PP tubes, such as Caplugs Evergreen Test Tubes, are ideal for a range of general lab applications. Due to the chemical resistant nature of the material, these particular round bottom tubes are a more appropriate option for use with organic solvents and stronger acids (except oxidizing acids). They’re also a good choice from applications using alkalis, alcohols, chlorinated and aromatic hydrocarbons (except xylene), and ketones.
The PP round bottom test tubes that Delta stock can withstand up to 10,000 x g. Caplugs Evergreen Test Tubes also offer more sizes than any other manufacturer, so you don’t have to compromise for any application.
What is Polypropylene and why is it used?
Polypropylene (PP) is a thermoplastic ‘addition polymer’ which is made from a combination of propylene monomers. First polymerized in 1951, the material rose to prominence extremely quickly. PP is a versatile plastic and so is a popular choice for many applications, especially for use in test tubes.
PP is used in both household and industrial applications due to its desirable characteristics. Here are a few of the main ones:
- Chemical resistance
- Fatigue resistance
- Insulation
- Elasticity and toughness
- Transmissivity
- Tough
- Integral hinge property
- Semi-rigid
- Translucent
For more information on Delta’s range of pp test tubes, or any other variety of tubes and caps, please speak to a member of the team.