Material guide
What is cast nylon (kestamit)? Properties, grades and applications
What is cast nylon (PA6G, known in Türkiye as kestamit), which properties make it an alternative to metal, and which machine parts is it used for?
Technical guides
Cast nylon and engineering plastics blog
We share what we have learned since 2004 about material selection, part design, CNC machining and export.
Material guide
12 articlesMaterial guide
What is cast nylon (kestamit)? Properties, grades and applications
What is cast nylon (PA6G, known in Türkiye as kestamit), which properties make it an alternative to metal, and which machine parts is it used for?
Material guide
Cast nylon (PA6G) vs extruded nylon (PA6): the differences
Crystallinity, internal stress, size and cost differences between PA6G cast nylon and extruded PA6. Which one should you choose for which part?
Material guide
Cast nylon or POM (acetal)? Choosing the right material
Cast nylon (PA6G) vs POM-C compared: wear, moisture absorption, dimensional stability and real applications. Which material for which part?
Material guide
Cast nylon vs PE-1000 (UHMW): which wears better?
Wear, friction, temperature and strength differences between cast nylon (PA6G) and PE-1000 UHMW polyethylene, for chain guides and linings.
Material guide
Cast nylon (PA6G) technical data: the values and what they mean
Cast nylon technical data explained: what density, tensile strength, hardness, temperature, thermal expansion and friction values mean for designers.
Material guide
Cast nylon colours and grades: natural, yellow, blue, black, oil-filled and MoS₂
What do cast nylon colours mean? Differences between standard PA6G, oil-filled cast nylon, black MoS₂-filled and heat-stabilised grades, and where to use them.
Material guide
What is oil-filled cast nylon and when should you use it?
How does oil-filled cast nylon (oil filled PA6G) reduce friction? Benefits and selection criteria for unlubricated bearings, bushings and slides.
Material guide
MoS₂-filled black cast nylon: benefits for sliding and wear
What is molybdenum disulphide (MoS₂) filled black cast nylon? How sliding, wear and applications differ from standard PA6G.
Material guide
Water absorption of cast nylon and dimensional change: how to design for it
Water absorption of cast nylon (PA6G): how much water it takes up, how much its size changes, humid service, parts in water and design advice.
Material guide
Engineering plastics in the food industry: PE-500, PET, POM and cast nylon
Which engineering plastics are used in food and packaging machinery? Options with PE-500, PET, POM and food-grade cast nylon, and what to watch for.
Material guide
What is PTFE (Teflon) and where is it used?
Chemical resistance, low friction and high temperature properties of PTFE (polytetrafluoroethylene, Teflon) for gaskets, seals and insulating parts.
Material guide
PEEK: the engineering plastic for high temperature and load
PEEK (polyether ether ketone) properties and uses: service from −60 to +250 °C, high strength, chemical resistance. Compared with cast nylon.
Parts and applications
11 articles
Parts and applications
Choosing cast nylon sheet: thickness, size and surface
How to choose thickness, sheet size, surface and cut-to-size options when buying cast nylon sheet. A practical guide for wear plates and slides.
Parts and applications
Making gears and pulleys from cast nylon rod
Making gears, pulleys, sheaves and wheels from cast nylon rod: diameter selection, machining allowance and the benefits of cast nylon over metal.
Parts and applications
Cast nylon tube: the cost advantage for large bushings and rings
How does using cast nylon tube instead of solid rod for large bushings, rings and sheaves cut waste, material cost and machining time?
Parts and applications
Cast nylon crane and rope pulleys: advantages over steel sheaves
Benefits of cast nylon for crane and rope pulleys: rope life, weight, noise and maintenance. Production of cast nylon pulleys with bearings.
Parts and applications
Cast nylon gears: quiet gears that run without grease
When should cast nylon gears replace steel gears? Noise, lubrication, module choice and the key points of plastic gear design.
Parts and applications
Cast nylon bushings and plain bearings: design and material choice
Designing cast nylon bushings and plain bearings: clearance, thermal expansion, lubrication and advantages over bronze bushings.
Parts and applications
Extending equipment life with cast nylon wear plates
What is a cast nylon wear plate and where is it used? Material and design choices for drilled, countersunk and cut-to-size wear plates.
Parts and applications
Slide pads for construction equipment: telescopic boom care with cast nylon
Why are cast nylon slide pads used in backhoe loaders and telescopic handlers? Sizes, material and spare part supply.
Parts and applications
Cast nylon in conveyor systems: chain guides, rollers and side rails
Using cast nylon and PE-1000 in conveyors: material choice for chain guide profiles, rollers, side rails and sprockets.
Parts and applications
Cast nylon in port and crane equipment: pulleys, pads and slides
Using cast nylon in port, crane and lifting equipment: rope pulleys, crane outrigger pads, slides and resistance to salt water.
Parts and applications
Cast nylon rolling mill bearings in steel plants
Using cast nylon bearings in rolling mills: shock absorption, wear resistance, lubrication and advantages over bronze bearings.
CNC and production
5 articlesCNC and production
CNC machining of cast nylon: practical tips for turning and milling
CNC machining cast nylon (PA6G) on lathes and mills: practical advice on tooling, clamping, cooling, burrs and dimensional checks.
CNC and production
Tolerances for plastic parts: the effect of thermal expansion and moisture
Tolerances for plastic parts in cast nylon and engineering plastics: thermal expansion calculation, moisture effect and practical clearance rules.
CNC and production
What your drawing should include for a plastic part quotation
What your drawing needs for a fast plastic part quote in cast nylon or engineering plastics: file format, material, quantity and tolerances.
CNC and production
From sample to series: how cast nylon spare parts are produced
Six steps from drawing to series production for cast nylon spare parts: quotation, sample approval, series production, quality control and shipping.
CNC and production
Replacing metal parts with cast nylon: weight, cost and maintenance benefits
Replacing metal parts with cast nylon: benefits and limits for bronze, steel and aluminium parts. Which parts should be converted and which not?
Export
2 articles
Export
Importing engineering plastics from Türkiye: an Incoterms guide
What do EXW, FCA, FOB, CFR, CIF and DAP mean when importing cast nylon and spare parts? A practical Incoterms guide for buyers.
Export
Export packing and documents: EUR.1, A.TR and certificate of origin
Palletising, ISPM-15 wooden packaging, labelling, commercial invoice, packing list, EUR.1, A.TR and origin documents for cast nylon and spare part exports.
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