CNC Machining Engineering Plastics in Singapore
High-performance engineering thermoplastics and thermoset laminates machined to tight tolerances. Cleanroom cleaning, assembly, and vacuum packaging available for semiconductor and medical applications.
| Material | Common grades | Machinability | Used in | Finishes |
|---|---|---|---|---|
| POM (Delrin/Acetal)High stiffness, high accuracy, low friction, easy to machine. | Homopolymer (Delrin), Copolymer (POM-C), Glass-filled POM | POM is the best-machining engineering plastic: stiff, dimensionally stable, and it cuts to clean edges and fine finishes much like brass. | Automotive, Medical, Semiconductor | Machined finish, Bead blasting, Annealing |
| NylonExcellent mechanical properties, thermal, chemical and abrasion resistant. | PA66, Cast PA6, Oil-filled / MoS2-filled nylon, Glass-filled nylon | Nylon is the tough one: it absorbs impact and abrasion that would crack harder plastics, which makes it the choice for gears, sprockets, wear pads, r… | Automotive, Oil & Gas | Machined finish, Annealing, Moisture conditioning |
| PPSUPPSU is an amorphus material, with high glass transition temperature and low moisture absorption. | Radel R-5000 series, Medical / bio-compatible grades | PPSU's claim to fame is surviving repeated steam sterilization: it withstands over a thousand autoclave cycles without crazing or losing toughness, w… | Medical, Semiconductor | Machined finish, Annealing, Bead blasting |
| ABSCommon thermoplastic, impact resistant, easy to machine. | Machine-grade ABS, Flame-retardant ABS (UL94 V-0) | ABS is the prototyping workhorse: economical, tough enough for handling, and easy to machine, bond, paint and vapor-smooth. | Automotive, Medical | Painting, Bead blasting, Solvent bonding |
| PEEKHigh-performance thermoplastic, very high strength, thermal and chemical resistant. | Unfilled PEEK, Glass-filled PEEK (GF30), Carbon-filled / bearing-grade PEEK, Medical-grade PEEK | PEEK sits at the top of the engineering-plastics pyramid: continuous service at 250 °C, outstanding chemical and wear resistance, inherent flame perf… | Semiconductor, Medical, Automotive, Oil & Gas | Annealing, Machined finish, Cleanroom cleaning & packing |
| PTFE (Teflon)Low friction, chemical and thermal resistant. | Virgin PTFE, Glass-filled PTFE (15–25%), Carbon / graphite-filled PTFE | PTFE is chosen for three superlatives: the lowest friction of any solid plastic, near-total chemical inertness, and electrical insulation that holds… | Semiconductor, Oil & Gas, Medical | Machined finish, Deburring and edge control |
| PolycarbonateHigh toughness, excellent impact strength, transparent. | Standard clear PC, Glass-filled PC, FDA / medical-grade PC | Polycarbonate is transparency with toughness: roughly 250 times the impact resistance of glass. | Optics, Medical, Automotive | Edge and surface polishing, Annealing, Bead blasting |
| PolyethyleneExcellent strength-to-weight ratio, impact and weather resistant. | HDPE, UHMW-PE, Food-grade / detectable UHMW | Polyethylene spans two useful characters: HDPE, the economical, chemical-proof general-purpose plastic; and UHMW-PE, whose enormous molecular weight… | Automotive, Medical | Machined finish, Deburring |
| PVCExcellent chemical and weather resistance and good toughness. | PVC Type 1 (rigid), CPVC | Rigid PVC is the economical chemical-handling plastic: excellent resistance to acids, bases and salt solutions, inherently flame retardant, easy to s… | Semiconductor, Oil & Gas | Machined finish, Solvent bonding |
| PMMA (Acrylic)Transparent rigid plastic often used as a substitute for glass. | Cast acrylic, Extruded acrylic, UV-transmitting / optical grades | Acrylic is the optical plastic: 92% light transmission (clearer than glass) with good UV stability and scratch resistance among plastics. | Optics, Medical | Mechanical polishing, Vapor polishing, Annealing |
| PETTough plastic that offers excellent wear resistance and mechanical strength. | PET-P (Ertalyte), PET-P TX (PTFE-filled) | Machining-grade PET (PET-P, best known as Ertalyte) fills a precise niche: better dimensional stability and lower moisture absorption than nylon or P… | Medical, Automotive | Machined finish, Deburring |
