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Formex offers a diverse range of surface treatment solutions for our clients, covering everything from sample design to mass production. Below are the core services we provide:

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Anodizing

Enables color customization and offers protective effects for aluminum parts.

Anodizing

Anodizing is an electrochemical surface treatment process primarily used for aluminum.
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Gold Plating

A surface processing technology that enhances conductivity, improves corrosion resistance, and imparts a metallic luster.

Gold Plating

is mainly used in precision electronics, aerospace parts, medical devices, and high-end decorative products for better conductivity, corrosion resistance, or aesthetic appeal.
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Sandblasting

Applied to create matte, textured finishes or for surface cleaning.

Sandblasting

We offer 30 – 220 grit bead blasting, aqua blasting and all colours of anodising including colour matching.
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Pressure knurling/cut,chip knurling

Aluminum/cut,chip knurling(left)/ Pressure knurling(right)

Pressure knurling/cut,chip knurling

Creates a non-slip textured surface for grip, locking, and identification. Used for knobs, fasteners, mechanical parts, and tools—pressure knurling for ductile metals/high volume; cut knurling for hard metals/precision parts.
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Painting/Podwer Coating

Suitable for all metals(PAINTING) and plastic, works on textured or smooth surfaces.

Painting/Podwer Coating

Its core purposes are to achieve three key functions: decorative enhancement, protective shielding, and functional reinforcement, ideal for indoor and outdoor use.
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Chromium plating/nickel plating/zinc plating

Enhances part wear resistance, corrosion resistance, and provides surface decoration.

Chromium plating/nickel plating/zinc plating

are used for metal parts requiring corrosion resistance, wear resistance, or decorative finishes.
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Etching/Laser Engraving

Forms precise patterns, text, or hollow structures via chemical etching or laser.

Etching/Laser Engraving

Used for logo or pattern customization.
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Nitriding/QPQ

Enhances part surface strength and service life, suitable for precision gears, machine tool spindles, etc.

Nitriding/QPQ

for metal parts needing enhanced surface hardness, wear resistance, and corrosion resistance, such as precision gears, machine tool spindles, fasteners, and tool components.
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Mirror Polishing/Electropolishing:

Achieves ultra-smooth, mirror-like finishes on metals.

Mirror Polishing/Electropolishing:

are used for metal parts and products requiring a smooth, reflective surface, such as automotive trim, medical instruments, kitchenware, and precision mechanical components.
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Metallic painting finish

Steel/Metallic painting finish

Metallic painting finish

We support color customization based on Pantone/RAL color charts, with glossy, semi-matte, and matte finishes available.
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Anodizing

Enables color customization and offers protective effects for aluminum parts.

Anodizing

Anodizing is an electrochemical surface treatment process primarily used for aluminum.
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silver-plated

Brass/mirror polished+silver-plated

Silver-plated

Copper, brass, bronze, steel, and other metals
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Sandblasting

Blue anodized+sandblasted 120mesh

Sandblasting

We support color customization based on Pantone/RAL color charts
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Gold Plated

aluminum/nickel strike plating+99.9%Gold Plated+mirror polished

Knurling/CD Pattern

used for parts needing anti-slip functionality or decorative texture, such as knobs, handles, electronic device casings, and precision instrument panels.
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Painting/UV Coating

Plastic painting + UV coating

Painting

We support color customization based on Pantone/RAL color charts, with glossy, semi-matte, and matte finishes available.
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Vacuum Plated UV Coating

Plastic/Vacuum Plated+UV Coating

Vacuum Plated UV Coating

Suitable for metals (aluminum, steel), plastics (ABS, PC), and composites. Widely used in electronics, automotive parts, hardware, and outdoor products.
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Etching/Laser Engraving

Forms precise patterns, text, or hollow structures via chemical etching or laser.

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Brushed

Aluminum/Brushed+Anodized

Brushed

Delivers a sleek, scratch-resistant metallic texture. Primarily used for metals (aluminum, stainless steel, brass) and occasionally for coated plastics. Ideal for decorative and functional components.
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Anodized +Sandblasted

We support color customization based on Pantone/RAL color charts

Anodized +Sandblasted

We offer 30 – 220 grit bead blasting, aqua blasting and all colours of anodising including colour matching.
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blackening

Steel/ Blackening

black oxide coating

Black oxide coating enhances corrosion resistance and provides a matte black finish, primarily for ferrous metals (carbon steel, cast iron, etc.).
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Available materials

Steel Alloys
Alloy steels incorporate a variety of alloying elements to enhance properties such as hardness, toughness, fatigue resistance, and wear resistance. Overall, they exhibit high strength.

Available materials:

  • Cold work mold steel 1.2379、1.2842、1.2080、1.2363
  • Hot work mold steel 1.2344、1.2343、1.2581
  • Alloy structural steel 5140/1.7035、4140/1.7225、4142、4340、5120/1.7147、4130/1.7218、4135、52100
  • Plastic mold steel 1.2311/p20、1.2321、1.2738、1.2083
Carbon Steel

Carbon steel features low cost, good workability (weldable/stampable/heat-treatable), and controllable properties—its performance can be adjusted from soft-tough to hard-strong by modifying carbon content.

Available materials:

  • （ASTM）1008、1010、1015、1020、1025、1040、1045、1050、G11170、G11440、4130、51100、52100、4140
  • （JIS）：SKD1、SKD11、SKT4
Aluminium Alloys

Aluminium alloys have a high strength-to weight ratio, provide natural corrosion resistance, high electrical and thermal conductivity . 

