Plastic Material

Plastic is material consisting of any of a wide range of synthetic or semi-synthetic organic compounds that are malleable and so can be molded into solid objects.

One of the most common plastic manufacturing methods, injection molding lends itself to mass production of products ranging from cell phone stands to toys. The injection molding process melts resin pellets inside the injection machine with a heated barrel. An auger moves the plastic forward and ensures an even mix of melted plastic. The machine then drives the melted plastic into a metal mold. The plastic fills the mold and results in a solid plastic part or product. Most injection molding processes employ thermoplastics that you can melt and cool multiple times, which limits material waste.

Plastic Character/SizeProduct applicationSuitable Metal 
ABS High flowability/Medium strengthHousehold appliances/scooter parts/large area or thin-wall molded productsNAK80  718  718H 
PC Non-brominated and non-chlorinated flame/3.0 mm V2/TransparenAutomotive head lamp  and Electrical  applicationS136H   S136   
PC+ABS   NAK80 S136H 
PMMA High gloss/ultra-high rigidity/especially good tensile strengthTelephone casings/lamp seats/toys/office supplies/clock casings/buttons for household appliancesS136 
POM(Actel, Delrin)   S136  
Nylon/PA    S136H  S136 
PA GF30   S136 
PVC   S136 
PEI   SKD61 
PTFE   SKD61 
PEEK   SKD61 
PPS   SKD61 
PPSU   S136 
TPE  S136 
TPU   S136 
TPR  S136 

 

MaterialAttributesTensile StrengthImpact StrengthHeat DeflectionElongation at BreakManufacturing Process
ABSCosmetic appearance34.4-82.7 MPa160-400 J/m60-93.3 °C Injection Moulding
Dimensional stabilityCNC Machining
Impact resistant 
ABS-LikeAccuracy45 – 53MPa 45.9 – 54.5°C 3D Printing
Durability
Impact resistance
ABS/PCCosmetic apperance44.1-124.1 MPa427-64060-98.8 °C Injection Moulding
Dimensional stability
Impact resistance
HDPEDurability19.9-31 MPa179 kJ/m²54.4-121.1°C Injection Moulding
Impact resistantCNC Machining
Stiffness 
LDPECrack resistance34 MPa273 kJ/m²54.4-87.7 °C Injection Moulding
Flexibility
Impact resistance
NylonRigidity41.3-199.9 MPa106-427 J/m82.2-176.6°C Injection Moulding
StrengthCNC Machining
Temperature resistance 
PA (Nylon)Rigidity46 – 48 Mpa74 J/m48 – 188°C4 -15%3D Printing
Strength
Temperature resistance
PBTChemical resistance41.3-120.6 MPa53-160 J/m93.3-215.5 °C Injection Moulding
Dimensional stabilityCNC Machining
Low moisture absorption 
PCDimensional stability62-158.5 MPa106-960 J/m65.5-148.8 °C Injection Moulding
Impact resistanceCNC Machining
PC-LikeAccuracy57 – 61   3D Printing
Stiffness
Temperature tolerance
PEEKChemical resistance    Injection Moulding
SterilizabilityCNC Machining
Stiffness 
Strength 
PEIHeat resistance96.5-193 MPa53-106 J/m176.6-215.5 °C Injection Moulding
Impact resistanceCNC Machining
Strength 
PETChemical resistance88 MPa   CNC Machining
Stiffness
Strength
PMMAOptical clarity60 MPa18 kJ/m²105°C CNC Machining
 
POM (Acetal)Chemical resistance41.3-151.6 MPa40-106 J/m82.2-148.8 °C Injection Moulding
CNC Machining
PPChemical resistance26.8-127.5 MPa26-293 J/m48.8-148.8 °C Injection Moulding
Solvent resistanceCNC Machining
PP-LikeAccuracy    3D Printing
Durability
Flexibility
PPSChemical resistance96.5-193 MPa26-320 J/m204.4-260 °C Injection Moulding
Temperature resistance
PPSUHigh deflection temperature    CNC Machining
Resistance to environmental stress cracking
Excellent thermal stability
Good electrical properties
PSImpact resistance28.9-75.8 MPa13-373 J/m  Injection Moulding
Stiffness
PSUCorrosion resistance88 MPa   CNC Machining
Mineral resistance
Sterilizability
Strength
PTFE (Teflon)Chemical resistance    CNC Machining
Flame resistance
Temperature resistance
PVCChemical resistance55 MPa 72°C20%CNC Machining
Corrosion resistance
Flame resistance
TPC-ETResilient22 MPa   Injection Moulding
Heat and chemical resistance
Strength and durability
TPE/TPVFlexibility6.8-48.2 MPa 93.3-148.8 °C Injection Moulding
TPUAbrasion resistance47.5-82.7 MPa40-533 J/m65.6-121.1 °C Injection Moulding
Flexibility
Impact resistance

 


ABS

ABS is a low-cost engineering plastic, widely used for pre-injection molding prototypes. CNC machined ABS is a great option for production-like parts, where detail and mechanical properties are important.

ABS Finish

ABS has a somewhat matte finish (think lego bricks) and can be painted. Certain faces may appear more shiny depending on their geometry and how they’re machined. If painting ABS parts, finish will be dependant of the choice of paint.


HDPE

High-density polyethylene (HDPE) is a slippery plastic that is often machined into plugs and seals. It is also an excellent electrical insulator as well as being moisture and chemically-resistant.

HDPE Finish

HDPE is a naturally opaque white because of its crystalline structure, but is also available dyed black in more limited stock sizes. It has a waxy finish leveraged for low-friction applications


Polypropylene

Polypropylene (PP) resists most solvents and chemicals, which makes it a wonderful material to manufacture laboratory equipment and containers for a variety of applications. PP also offers good fatigue strength.

Polypropylene Finish

Polypropylene is a semi-clear white color by default, but can also come in opaque white on request.