| PolypropyleneExcellent chemical resistance. Food-safe grades available. | PP homopolymer, PP copolymer, Natural (unpigmented) PP | Polypropylene is the chemistry-lab plastic: excellent resistance to acids and bases, very low moisture absorption, low density, and autoclavable. | Semiconductor, Medical | Machined finish, Hot-air welding |
| G-10High strength, low moisture absorption, and high level of electrical insulation and chemical resistance. | G-10, G-11, FR-4 | G-10 is a glass-fabric epoxy laminate: exceptional stiffness and strength for a non-metal, superb electrical insulation, near-zero moisture absorptio… | Semiconductor, Automotive, Oil & Gas | Machined finish, Deburring and edge sealing |
| FR4Flame retardant glass fiber epoxy laminate. | FR-4, FR-5 / G-11, ESD-safe laminates | FR4 is the electronics industry's structural material: the same glass-epoxy system printed circuit boards are built on, flame-retardant to UL94 V-0,… | Semiconductor, Automotive | Machined finish, Deburring |
| PEIAmorphous material with exceptional strength and rigidity under long term heat exposure | Ultem 1000 (unfilled), Ultem 2300 (30% glass-filled) | PEI (best known as Ultem) delivers most of PEEK's virtues at a substantially lower price: continuous service around 170 °C, inherent flame resistance… | Automotive, Semiconductor, Medical | Annealing, Machined finish, Cleanroom cleaning & packing |
Engineering Plastics Capabilities & Applications
Machining engineering polymers requires specialized tooling geometries, low cutting forces, and proper thermal control to prevent plastic deformation, burring, and stress cracking:
PEEK (Polyetheretherketone - Virgin, Glass-Filled, Carbon-Filled)
PEEK provides high mechanical strength, chemical resistance, and continuous service temperatures up to 250°C. Widely specified for semiconductor wafer handling chucks, CMP retaining rings, downhole valve seats, and autoclavable medical surgical instruments.
POM / Delrin / Acetal (Natural & Black)
Polyoxymethylene (POM) is the industry standard for low-friction mechanical components, precision gears, bushings, guide rollers, and fluidic manifolds. It offers excellent dimensional stability, low moisture absorption, and clean machinability.
PEI / Ultem (Ultem 1000, Ultem 2300 Glass-Filled)
Polyetherimide (PEI) combines high dielectric strength, flame resistance (UL94 V-0), and broad chemical compatibility. Frequently used for semiconductor test sockets, probe heads, automotive sensor housings, and high-voltage electrical insulators.
PTFE / Teflon & Polypropylene
PTFE and Polypropylene offer near-universal chemical inertness and low friction for wet-bench semiconductor components, aggressive chemical fluid handling, valve diaphragms, and cryogenic seals.
PPSU / Radel (Polyphenylsulfone)
Radel PPSU delivers high impact resistance and retains tensile strength across thousands of steam autoclave cycles, making it the preferred choice for medical sterilization trays, instrument handles, and surgical trials.
Polycarbonate (PC) & Acrylic (PMMA)
Transparent optical polymers machined with high surface smoothness, followed by optional vapor polishing or diamond optical buffing for sight glasses, fluidic cartridges, and light guides.
FR4 & G-10 Glass Epoxy Laminates
Thermoset glass-epoxy composites with high mechanical stiffness and electrical insulation properties for automated semiconductor test fixtures and PCB burn-in carriers.
Thermal Stress Relief & Dimensional Stability
Plastics exhibit higher thermal expansion rates than metals. We incorporate intermediate annealing cycles for critical polymer components to relieve internal extrusion stresses, ensuring tight tolerances are maintained throughout service life.
Speak with Our Polymer Machining Specialists
Submit your 2D engineering drawings and 3D CAD models for polymer verification, DFM evaluation, and formal quotation within 24 to 48 hours.
- Mutual NDA executed within 24 hours
- ISO 9001:2015 certified & Cyber Essentials mark
- 24–48h engineering DFM feedback & formal RFQ pricing