Available materials:

  • Aluminium 5A01、5A02、5A03、5A05、5A06、5B06、5A12、5A30、5A33、5A41、5A42、5A66、5005、5019、5050、5251、5052、5154、5154A、5454、5154A、5754 、5056 、5356、5456 、5082、5182、5086
  • Aluminium 6A02、6B02、6A51、6101、6101A、6005、6005A、6351、6060、6061、6063、6063A、6070、6181、6082
  • Aluminium 7A01、7A03、7A04、7A05、7A09、7A10、7A15、7A19、7A31、7A33、7A52 、7003、7005、7020、7022、7050、7075
  • Aluminium 4A03、4A11、4A13、4A17、4004、4032、4043
  • Aluminium 3A21、3003、3103、3004、3005、3105
  • Aluminium 2A01、2A02、2A04、2A06、2A10、2A11、2B11、2A12、2A13、2A14、2A16、2B16、2A17、2A20、2A21、2A25 、2A49、2A50、2A70、2A80、2A90、2004、2011、2014、2014A 、2214 、2017、2017A、2177、2218、2618、2219、2024、2124
  • Aluminium 1A99、1A97、1A95、1A93、1A90、1A85、1A80、1A80A、1070、1070A、1370A、1060、1050、1050A、1A50、1350、1145、1350、1A30、1160、1200、1235
Stainless steel

Stainless steel is characterized by high strength and excellent corrosion resistance.

Available materials:

  • Stainless Steel 303
  • Stainless Steel 304
  • Stainless Steel 304L
  • Stainless Steel 316
  • Stainless Steel 316L
  • Stainless Steel 405
  • Stainless Steel 416
Brass/Copper Alloys

Copper is known for its high electrical and thermal conductivity, is flexible and durable. 

Available copper varieties:

  • Red copper(Pure Copper & Copper Alloys with Minimal Impurities) C10100、C10200、TP2、TP1
  • Brass (Copper-Zinc Alloys) H68、C24000、C22000
  • Bronze (Originally Cu-Sn Alloys; Now Refers to Cu Alloys Except Brass & Cupronickel) C60600、C61000、C50500、C51000、C52100 
  • Cupronickel (Copper-Nickel Alloys, Nickel as Main Alloying Element) C70600
Magnesium Alloys

Magnesium is a structural metal characterized by extreme lightness, high strength, and excellent natural corrosion resistance.

Available Alloys:

  • Magnesium AZ31
  • MAM61、MZK61
Titanium Alloys

High strength-to-weight ratio, corrosion resistance, biocompatibility

Available Alloys:

  • Ti-6Al-4V (Grade 5), Ti Grade 2, Ti Grade 5 ELI
ABS

1. Excellent comprehensive mechanical properties: balanced rigidity and toughness, good impact resistance (especially low-temperature impact, -40℃ still maintain toughness);
2. Easy processing: good melt fluidity, suitable for complex-shaped injection molding (e.g., thin-walled parts, intricate structures);
3. Good surface finish: easy to coat, print, or plate (e.g., electroplating to achieve metallic luster);
4. Cost-effective, but poor high-temperature resistance (long-term service temperature only 60~80℃) and poor weather resistance (easy to yellow or brittle under UV irradiation).

PC
  • Outstanding light transmittance (over 90%, close to glass)
  • Wide temperature resistance range (-40℃~120℃), but weak chemical resistance
  • Extremely high impact resistance
PBT

1. Good temperature resistance (long-term service temperature: 120~140℃), aging resistance;
2. Excellent electrical insulation, suitable for high-frequency scenarios;
3. Easy processing (good melt fluidity), but slightly weak impact resistance (often reinforced with glass fiber).

PET(Polyethylene Terephthalate)

PET is a widely used thermoplastic polyester, available in two forms: amorphous PET (transparent, for packaging) and semi-crystalline PET (high-strength, for fibers/engineering parts). It is recyclable (marked as "Recycling Code 1").

PEEK

1. Extremely strong comprehensive performance: high temperature resistance (long-term 240℃), impact resistance, chemical corrosion resistance 
2. Good biocompatibility 
3. Excellent dimensional stability, suitable for precision parts.

Nylon (PA)

1. Excellent mechanical properties: high strength, high toughness, good impact and fatigue resistance;
2. Wear-resistant and self-lubricating: low friction coefficient, no additional lubrication required;
3. Good oil resistance, but high hygroscopicity.

POM (Delrin/Acetal)

1. High rigidity and hardness, mechanical properties close to metals;
2. Wear and fatigue resistance: no easy deformation during long-term use, stable friction coefficient;
3. Resistance to organic solvents, good dimensional stability (lower hygroscopicity than PA).

Polyethylene (PE)

Polypropylene (PP) - PP is lightweight and has high chemical resistance, food safe, articulates well, impact resistant, touch and is environmentally friendly. Mainly used for; Packaging, stationary and automotive.

Polyvinyl Chloride (PVC)

PVC is one of the most widely produced plastics globally, available in two main forms: rigid PVC (uPVC) and flexible PVC (modified with plasticizers). It is cost-effective and versatile.

PMMA (Acrylic)

Commonly called "acrylic" or "plexiglass," PMMA is a transparent thermoplastic valued for its optical clarity and weather resistance—often used as a substitute for glass.

PTFE (Teflon)

Known by the trade name "Teflon," PTFE is a fluoropolymer famous for its extreme chemical inertness and low friction coefficient—often called the "non-stick plastic."

PPSU (Polyphenylsulfone)

PPSU is a high-performance polysulfone engineering plastic, renowned for its exceptional heat resistance, toughness, and biocompatibility—ideal for demanding environments.

PS (HIPS)

PS is a common thermoplastic with two main variants: general-purpose polystyrene (GPPS) (hard, brittle) and high-impact polystyrene (HIPS) (toughened with rubber). It is cost-effective and easy to process.