Materials | Plastics, aluminium and metals | Exten B.V.

Plastics

Processed via injection moulding, machining from sheet and block and vacuum casting, depending on quantities and geometry.

ABS

Versatile enclosure material: tough, easy to mould and to finish with paint or galvanic layers.

POM

Dimensionally stable, low-friction and wear-resistant. The standard for sliding parts, gears and precision components.

PMMA

Optically clear and polishable. For light guides, covers and visible parts, also machined from thick sheet.

PP

Chemically resistant, tough and light. For parts in humid or aggressive environments and hinging functions.

Glass-filled plastics

Increased stiffness and strength for structural parts; attention to tool and mould wear.

Other engineering plastics

Per application we also advise other engineering plastics, matched to temperature, load and standards requirements.

Aluminium

Light, strong and a good thermal conductor. Processed via CNC milling for prototypes and small series, and via die casting for repeatable series.

Finishes such as anodising, powder coating and textured paints determine corrosion resistance and appearance.

Other metals

Steel, stainless steel and other technical metals we organise where strength, wear resistance or corrosion resistance demand it, via machining, sheet processing or casting.

The specific alloy and route are matched per project to load, environment and cost.

Material choice is a production choice

The same part can be milled in POM, moulded in ABS or cast in aluminium; the right choice depends on load, quantities and budget. That is why we treat material and process as one decision, substantiated in the Engineering & DFM review. Want to test a prototype in the real material first? See final-material prototyping.

Material detail: textured black coating on aluminium
Material and finish together determine the end result