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ABS · Acrylonitrile Butadiene Styrene

The go-to thermoplastic
for enclosures and prototypes.

Tough, affordable, and cosmetic-friendly. ABS is the default thermoplastic for consumer product enclosures, prototypes, and interior parts. CNC machined, injection molded, or 3D printed.

01 · Grades & variants

ABS grades.

Standard ABS works for 90% of applications. Specialty grades for heat, flame-retardancy, and automotive exterior.

Standard ABS

General purpose

Natural off-white, pigmented black. Impact-resistant, easy to paint and plate. Default for enclosures, prototypes, consumer products.

ABS-FR

Flame retardant UL 94 V-0

Bromine or phosphorus FR package. Required for electrical housings, appliance interiors, and equipment within enclosures.

PC/ABS

PC blend · high impact

Polycarbonate-ABS alloy. 80% of PC impact strength at 60% of the cost. Dashboard panels, mobile device cases, exterior housings.

ABS Medical

USP Class VI capable

Higher-purity ABS approved for short-term skin contact. Medical device housings (non-implant), wearable device shells.

ABS-HH

High-heat

Modified ABS with HDT 105 °C. Under-hood automotive, dishwasher-safe consumer products.

Plating grade ABS

Chrome plate ready

Butadiene-rich grade with etched surface for optimal chrome adhesion. Automotive grilles, trim, bathroom fixtures.

02 · Why this material

When ABS is the right call.

ABS dominates its niche: consumer-grade cosmetic housings where cost matters and the thermal environment is mild. It is not a high-temperature or structural material.

Low cost

One of the most affordable engineering thermoplastics. Stock material USD 4–6/kg, roughly 1/15 the cost of PEEK.

Paintable & platable

Accepts any primer and paint system. Plates with chrome, nickel, and copper using standard automotive chrome-plating bath.

Impact strength

Notched Izod impact 210 J/m resists drop testing and misuse. Toughens further in PC/ABS blends.

Easy to process

Machines cleanly with sharp tools, injection molds at 220–260 °C, welds ultrasonically, bonds with cyanoacrylate and MEK.

03 · Applications

ABS applications.

Consumer product enclosures

Black or white housings for IoT devices, speakers, remotes

Automotive interior

Dashboard panels (PC/ABS), trim, console components

Power tool housings

Drill and saw body shells — impact resistant

Toys

LEGO bricks are injection molded ABS — impact, color, dimensional stability

Appliance interiors

Refrigerator trays, washing machine interiors, dishwasher components

Medical device shells

Non-implantable device housings, pulse oximeter cases

3D printing

FDM prototyping standard material — cheap, forgiving, easy to machine post-print

Sports equipment

Helmet shells (with PC layer), knee pads, sporting goods

Automotive exterior

Chrome-plated grilles, badges, trim pieces

04 · Finishing

ABS finishing.

As-machined

Typical Ra 1.6 µm with sharp tools. Visible tool marks normal — paint or vapor-smooth for cosmetic.

Bead blasted

Matte finish, hides tool marks. Common pre-paint prep.

Painted

Accepts virtually any paint system. 2K polyurethane automotive paint most durable.

Chrome plated

Plating grade ABS accepts bright chrome via electroless Ni + acid Cu + decorative Cr bath.

Vapor smoothed

Acetone vapor melts surface smooth — gives injection-molded look on machined parts.

Laser marked

Bond with laser-markable additives. Dark contrast on light ABS, light on dark.

Pad printed

Logo and graphics via pad print or silk screen. Stock on black, white, grey.

Heat staking

ABS heat-stakes well for assembly with PCB and other components.

FAQ

ABS questions.

ABS prints reliably with a heated bed, produces strong parts through layer bonding, can be acetone vapor smoothed for cosmetic finish, and sands/paints well for post-processing. It is more heat-tolerant than PLA and cheaper than engineering plastics. We use ABS FDM for prototypes where SLA cosmetic isn't needed.
Not without protection. Standard ABS yellows and embrittles under UV exposure in 6–18 months. For outdoor applications, specify UV-stabilized ABS grade, paint with UV-blocking topcoat, or switch to ASA (acrylonitrile styrene acrylate) — an ABS variant with UV-stable acrylic substituted for butadiene.
Standard ABS is not FDA food-contact approved by default. Specific grades (ABS-NSF) comply with FDA 21 CFR 177.1010 for food contact. For food or beverage applications, request the NSF-listed grade specifically. Medical-grade ABS (USP Class VI) is also available for skin-contact medical applications.
PC/ABS blend offers ~80% of polycarbonate's impact strength and heat resistance at ~60% of the price. HDT rises from 98°C (ABS) to 110-125°C (PC/ABS). Impact strength and tensile modulus improve substantially. For dashboards, mobile devices, and premium consumer electronics, PC/ABS is the common choice.
Yes — excellent machinability. Use sharp positive-rake tools, moderate speeds (500 m/min for aluminum carbide), and compressed air cooling (not flood — water absorption can cause dimensional drift). Avoid long-reach end mills without coolant, as ABS softens at 105°C Tg.
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