PPS / Ryton® Coating Services

Ryton’s PPS coatings key characteristics include:

• Chemical resistance
• Abrasion & Wear Resistance
• Corrosion Resistance
• Heat Resistance

Benefits of PPS Coatings

Below are some of the benefits of using PPS coatings for your project include:

• Thermal Stability: A remarkable combination of both long-term resistance to temperatures up to 200°C (392°F) and short-term resistance to temperatures up to 260°C (500° F)
• Dimensional Stability: Even complex parts could be molded with very tight tolerances and will maintain dimensional stability even at elevated temperatures and in harsh chemical environment
• Chemical & Corrosion Resistance: PPS coatings are resistant to a wide variety of solvents and corrosive chemicals even at elevated temperatures. Some of the types of resistance include acids, heat, alkalies, mildew, aging, sunlight and bleaches. Unlike Halar ECTFE or ETFE, PPS coatings are one of the few effective thin-film polymers that provide chemical and corrosion resistance.
• Abrasion & Wear Resistance: PPS provides excellence resistance to abrasion and wear even in the harshest environments including chemical processing and automotive.
• Inherent Flame Retardancy: All Ryton® PPS compounds have UL94 V-0 flammability ratings without flame retardant additives
• High-Performing Thin Films: PPS coating can be applied at the desired thickness your project needs and can be added as a top-coat or primer. The typical thickness of PPS coatings range from under 1 – 2 mils.

Polyphenylene sulfide (PPS) coating is a polymer made up of alternating sulfur atoms and phenylene rings in a para substitution pattern. The highly stable chemical bonds of its molecular structure impart a remarkable degree of molecular stability toward both thermal degradation and chemical reactivity. The molecular structure also readily packs into a very thermally stable crystalline lattice, hence PPS is a semi-crystalline polymer with a high crystalline melting point of about 285°C (545°F). Because of its molecular structure, PPS also tends to char during combustion, making the material inherently flame retardant. PPS has not been found to dissolve in any solvent at temperatures below about 200°C (392°F).

When blended with glass fibers and other fillers, PPS produces engineering plastics having a unique combination of properties.

Unique Combination of PPS Properties

• A remarkable combination of both long-term and short-term thermal stability
• Exceptionally high modulus and creep resistance
• Outstanding resistance to a wide variety of aggressive chemical environments
• Precision molding to tight tolerances with high reproducibility
• Inherent non-flammability without flame retardant additives
• Dielectric and insulating properties stable over a wide range of conditions

PPS Coating Applications & Industries

These coatings can benefit many industries that demand extreme resistant for their coatings. Some of these industries include the following:

• Automotive – Ryton PPS coating is ideal for the automotive industry because of the high temperature and corrosion resistance. Some of the typical PPS coating applications include water pump impellers, thermostat holder, electric brakes, fuel injection systems and coolant systems.
• Chemical Processing – The chemical processing industry benefit from using PPS coating because of their chemical resistance and high temperature properties. Some of the common PPS coating applications for this industry include molds, driers, valves, stirrers, gears and reactor linings.
• Commercial Cookware – It’s important for the coatings the applicance and cookware industry use are low density and corrosion resistance which is why PPS coatings are an ideal option. The typical applications for the commercial cookware industry include fry pan handles, toaster, microwave oven and more.
• Industrial – PPS coatings are used frequently in the industrial space to be applied to heavy industrial applications. Due to it’s non-stick and chemical resistant properties, it’s an ideal coating for many industrial applications. These applications can be used in machine construction, oil & gas and HVAC industries.
• Medical & Healthcare – The PPS coatings are formulated to provide strength and heat resistance to glass medical instruments.

Contact Delta Coatings & Linings today to learn more about our Ryton PPS coating services.