MATERIALS FOR CORROSIVE ENVIRONMENTS

Performance Begins with Chemical Compatibility.

Chemical processing components may face acids, alkalis, solvents, cleaning agents, elevated temperatures, pressure and repeated mechanical movement.

Engineering plastics can provide corrosion resistance, lower weight, electrical insulation and useful wear properties in selected pumps, valves, fluid-handling assemblies and processing equipment.

ZERO supplies semi-finished rods and sheets for CNC machining. Compatibility must be checked against the exact chemical, concentration, temperature, stress and exposure time.

CHEMICAL PROCESSING REQUIREMENTS

Properties That Guide Material Selection.

No single plastic resists every chemical under every condition. Evaluate the complete process environment.

Chemical Compatibility

Match the polymer and grade to the exact media, concentration and exposure conditions.

Temperature Capability

Account for continuous temperature, cleaning cycles and combined chemical-temperature effects.

Mechanical Strength

Support pressure, clamping, structural loads and repeated operating cycles.

Wear & Friction

Consider sliding surfaces, shafts, valve movement and abrasive process media.

Low Moisture Uptake

Support dimensional control in wet, humid or continuously immersed environments.

Precision Machinability

Produce sealing features, flow paths and controlled dimensions from stock shapes.

TYPICAL COMPONENTS

Machined Parts for Fluid and Process Equipment.

These examples illustrate possible uses. Final material and component design must be validated for the specific process.

01 / PUMPS

Pump Components

Selected wear rings, sleeves, guides and structural parts for fluid equipment.

02 / VALVES

Valve Seats & Components

Machined seats, guides and internal parts for selected chemical service.

03 / SEALING

Seals, Rings & Gaskets

Machined sealing profiles where chemical, thermal and wear conditions permit.

04 / MOTION

Bushings & Bearings

Low-friction supports for shafts and moving process-equipment assemblies.

05 / FLOW

Manifolds & Flow Blocks

Machined channels and distribution components from suitable sheet or block stock.

06 / EQUIPMENT

Structural & Insulating Parts

Supports, spacers, guides and plates within chemical-processing equipment.

CHEMICAL PROCESSING FAQ

Before Selecting a Chemical-Resistant Plastic.

These answers provide general guidance. Final compatibility must be verified for the exact grade and process.

There is no universally best material. PVDF, PEEK and PPS are common starting points for demanding chemical environments, but compatibility depends on the exact chemical, concentration, temperature and stress.

No. Charts are screening tools. Real performance can change with temperature, pressure, mixtures, residual stress, duration and part geometry. Application testing may be required.

PVDF may be considered for selected corrosive-fluid and high-purity systems where its chemical resistance, weatherability and low moisture absorption match the process requirements.

They may be evaluated where chemical resistance must be combined with higher temperature capability, stiffness or mechanical performance.

Please provide the chemical or mixture, concentration, temperature, pressure, exposure time, mechanical load, component drawing, required stock dimensions, quantity and applicable standards.