Sterilization Cases and Trays

Impact Strength, Steam Resistance and Transparency

Radel® polyphenylsulfone (PPSU) is an incredibly tough, transparent plastic that can withstand more than 1,000 cycles of steam sterilization without any significant loss of properties. This makes it an excellent choice for cases, trays and other reusable medical devices.

PPSU delivers higher impact strength than polycarbonate (PC) and polyetherimide (PEI) and retains its toughness and strength over time. It also offers superior chemical resistance, making it highly resistant to commonly used cleaners and disinfectants over a broad temperature range.

Key Features

  • High heat resistance
  • Superior impact strength
  • Withstands over 1,000 autoclave cycles
  • Excellent chemical resistance
  • ISO 10993:1
  • Transparent and opaque
  • Colors available


Virtually Unlimited Steam Sterilizability

Steam autoclaving is the primary sterilization method used for cases and trays. Temperatures typically range between 121°C to 134°C (250°F to 273°F) with exposure times of 15 to 30 minutes.

Radel PPSU is unique among amorphous thermoplastics in its ability to withstand more than 1,000 cycles of steam sterilization without any significant loss of properties. Its toughness and strength are retained over time, unlike polycarbonate (PC) and polyetherimide (PEI) which exhibit a significant loss of impact strength and becomes brittle.

Retention of impact strength



Cleaning & Disinfection

Radel PPSU is highly resistant to song solutions of aqueous caustic solutions like sodium hydroxide, which has become one of the preferred methods for sterilization against Creutzfeldt-Jakob disease.

Ingredients are often added to cleaners and disinfectants to improve surface wetting and reduce evaporation. Our experience has shown that these chemicals can have a more detrimental affect on plastics than cleaners and disinfectants by themselves. This is primarily due to improper dilution or insufficient rinsing. Be sure to follow the manufacturer’s instructions to optimize the performance of the plastic.

General Indication of Chemical Resistance Radel® 
General Chemicals
Alcohols Excellent Good
Acids, Concentrated Excellent Fair
Acids, Diluted Excellent Good
Bases, Concentrated Excellent Poor
Baes, Diluted Excellent Poor
Esters Fair Poor
Hydrocarbons, Aliphatic Excellent Poor
Hydrocarbons, Aromatic Fair Poor
Hydrocarbons, Chlorinated Fair Poor
Ketones Poor Poor
Hospital Disinfectants
Bleach Solutions, 10% Excellent Good
Cavicide® Excellent Good
Envirocide® Excellent Good
Cidex® Excellent Excellent
Hydrogen Peroxide, 3% Excellent Good
Isopropyl Alcohol, 70% Excellent Good
Manu-Klenz® Excellent Excellent
Phenols, 2% Excellent Good
Quaternaries Excellent Excellent
Sani-Cloth® HB Excellent Poor
Sani-Cloth® Plus Excellent Poor
Sporotal® 100 Excellent Excellent
Wex-Cide® Excellent Good

Customize Your Look with Color

Get the look you want and the performance you need. With Radel PPSU opaque and transparent colors, it’s easy to set yourself apart from the competition.

Opaque Colors 



Transparent Colors