surface with 90 % transparency index at 400 - 800 nm | |||
| ||||
Mechanical Properties | ||||
| Polyethylene | low tensile strength and surface hardness; high ductility at soft and harder levels; low resistance to stress cracking; water repellent; susceptible to electrostatic charging | |||
| Polypropylene | high fracture strength; dimensionally stable; high stiffness, strong and hard | |||
| Polystyrene | low fracture ductility; low warm strength; excellent electrical insulation properties; not suitable for use at high centrifugal loads | |||
| ||||
Chemical Resistance | ||||
| Polyethylene | exhibits high resistance; dilute acids, alkalis, alcohol; oil and salt solutions do not attack, concentrated and oxidising acids such as nitric acid and the halogens, lead to disintegration | |||
| Polypropylene | high resistance to aqueous solutions of organic salts, acids and alkalis, as well as to organic solvents up to 60 °C; stable in alcohols, esters and ketones; aromatic and halogenated hydrocarbons, oxidising substances such as concentrated nitric acid and at higher temperatures, fats, oils and waxes all lead to swelling | |||
| Polystyrene | high resistance to salt and caustic solutions, non-oxidising acids, alkalis and alcohols. Petroleum spirit, ethereal oils, strongly oxidising agents and aromatic attack and give rise to stress cracking | |||
| ||||
Disposal | ||||
| PE / PP / PS | all raw materials are pure hydrocarbon compounds and therefore neutral to the environment. No harmful substances are generated during controlled burning. | |||
| ||||
