The material chosen for plastic connectors should be based on the mechanical requirements of the connector and the type of media that will be moving through the system. Significant advantages and disadvantages need to be weighed in the selection of connector material. Mechanical properties, such as toughness, ductility, impact strength, transparency, lubricity, temperature capability, ozone resistance, and UV compatibility need to be assessed when selecting the most functional material for the application.
Careful consideration needs to be addressed to chemical compatibility and the most appropriate plastic resin for the application. Made of high-purity resin materials for use with aggressive chemicals found in most industrial and manufacturing plants, plastic connectors offer broad chemical compatibility. Many are manufactured from virgin resins, with accompanying certification of lot traceability.
A broad spectrum of plastic resins can be selected from to produce connectors, each with different characteristics to match the needs of system designers. These plastic resins are commonly used for producing connectors.
Polyethylene — chemically resistant, translucent or opaque thermoplastic with low temperature impact, which can withstand a variety of application environments.
Polycarbonate — hard, transparent thermoplastic with moderate chemical resistance. It provides good impact resistance and superior dimensional stability.
Polypropylene — soft thermoplastic that is highly resistant to chemical attack from solvents and chemicals in harsh environments.
Polyamide (nylon) — versatile thermoplastic with good wear and chemical resistance, low permeability to gases and performs well at elevated temperatures.
ABS — tough thermoplastic with good stiffness and impact resistance even at lower temperatures, as well as good dimensional stability and high temperature resistance.
Acetal — strong and lightweight thermoplastic that provides high strength and rigidity over a wide range of temperatures.
PTFE — fluoropolymer resistant to most chemicals and solvents, with stability at high temperatures.
PVDF — thermoplastic that is mechanically strong with good ductility over a broad temperature range, as well as having excellent chemical resistance.
After the most appropriate material for the production of the connector is determined, the type of connection that best suits the laboratory or industrial need can be assessed.